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Gridcoin 18.104.22.168-Mandatory "Fern" Release
https://github.com/gridcoin-community/Gridcoin-Research/releases/tag/22.214.171.124 Finally! After over ten months of development and testing, "Fern" has arrived! This is a whopper. 240 pull requests merged. Essentially a complete rewrite that was started with the scraper (the "neural net" rewrite) in "Denise" has now been completed. Practically the ENTIRE Gridcoin specific codebase resting on top of the vanilla Bitcoin/Peercoin/Blackcoin vanilla PoS code has been rewritten. This removes the team requirement at last (see below), although there are many other important improvements besides that. Fern was a monumental undertaking. We had to encode all of the old rules active for the v10 block protocol in new code and ensure that the new code was 100% compatible. This had to be done in such a way as to clear out all of the old spaghetti and ring-fence it with tightly controlled class implementations. We then wrote an entirely new, simplified ruleset for research rewards and reengineered contracts (which includes beacon management, polls, and voting) using properly classed code. The fundamentals of Gridcoin with this release are now on a very sound and maintainable footing, and the developers believe the codebase as updated here will serve as the fundamental basis for Gridcoin's future roadmap. We have been testing this for MONTHS on testnet in various stages. The v10 (legacy) compatibility code has been running on testnet continuously as it was developed to ensure compatibility with existing nodes. During the last few months, we have done two private testnet forks and then the full public testnet testing for v11 code (the new protocol which is what Fern implements). The developers have also been running non-staking "sentinel" nodes on mainnet with this code to verify that the consensus rules are problem-free for the legacy compatibility code on the broader mainnet. We believe this amount of testing is going to result in a smooth rollout. Given the amount of changes in Fern, I am presenting TWO changelogs below. One is high level, which summarizes the most significant changes in the protocol. The second changelog is the detailed one in the usual format, and gives you an inkling of the size of this release.
Note that the protocol changes will not become active until we cross the hard-fork transition height to v11, which has been set at 2053000. Given current average block spacing, this should happen around October 4, about one month from now. Note that to get all of the beacons in the network on the new protocol, we are requiring ALL beacons to be validated. A two week (14 day) grace period is provided by the code, starting at the time of the transition height, for people currently holding a beacon to validate the beacon and prevent it from expiring. That means that EVERY CRUNCHER must advertise and validate their beacon AFTER the v11 transition (around Oct 4th) and BEFORE October 18th (or more precisely, 14 days from the actual date of the v11 transition). If you do not advertise and validate your beacon by this time, your beacon will expire and you will stop earning research rewards until you advertise and validate a new beacon. This process has been made much easier by a brand new beacon "wizard" that helps manage beacon advertisements and renewals. Once a beacon has been validated and is a v11 protocol beacon, the normal 180 day expiration rules apply. Note, however, that the 180 day expiration on research rewards has been removed with the Fern update. This means that while your beacon might expire after 180 days, your earned research rewards will be retained and can be claimed by advertising a beacon with the same CPID and going through the validation process again. In other words, you do not lose any earned research rewards if you do not stake a block within 180 days and keep your beacon up-to-date. The transition height is also when the team requirement will be relaxed for the network.
Besides the beacon wizard, there are a number of improvements to the GUI, including new UI transaction types (and icons) for staking the superblock, sidestake sends, beacon advertisement, voting, poll creation, and transactions with a message. The main screen has been revamped with a better summary section, and better status icons. Several changes under the hood have improved GUI performance. And finally, the diagnostics have been revamped.
The wallet sync speed has been DRASTICALLY improved. A decent machine with a good network connection should be able to sync the entire mainnet blockchain in less than 4 hours. A fast machine with a really fast network connection and a good SSD can do it in about 2.5 hours. One of our goals was to reduce or eliminate the reliance on snapshots for mainnet, and I think we have accomplished that goal with the new sync speed. We have also streamlined the in-memory structures for the blockchain which shaves some memory use. There are so many goodies here it is hard to summarize them all. I would like to thank all of the contributors to this release, but especially thank @cyrossignol, whose incredible contributions formed the backbone of this release. I would also like to pay special thanks to @barton2526, @caraka, and @Quezacoatl1, who tirelessly helped during the testing and polishing phase on testnet with testing and repeated builds for all architectures. The developers are proud to present this release to the community and we believe this represents the starting point for a true renaissance for Gridcoin!
Most significantly, nodes calculate research rewards directly from the magnitudes in EACH superblock between stakes instead of using a two- or three- point average based on a CPID's current magnitude and the magnitude for the CPID when it last staked. For those long-timers in the community, this has been referred to as "Superblock Windows," and was first done in proof-of-concept form by @denravonska.
Network magnitude unit pinned to a static value of 0.25
Max research reward allowed per block raised to 16384 GRC (from 12750 GRC)
New CPIDs begin accruing research rewards from the first superblock that contains the CPID instead of from the time of the beacon advertisement
500 GRC research reward limit for a CPID's first stake
6-month expiration for unclaimed rewards
10-block spacing requirement between research reward claims
Rolling 5-day payment-per-day limit
Legacy tolerances for floating-point error and time drift
The need to include a valid copy of a CPID's magnitude in a claim
10-block emission adjustment interval for the magnitude unit
One-time beacon activation requires that participants temporarily change their usernames to a verification code at one whitelisted BOINC project
Verification codes of pending beacons expire after 3 days
Self-service beacon removal
Burn fee for beacon advertisement increased from 0.00001 GRC to 0.5 GRC
Rain addresses derived from beacon keys instead of a default wallet address
Beacon expiration determined as of the current block instead of the previous block
The ability for developers to remove beacons
The ability to sign research reward claims with non-current but unexpired beacons
As a reminder:
Beacons expire after 6 months pass (180 days)
Beacons can be renewed after 5 months pass (150 days)
Renewed beacons must be signed with the same key as the original beacon
Magnitudes less than 1 include two fractional places
Magnitudes greater than or equal to 1 but less than 10 include one fractional place
A valid superblock must match a scraper convergence
Superblock popularity election mechanics
Yes/no/abstain and single-choice response types (no user-facing support yet)
To create a poll, a maximum of 250 UTXOs for a single address must add up to 100000 GRC. These are selected from the largest downwards.
Burn fee for creating polls scaled by the number of UTXOs claimed
50 GRC for a poll contract
0.001 GRC per claimed UTXO
Burn fee for casting votes scaled by the number of UTXOs claimed
0.01 GRC for a vote contract
0.01 GRC to claim magnitude
0.01 GRC per claimed address
0.001 GRC per claimed UTXO
Maximum length of a poll title: 80 characters
Maximum length of a poll question: 100 characters
Maximum length of a poll discussion website URL: 100 characters
Maximum number of poll choices: 20
Maximum length of a poll choice label: 100 characters
Magnitude, CPID count, and participant count poll weight types
The ability for developers to remove polls and votes
[126.96.36.199] 2020-09-03, mandatory, "Fern"
Backport newer uint256 types from Bitcoin #1570 (@cyrossignol)
Implement project level rain for rainbymagnitude #1580 (@jamescowens)
Upgrade utilities (Update checker and snapshot downloadeapplication) #1576 (@iFoggz)
Provide fees collected in the block by the miner #1601 (@iFoggz)
Add support for generating legacy superblocks from scraper stats #1603 (@cyrossignol)
Port of the Bitcoin Logger to Gridcoin #1600 (@jamescowens)
Implement zapwallettxes #1605 (@jamescowens)
Implements a global event filter to suppress help question mark #1609 (@jamescowens)
Add next target difficulty to RPC output #1615 (@cyrossignol)
Add caching for block hashes to CBlock #1624 (@cyrossignol)
Make toolbars and tray icon red for testnet #1637 (@jamescowens)
Add an rpc call convergencereport #1643 (@jamescowens)
Implement newline filter on config file read in #1645 (@jamescowens)
Implement beacon status icon/button #1646 (@jamescowens)
Add gridcointestnet.png #1649 (@caraka)
Add precision to support magnitudes less than 1 #1651 (@cyrossignol)
Replace research accrual calculations with superblock snapshots #1657 (@cyrossignol)
Publish example gridcoinresearch.conf as a md document to the doc directory #1662 (@jamescowens)
Add options checkbox to disable transaction notifications #1666 (@jamescowens)
Add support for self-service beacon deletion #1695 (@cyrossignol)
Add support for type-specific contract fee amounts #1698 (@cyrossignol)
Add verifiedbeaconreport and pendingbeaconreport #1696 (@jamescowens)
Add preliminary testing option for block v11 height on testnet #1706 (@cyrossignol)
Add verified beacons manifest part to superblock validator #1711 (@cyrossignol)
Implement beacon, vote, and superblock display categories/icons in UI transaction model #1717 (@jamescowens)
I tried asking this in the bitcoincore sub yesterday, but it only has a handful of members and got no answers, so i now try here. When bitcoin-qt is first started, it asks for the location of datadir. If it is set to a custom location, it remembers it on subsequent launches. Where is this location stored, as no bitcoin.conf is generated in the default location, and i have not seen any other documentation to specify datadir except command line option and bitcoin.conf file?
Evo uses Proof of Stake consensus mechanism, which is different from Bitcoin's PoW (Proof of Work). Evo mining process in PoS system is called staking. The block producer will get 6.5EVO, as well as the transaction fees and gases as block reward. So the real reward is usually more than 6.5 evo in total. Basic requirements for staking：
Run a Coinevo fullnode, and keep online (Since Coinevo is using PoS, we don't need any mining machine, just PC or even Raspberry Pi can run a fullnode);
Have some EVO in the wallet (fullnode)（Any amount of EVO can be used for staking, more EVO means higher possibility to stake).
If you have no EVO yet, please get some from market before you doing following staking settings. Currently, Coinevo Core wallet is the only wallet that support Coinevo PoS staking. Note that other wallets like mobile wallet and Evo Electrum are not able to stake for the time being. Two ways to stake:
Method 1：Staking with evod, using command line, suitable for Linux/OSX/Windows/Raspberry Pi users who are familiar with command line tools.
Method 2：Staking with evo-qt wallet, with GUI, suitable for common users.
Either way works in the same way for staking, so you can choose either method you like.
Method 1：Staking with evod (command line)
1. Run evod
Follow the guidance to run evod :
Staking is default on for evod, so no need for other options if you only want to stake.
2. Send some EVO to your wallet
First you can generate a new address with：
This will generate a new address with Prefix '1'. You can send some EVO to this new generated address for staking. You can generate as many addresses as you like, and send arbitrary EVO as you like for staking. Note：The coin should wait for 500 blocks before being able to stake, i.e. about 17 to 24 hours to MATURE.. After the EVO node syncing to the latest block, you can check current balance with ./evo-cli getbalance or get utxo list with./evo-cli listunspent Please do following steps after your coin is mature.
enabled means if your wallet have enabled staking, it should be true by default. staking means if your wallet is currently staking (mining). weight stands for the amount of EVO that is staking right now, with unit 10^-8EVO, here in the example, we have 0.532EVO staking. expectedtime stands for the expected time that you will get a reward, the unit is second.
4. How to stake if the wallet is encrypted？
If your wallet is not encrypted, you can skip this section. However, for security, we recommand you encrypt your wallet. Coinevo wallet can be encrypted with encryptwallet . However, staking will be stopped when it is encrypted. For example, ./evo-cli getstakinginfo for a encrypted wallet：
See staking turns to false , which means wallet is not staking. You can use walletpassphrase to unlock wallet for staking：
./evo-cli walletpassphrase "" 99999999 true
After unlocking, you can double check getstakinginfo , it should look the same with previous unlocked result, staking become true.
Method 2: Staking with evo-qt wallet (official PC wallet)
Current supported platform: Mac/Linux/Windows.
1. Open Evo qt wallet
Launch the wallet.
2. Send some EVO to your wallet
If you already have some EVO in your wallet, you might skip this step. Note：The coin should wait for 500 blocks before being able to stake, i.e. about 17 to 24 hours to MATURE..
3. Check staking status
The flash sign at the bottom of wallet shows staking info : Solid black flash means it is staking now. For more information, you can put your mouse on the flash, e.g.:
Staking : if it is staking；
Your weight is : How many EVO are able to used for staking, unit is EVO;
Network weight is : How many EVO are staking in the network, unit is EVO；
Expected time : expected time to get reward, unit is Day.
Hollow flash measn it is not staking Possible reasons for not staking：
1.There is no coins of no mature coins (more than 500 confirmations(blocks)) -- Solution: send some EVO to the wallet and wait for 500 blocks (about 17 hours);
2.Wallet is locked/encrypted -- Solution: unlock the wallet for staking.
No flash sign means staking is disabled
3.Staking is disabled -- Solution: enable staking in the evo.conf (-staking=true)
About block reward
The block producer will get more than 6.5 EVO rewards, something to keep in mind:
The reward come from a new transaction, you can check balance to see if you get the reward.
Once succesfully stake, you will get 0.65EVO reward immediately.
Other 5.85EVO will be sent to you after 500 blocks (about 17 or 24 hours), in continuous 9 blocks, within each block you will get 0.65EVO,, so in total it will be 5.85EVO.
The staked coins (UTXO) will be locked for 500 blocks, during this period, it cannot be spent nor be used to stake.
How to disable staking?
Staking is by default enabled for Coinevo wallet. If you need to disable staking for some reason (for example exchanges are always recommanded to disable staking), you might following anyone of the 3 ways below: 1 Add -staking=false when running Coinevo node：
./evod -staking=false -daemon
For qt wallet, it is like：
2 Add config staking=false in evo.conf; 3 Encrypt wallet, since encrypted wallet will automatically stop staking.
06/08/2019 3 min read📷216SHARES216VIEWSShare on Twitter When new Creamcoin was designed, we had in mind not only a coin that would hold parity with any cryptocurrency, but something that would demonstrate the extra-special capabilities of a decentralized ledger, capable to introduce, help and bring it further to the regular people. Blockchain developing is unstoppable complex process with endless possibilities. Integration of applications on such a technology could achieve better, secure pass of value. 0.18.0.0 On August 5th, 2019 Creamcoin code was successfully updated to the latest Bitcoin version 0.18.0 https://github.com/creamcoin/cream/ With this latest release, we proved that Creamcoin itself it’s not a sort of a tenant to the Bitcoin. Much easier to apply and to pursue the main purpose of existence and to create further innovations in our Cream Line. The new release brings tremendous performance improvements, as well as integration will be much easier for any platform, exchange or integrator. Wallets are available to Releases tab on github WALLETS
Cream Core now supports loading multiple, separate wallets. The wallets are completely separated, with individual balances, keys and received transactions. Multi-wallet is enabled by using more than one -wallet argument when starting Creamcoin, either on the command line or in the Cream config file. In Creamcoin-Qt, only the first wallet will be displayed and accessible for creating and signing transactions. GUI selectable multiple wallets will be supported in a future version. This feature will continue to be refined with later updates, as there are still some known issues in using the GUI to access the “multiwallet” command. The most notable is that you can’t use coin control features with multiple wallets loaded, or else you will likely retain the wrong wallet when attempting to switch wallets. When running Cream Core with multi-wallet, wallet-level RPC methods must specify the wallet for which they’re intended in every request. HTTP RPC requests should be send to the :/wallet// endpoint, for example 127.0.0.1:8332/wallet/wallet1.dat/. bitcoin-cli commands should be run with a -rpcwallet option, for example [bitcoin-cli -rpcwallet=wallet1.dat getbalance] A new node-level [listwallets] RPC method is added to display which wallets are currently loaded. Starting command for both wallets should look like this: [creamd -daemon -wallet=wallet1.dat -wallet=wallet2.dat]
Hardware Wallet native compatibility
With a new release of Cream Core the possibility is added in the form of use hardware wallets (Ledger, Trezor, Digital BitBox, KeepKey, Coldcard), but this process is manual and involves the use of Hardware Wallet Interaction (HWI) tool and it needs HW support and addition of Cream in the future, which is not excluded from roadmap. This is a great news for everyone who use Cream Core, and want extra security. Only applies to those who can use command line/CLI (for now), and when some of Hardware wallets actually supports Cream.
SegWit 4MB limit
SegWit replacing the block size limit with a block “weight” limit, allowing up to 4 megabytes of transaction data, and giving a substantial boost in the transaction capacity of the Cream network.
In the same with the new code update, Creamcoin Team is doing major shifting power, migrating the marketing and promotion activities, from our news site cream.technology to our main page www.creamcoin.com. We will come up with additional statement in this matter, so our supporters and followers have better perspective of Cream Line and the products of it. In the meantime we are looking into new ways that developers can enhance the capabilities of the Creamcoin protocol, integration of decentralized exchange functionality, lightning network and number of other options that would allow for different types of conditional sends of Creamcoin assets. We are inviting any individual, platform, exchange or integrator who would like to submit recommendations or feature requests, feel free to contribute to the Creamcoin Github. By Cream Team
Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything. The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years. In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.
UPDATED - Groestlcoin Core 2.18.2
This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables. NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.
Builds are now done through Gitian
Calls to getblocktemplate will fail if the segwit rule is not specified. Calling getblocktemplate without segwit specified is almost certainly a misconfiguration since doing so results in lower rewards for the miner. Failed calls will produce an error message describing how to enable the segwit rule.
A warning is printed if an unrecognized section name is used in the configuration file. Recognized sections are [test], [main], and [regtest].
Four new options are available for configuring the maximum number of messages that ZMQ will queue in memory (the "high water mark") before dropping additional messages. The default value is 1,000, the same as was used for previous releases.
The rpcallowip option can no longer be used to automatically listen on all network interfaces. Instead, the rpcbind parameter must be used to specify the IP addresses to listen on. Listening for RPC commands over a public network connection is insecure and should be disabled, so a warning is now printed if a user selects such a configuration. If you need to expose RPC in order to use a tool like Docker, ensure you only bind RPC to your localhost, e.g. docker run [...] -p 127.0.0.1:1441:1441 (this is an extra :1441 over the normal Docker port specification).
The rpcpassword option now causes a startup error if the password set in the configuration file contains a hash character (#), as it's ambiguous whether the hash character is meant for the password or as a comment.
The whitelistforcerelay option is used to relay transactions from whitelisted peers even when not accepted to the mempool. This option now defaults to being off, so that changes in policy and disconnect/ban behavior will not cause a node that is whitelisting another to be dropped by peers.
A new short about the JSON-RPC interface describes cases where the results of anRPC might contain inconsistencies between data sourced from differentsubsystems, such as wallet state and mempool state.
A new document introduces Groestlcoin Core's BIP174 interface, which is used to allow multiple programs to collaboratively work to create, sign, and broadcast new transactions. This is useful for offline (cold storage) wallets, multisig wallets, coinjoin implementations, and many other cases where two or more programs need to interact to generate a complete transaction.
The output script descriptor (https://github.com/groestlcoin/groestlcoin/blob/mastedoc/descriptors.md) documentation has been updated with information about new features in this still-developing language for describing the output scripts that a wallet or other program wants to receive notifications for, such as which addresses it wants to know received payments. The language is currently used in multiple new and updated RPCs described in these release notes and is expected to be adapted to other RPCs and to the underlying wallet structure.
A new --disable-bip70 option may be passed to ./configure to prevent Groestlcoin-Qt from being built with support for the BIP70 payment protocol or from linking libssl. As the payment protocol has exposed Groestlcoin Core to libssl vulnerabilities in the past, builders who don't need BIP70 support are encouraged to use this option to reduce their exposure to future vulnerabilities.
The minimum required version of Qt (when building the GUI) has been increased from 5.2 to 5.5.1 (the depends system provides 5.9.7)
getnodeaddresses returns peer addresses known to this node. It may be used to find nodes to connect to without using a DNS seeder.
listwalletdir returns a list of wallets in the wallet directory (either the default wallet directory or the directory configured bythe -walletdir parameter).
getrpcinfo returns runtime details of the RPC server. Currently, it returns an array of the currently active commands and how long they've been running.
deriveaddresses returns one or more addresses corresponding to an output descriptor.
getdescriptorinfo accepts a descriptor and returns information aboutit, including its computed checksum.
joinpsbts merges multiple distinct PSBTs into a single PSBT. The multiple PSBTs must have different inputs. The resulting PSBT will contain every input and output from all the PSBTs. Any signatures provided in any of the PSBTs will be dropped.
analyzepsbt examines a PSBT and provides information about what the PSBT contains and the next steps that need to be taken in order to complete the transaction. For each input of a PSBT, analyze psbt provides information about what information is missing for that input, including whether a UTXO needs to be provided, what pubkeys still need to be provided, which scripts need to be provided, and what signatures are still needed. Every input will also list which role is needed to complete that input, and analyzepsbt will also list the next role in general needed to complete the PSBT. analyzepsbt will also provide the estimated fee rate and estimated virtual size of the completed transaction if it has enough information to do so.
utxoupdatepsbt searches the set of Unspent Transaction Outputs (UTXOs) to find the outputs being spent by the partial transaction. PSBTs need to have the UTXOs being spent to be provided because the signing algorithm requires information from the UTXO being spent. For segwit inputs, only the UTXO itself is necessary. For non-segwit outputs, the entire previous transaction is needed so that signers can be sure that they are signing the correct thing. Unfortunately, because the UTXO set only contains UTXOs and not full transactions, utxoupdatepsbt will only add the UTXO for segwit inputs.
getpeerinfo now returns an additional minfeefilter field set to the peer's BIP133 fee filter. You can use this to detect that you have peers that are willing to accept transactions below the default minimum relay fee.
The mempool RPCs, such as getrawmempool with verbose=true, now return an additional "bip125-replaceable" value indicating whether thetransaction (or its unconfirmed ancestors) opts-in to asking nodes and miners to replace it with a higher-feerate transaction spending any of the same inputs.
settxfee previously silently ignored attempts to set the fee below the allowed minimums. It now prints a warning. The special value of"0" may still be used to request the minimum value.
getaddressinfo now provides an ischange field indicating whether the wallet used the address in a change output.
importmulti has been updated to support P2WSH, P2WPKH, P2SH-P2WPKH, and P2SH-P2WSH. Requests for P2WSH and P2SH-P2WSH accept an additional witnessscript parameter.
importmulti now returns an additional warnings field for each request with an array of strings explaining when fields are being ignored or are inconsistent, if there are any.
getaddressinfo now returns an additional solvable Boolean field when Groestlcoin Core knows enough about the address's scriptPubKey, optional redeemScript, and optional witnessScript for the wallet to be able to generate an unsigned input spending funds sent to that address.
The getaddressinfo, listunspent, and scantxoutset RPCs now return an additional desc field that contains an output descriptor containing all key paths and signing information for the address (except for the private key). The desc field is only returned for getaddressinfo and listunspent when the address is solvable.
importprivkey will preserve previously-set labels for addresses or public keys corresponding to the private key being imported. For example, if you imported a watch-only address with the label "coldwallet" in earlier releases of Groestlcoin Core, subsequently importing the private key would default to resetting the address's label to the default empty-string label (""). In this release, the previous label of "cold wallet" will be retained. If you optionally specify any label besides the default when calling importprivkey, the new label will be applied to the address.
getmininginfo now omits currentblockweight and currentblocktx when a block was never assembled via RPC on this node.
The getrawtransaction RPC & REST endpoints no longer check the unspent UTXO set for a transaction. The remaining behaviors are as follows:
If a blockhash is provided, check the corresponding block.
If no blockhash is provided, check the mempool.
If no blockhash is provided but txindex is enabled, also check txindex.
unloadwallet is now synchronous, meaning it will not return until the wallet is fully unloaded.
importmulti now supports importing of addresses from descriptors. A desc parameter can be provided instead of the "scriptPubKey" in are quest, as well as an optional range for ranged descriptors to specify the start and end of the range to import. Descriptors with key origin information imported through importmulti will have their key origin information stored in the wallet for use with creating PSBTs.
listunspent has been modified so that it also returns witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output.
createwallet now has an optional blank argument that can be used to create a blank wallet. Blank wallets do not have any keys or HDseed. They cannot be opened in software older than 2.18.2. Once a blank wallet has a HD seed set (by using sethdseed) or private keys, scripts, addresses, and other watch only things have been imported, the wallet is no longer blank and can be opened in 2.17.2. Encrypting a blank wallet will also set a HD seed for it.
signrawtransaction is removed after being deprecated and hidden behind a special configuration option in version 2.17.2.
The 'account' API is removed after being deprecated in v2.17.2 The 'label' API was introduced in v2.17.2 as a replacement for accounts. See the release notes from v2.17.2 for a full description of the changes from the 'account' API to the 'label' API.
addwitnessaddress is removed after being deprecated in version 2.16.0.
generate is deprecated and will be fully removed in a subsequent major version. This RPC is only used for testing, but its implementation reached across multiple subsystems (wallet and mining), so it is being deprecated to simplify the wallet-node interface. Projects that are using generate for testing purposes should transition to using the generatetoaddress RPC, which does not require or use the wallet component. Calling generatetoaddress with an address returned by the getnewaddress RPC gives the same functionality as the old generate RPC. To continue using generate in this version, restart groestlcoind with the -deprecatedrpc=generate configuration option.
Be reminded that parts of the validateaddress command have been deprecated and moved to getaddressinfo. The following deprecated fields have moved to getaddressinfo: ismine, iswatchonly,script, hex, pubkeys, sigsrequired, pubkey, embedded,iscompressed, label, timestamp, hdkeypath, hdmasterkeyid.
The addresses field has been removed from the validateaddressand getaddressinfo RPC methods. This field was confusing since it referred to public keys using their P2PKH address. Clients should use the embedded.address field for P2SH or P2WSH wrapped addresses, and pubkeys for inspecting multisig participants.
A new /rest/blockhashbyheight/ endpoint is added for fetching the hash of the block in the current best blockchain based on its height (how many blocks it is after the Genesis Block).
A new Window menu is added alongside the existing File, Settings, and Help menus. Several items from the other menus that opened new windows have been moved to this new Window menu.
In the Send tab, the checkbox for "pay only the required fee" has been removed. Instead, the user can simply decrease the value in the Custom Fee rate field all the way down to the node's configured minimumrelay fee.
In the Overview tab, the watch-only balance will be the only balance shown if the wallet was created using the createwallet RPC and thedisable_private_keys parameter was set to true.
The launch-on-startup option is no longer available on macOS if compiled with macosx min version greater than 10.11 (useCXXFLAGS="-mmacosx-version-min=10.11" CFLAGS="-mmacosx-version-min=10.11" for setting the deployment sdkversion)
A new groestlcoin-wallet tool is now distributed alongside Groestlcoin Core's other executables. Without needing to use any RPCs, this tool can currently create a new wallet file or display some basic information about an existing wallet, such as whether the wallet is encrypted, whether it uses an HD seed, how many transactions it contains, and how many address book entries it has.
Since version 2.16.0, Groestlcoin Core's built-in wallet has defaulted to generating P2SH-wrapped segwit addresses when users want to receive payments. These addresses are backwards compatible with all widely used software. Starting with Groestlcoin Core 2.20.1 (expected about a year after 2.18.2), Groestlcoin Core will default to native segwitaddresses (bech32) that provide additional fee savings and other benefits. Currently, many wallets and services already support sending to bech32 addresses, and if the Groestlcoin Core project sees enough additional adoption, it will instead default to bech32 receiving addresses in Groestlcoin Core 2.19.1. P2SH-wrapped segwit addresses will continue to be provided if the user requests them in the GUI or by RPC, and anyone who doesn't want the update will be able to configure their default address type. (Similarly, pioneering users who want to change their default now may set the addresstype=bech32 configuration option in any Groestlcoin Core release from 2.16.0 up.)
BIP 61 reject messages are now deprecated. Reject messages have no use case on the P2P network and are only logged for debugging by most network nodes. Furthermore, they increase bandwidth and can be harmful for privacy and security. It has been possible to disable BIP 61 messages since v2.17.2 with the -enablebip61=0 option. BIP 61 messages will be disabled by default in a future version, before being removed entirely.
The submitblock RPC previously returned the reason a rejected block was invalid the first time it processed that block but returned a generic "duplicate" rejection message on subsequent occasions it processed the same block. It now always returns the fundamental reason for rejecting an invalid block and only returns "duplicate" for valid blocks it has already accepted.
A new submitheader RPC allows submitting block headers independently from their block. This is likely only useful for testing.
The signrawtransactionwithkey and signrawtransactionwithwallet RPCs have been modified so that they also optionally accept a witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output. This is compatible with the change to listunspent.
For the walletprocesspsbt and walletcreatefundedpsbt RPCs, if thebip32derivs parameter is set to true but the key metadata for a public key has not been updated yet, then that key will have a derivation path as if it were just an independent key (i.e. no derivation path and its master fingerprint is itself).
The -usehd configuration option was removed in version 2.16.0 From that version onwards, all new wallets created are hierarchical deterministic wallets. This release makes specifying -usehd an invalid configuration option.
This release allows peers that your node automatically disconnected for misbehaviour (e.g. sending invalid data) to reconnect to your node if you have unused incoming connection slots. If your slots fill up, a misbehaving node will be disconnected to make room for nodes without a history of problems (unless the misbehaving node helps your node in some other way, such as by connecting to a part of the Internet from which you don't have many other peers). Previously, Groestlcoin Core banned the IP addresses of misbehaving peers for a period (default of 1 day); this was easily circumvented by attackers with multiple IP addresses. If you manually ban a peer, such as by using the setban RPC, all connections from that peer will still be rejected.
The key metadata will need to be upgraded the first time that the HDseed is available. For unencrypted wallets this will occur on wallet loading. For encrypted wallets this will occur the first time the wallet is unlocked.
Newly encrypted wallets will no longer require restarting the software. Instead such wallets will be completely unloaded and reloaded to achieve the same effect.
A sub-project of Bitcoin Core now provides Hardware Wallet Interaction (HWI) scripts that allow command-line users to use several popular hardware key management devices with Groestlcoin Core. See their project page for details.
This release changes the Random Number Generator (RNG) used from OpenSSL to Groestlcoin Core's own implementation, although entropy gathered by Groestlcoin Core is fed out to OpenSSL and then read back in when the program needs strong randomness. This moves Groestlcoin Core a little closer to no longer needing to depend on OpenSSL, a dependency that has caused security issues in the past. The new implementation gathers entropy from multiple sources, including from hardware supporting the rdseed CPU instruction.
On macOS, Groestlcoin Core now opts out of application CPU throttling ("app nap") during initial blockchain download, when catching up from over 100 blocks behind the current chain tip, or when reindexing chain data. This helps prevent these operations from taking an excessively long time because the operating system is attempting to conserve power.
How to Upgrade?
Windows If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer. OSX If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications. Ubuntu http://groestlcoin.org/forum/index.php?topic=441.0
ALL NEW - Groestlcoin Moonshine iOS/Android Wallet
Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network. GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.
Groestlcoin Mainnet & Testnet supported
Multiple wallet support
Electrum - Support for both random and custom peers
Biometric + Pin authentication
Custom fee selection
Import mnemonic phrases via manual entry or scanning
BIP39 Passphrase functionality
Support for Segwit-compatible & legacy addresses in settings
Support individual private key sweeping
UTXO blacklisting - Accessible via the Transaction Detail view, this allows users to blacklist any utxo that they do not wish to include in their list of available utxo's when sending transactions. Blacklisting a utxo excludes its amount from the wallet's total balance.
Ability to Sign & Verify Messages
Support BitID for password-free authentication
Coin Control - This can be accessed from the Send Transaction view and basically allows users to select from a list of available UTXO's to include in their transaction.
HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled. HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user. Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.
Simplified payment verification for fast mobile performance
Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases. This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats. To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.
If a word is wrong, the tool will try to suggest the closest option.
If a word is missing or unknown, please type "?" instead and the tool will find all relevant options.
NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator. VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline. If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address. VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase. VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).
Fixed size arithmetic
Fast Modular Inversion (Delayed Right Shift 62 bits)
SecpK1 Fast modular multiplication (2 steps folding 512bits to 256bits using 64 bits digits)
Use some properties of elliptic curve to generate more keys
SSE Secure Hash Algorithm SHA256 and RIPEMD160 (CPU)
Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet. If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).
Ability to continue finding keys after first one is found
Includes warning on start-up if connected to the internet
Ability to output keys to a text file (And shows button to open that directory)
Show and hide the private key with a simple toggle switch
Show full output of commands
Ability to choose between Processor (CPU) and Graphics Card (GPU) ( NVidia ONLY! )
Features both a Light and Dark Material Design-Style Themes
Free software - MIT. Anyone can audit the code.
Written in C# - The code is short, and easy to review.
Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode. This wallet was previously deprecated but has been brought back to life with modern standards.
Works via TOR or SOCKS5 proxy
Can use bootstrap.dat format as blockchain database
Import/Export blockchain to/from bootstrap.dat
Import wallet.dat from Groestlcoin-qt wallet
Export wallet to wallet.dat
Use both groestlcoin-wpf and groestlcoin-qt with the same addresses in parallel. When you send money from one program, the transaction will automatically be visible on the other wallet.
Rescan blockchain with a simple mouse click
Works as a full node and listens to port 1331 (listening port can be changed)
Fast Block verifying, parallel processing on multi-core CPUs
Mine Groestlcoins with your CPU by a simple mouse click
All private keys are kept encrypted on your local machine (or on a USB stick)
Lite - Has a lightweight "thin client" mode which does not require a new user to download the entire Groestlcoin chain and store it
Free and decentralised - Open Source under GNU license
Fixed Import/Export to wallet.dat
Rescan wallet option
Change wallet password option
Address type and Change type options through *.conf file
Import from bootstrap.dat - It is a flat, binary file containing Groestlcoin blockchain data, from the genesis block through a recent height. All versions automatically validate and import the file "grs.bootstrap.dat" in the GRS directory. Grs.bootstrap.dat is compatible with Qt wallet. GroestlCoin-Qt can load from it.
In Full mode file %APPDATA%\Groestlcoin-WPF\GRS\GRS.bootstrap.dat is full blockchain in standard bootstrap.dat format and can be used with other clients.
Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node. It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node. Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine. Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in. Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet. Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.
Use your own node
Uses less CPU and RAM than ElectrumX
Used intermittently rather than needing to be always-on
Doesn't require an index of every Groestlcoin address ever used like on ElectrumX
UPDATED – Android Wallet 7.38.1 - Main Net + Test Net
The app allows you to send and receive Groestlcoin on your device using QR codes and URI links. When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.
Add confidence messages, helping users to understand the confidence state of their payments.
Handle edge case when restoring via an external app.
Count devices with a memory class of 128 MB as low ram.
Introduce dark mode on Android 10 devices.
Reduce memory usage of PIN-protected wallets.
Tapping on the app's version will reveal a checksum of the APK that was installed.
Fix issue with confirmation of transactions that empty your wallet.
Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets). Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet. Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.
Storage space: I am using an 8 GB microSD card for the OS, and a 128 GB USB drive for data. Minimums I would recommend: 8GB SD card and 32 GB USB drive.
Reddcoin Core client version: v188.8.131.52-a8767ba-beta (most recent version at this moment). ↳ Screenshot
You need the OS; Lubuntu. Download Lubuntu (707 MB) for the Raspberry Pi: https://ubuntu-pi-flavour-maker.org/download/. It's a .torrent download, so you will need a BitTorrent client. Message me or post in this thread if you need help with this.
You need software to write the OS to the SD card. I use Etcher. Download Etcher: https://etcher.io/.
Select image: select the lubuntu-16.04.2-desktop-armhf-raspberry-pi.img.xz file.
Select drive: select your microSD card.
Plug the SD card into your Raspberry Pi and power it up.
Lubuntu should boot up.
Set up Lubuntu, connect to the internet (wired or wireless). ↳ As username, I chose "rpi3b". You will see this username throughout this whole tutorial.
Make sure date and time are correct ([Menu] > System Tools > Time and Date). ↳ Click on Unlock to make changes. I personally change Configuration to "Keep synchronized with Internet servers". ↳ Screenshot
Reboot ([Menu] > Logout > Reboot). I am connected to wifi, but have issues getting wifi to work on initial boot. A reboot solves this issue.
Make sure system is up-to-date, install never versions.
Open LXTerminal ([Menu] > System Tools > LXTerminal). ↳ Screenshot
Enter the following in LXTerminal: sudo apt update && sudo apt upgrade ↳ Screenshot
You will be asked if you really want to continue. Enter Y (yes).
Updates are being installed! Wait until it's finished.
Install programs that will be used in this tutorial.
GParted: to partition the USB drive.
Htop: to see the amount of memory (RAM) and swap that is in use.
Enter the following in LXTerminal to install these 2 programs. sudo apt install gparted && sudo apt install htop ↳ Screenshot
Create 2 partitions on the USB drive: 1) Swap partition 2) data partition (for the Reddcoin blockchain) The swap partition is necessary: The Reddcoin wallet can be memory intensive. To prevent any crashes or freezes, add 2 GB of 'virtual' memory by creating a swap partition.
Important: Backup your USB drive if needed. The USB drive will be formatted, so the data on the USB drive will be wiped.
Please use the USB drive solely for this purpose, do not combine it with other stuff.
Keep your USB drive plugged in, do not (randomly) plug it out.
Plug your USB drive in.
GParted will be used to create the partititons. Start GParted via LXTerminal: sudo gparted ↳ Screenshot
Apply the changes. Click on the check mark or select Edit > Apply All Operations. ↳ Screenshot ↳ Screenshot
Important: The name of the swap partition is needed later, so please write it down. Mine is /dev/sda1 (first partition on first drive (drive 'a')). ↳ Screenshot
Reboot. After the reboot, the data partition you just created should be visible on your desktop. ↳ Screenshot
The swap partition is created, so now we can enable and use it.
The swap in use can be monitored with the program Htop. Open Htop ([Menu] > System Tools > Htop) to see the 'Swp' (swap) in use. ↳ Screenshot By default, swap is not used, so 0K. ↳ Screenshot You can leave Htop open.
To enable the swap partition, open LXTerminal and enter the following commands: (Assuming /dev/sda1 is your swap partition.)
Unpack the file (large file, takes around 15 minutes to unpack): sudo xz -d bootstrap.dat.xz ↳ Screenshot
After a successful unpack, your will find the file bootstrap.dat in your USB root folder. ↳ Screenshot
On the first run of the Reddcoin Core client, it will ask for a data directory to store the blockchain and wallet data.
Start the Reddcoin Core client: sudo /media/rpi3b/usb/reddcoin/src/qt/reddcoin-qt ↳ Screenshot
The welcome screen will appear and ask you about the data directory. I suggest a new folder on your USB drive, I picked blockchain. The directory will be created with all the necessary files. ↳ Screenshot
Click on the three dots (...) on the right. ↳ Screenshot
Click on Create Folder at the upper right corner. Type and enter in the folder name. (In my case: blockchain.) Click on Open. ↳ Screenshot ↳ Screenshot ↳ Screenshot
After selecting the directory, the Reddcoin Core client will start. Wait till it's fully loaded and close it.
Move the bootstrap.dat file to your data directory you selected in the previous step. By doing this, Reddcoin Core will use the bootstrap.dat file to import the blockchain, which speeds up syncing. sudo mv bootstrap.dat /media/rpi3b/usb/blockchain/ (Assuming blockchain as data directory.) ↳ Screenshot
The Reddcoin Core client set up is completed, but you still have to sync fully with the blockchain before you can send, receive and stake.
Keep the client running until it's fully synchronized. It will use the bootstrap file first, and download the rest of the blockchain to complete the sync. This can take some time (it took 2 days for me). Syncing the blockchain uses a lot of resources, so the software may react slow.
You can see the progress in the debug window (Help > Debug window). ↳ Screenshot
When the synchronization is completed, the red (out of sync) will disappear on the Overview screen! ↳ Screenshot
When synchronization is complete, you can start staking your Reddcoins.
You can write down your private key or copy and save it in a document. Make sure you save it somewhere only you can access it.
To import later: Debug window -> Console -> importprivkey [label] [label] is optional. ↳ Screenshot (without a label) ↳ Screenshot (with a label)
Boot with only 1 USB drive plugged in: Make sure only the USB drive (with the swap partition and data partition) is plugged in when you boot up your Raspberry Pi. This to make sure the swap partition (/dev/sda1) is recognized correctly. If you boot up with multiple USB drives, Lubuntu might see the USB drive with the swap partition as the second drive (instead of the first drive), and ignore the 2 GB swap partition. If this happens, starting Reddcoin can render the Raspberry Pi unresponsive.
Start Reddcoin Core easier Run a shell script (.sh file), so you can start Reddcoin just by double clicking on an icon on your Desktop.
Right Click on your Desktop and select Create New -> Empty File. ↳ Screenshot
Enter a file name, make sure it ends with .sh, and click on OK. I've chosen for Reddcoin.sh. ↳ Screenshot The file will be created on your Desktop. ↳ Screenshot
Add the command to start Reddcoin to the file.
Right click on the file, select Leafpad (to open the file in a text editor). ↳ Screenshot
Add the following to the file and save the file: sudo /media/rpi3b/usb/reddcoin/src/qt/reddcoin-qt ↳ Screenshot
To be able to execute the shell script (.sh), it has to have 'execute permissions'.
Right click on the file, and select Properties. ↳ Screenshot
Click on the Permissions tab.
For Execute, select Anyone, and click on OK. ↳ Screenshot
To start Reddcoin Core, double click on the file. A new window will pop-up, asking you what you want. Execute in Terminal is what we want, so you can click on enter. ↳ Screenshot Reddcoin Core will now start. Do not close the Terminal window, you can minimize it if needed.
Minimization options Adjust minimization options, so you can safely press on the X button (the close/exit button on the upper right corner).
Activate 'Minimize on close'. Settings -> Options... -> Window (tab) -> Minimize on close. ↳ Screenshot Reddcoin will still run when you click on the X button. To close/exit Reddcoin, right click on the Reddcoin icon in the system tray (bottom right corner). ↳ Screenshot
RealVNC VNC Viewer (client) and VNC Connect (server): To remote connect to the Raspberry Pi, I use VNC Viewer ad VNC Connect from RealVNC.
After your download is finished, open the file and click Install Package. ↳ Screenshot
To run the VNC Connect once:
Open [Menu] > Run, and enter: vncserver-x11 ↳ Screenshot
To auto run on startup:
Open Default applications for LXSession ([Menu] > Preferences > Default applications for LXSession). ↳ Screenshot
In LXSessions configuration, select Autostart in the menu left.
Under Manual autostarted applications, enter vncserver-x11 and click on + Add. ↳ Screenshot ↳ Screenshot
Reboot your Raspberry Pi and check if VNC Connect is started automatically after the reboot.
When VNC Connect is running, you'll see a VNC icon on the right bottom corner. Double click the icon to open VNC Connect and to see the IP address you need to enter to connect to your Raspberry Pi. ↳ Screenshot
Hey guys! I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
oVirt -> Viurtualization
Hurrcane Electric DNS -> Dynamic DNS
No-IP -> DynamicDNS
SpiceWorks -> Misc
ERPXE -> Backup
Homelab Dashboard Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
Pi-hole Prevents ads from even reaching you by blocking dns queries. Works as a relay between your isp's dns server (or whichever you choose). Can also work as a local dns.
RetroPie From their website: The RetroPie Project is a collection of works that all have the overall goal to turn the Raspberry Pi into a dedicated retro-gaming console.
raspnode Tutorials for installing cryptocurrency nodes on a Raspberry Pi. Participate in the Bitcoin, Litecoin, or Ethereum network. Full nodes, SPV wallets, cold storage, offline transaction signing.
flightradar24 is a flight tracking service that provides you with real-time info about thousands of aircraft around the world.
The Plane Finder is the easiest and most accurate way to share your ADS-B and MLAT data with us.
PiAware is the world's largest flight tracking data company and provides over 10,000 aircraft operators and service companies as well as over 12,000,000 passengers with global flight tracking solutions.
CouchPotato is an wesome PVR for usenet and torrents. Just fill in what you want to see and CouchPotato will add it to your "want to watch"-list. Every day it will search through multiple NZBs & Torrents sites, looking for the best possible match. If available, it will download it using your favorite download software.
SickBeard is a PVR for newsgroup users (with limited torrent support). It watches for new episodes of your favorite shows and when they are posted it downloads them, sorts and renames them, and optionally generates metadata for them.
SickRage Automatic Video Library Manager for TV Shows. It watches for new episodes of your favorite shows, and when they are posted it does its magic.
FlexGet is a multipurpose automation tool for content like torrents, nzbs, podcasts, comics, series, movies, etc.
sabnzbd makes Usenet as simple and streamlined as possible by automating everything we can.
nzbget is a binary downloader, which downloads files from Usenet based on information given in nzb-files.
headphones is an automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent and Blackhole.
= Virtualization =
XenServer is an open source project and community managed by Citrix. The project develops open source software for securely running multiple operating systems and applications on a single device, enabling hardware consolidation and automation to reduce costs and simplify IT management of servers and applications.
Proxmox is a complete open source server virtualization management software. It is based on KVM virtualization and container-based virtualization and manages KVM virtual machines, Linux containers (LXC), storage, virtualized networks, and HA clusters.
VirtualBox is a general-purpose full virtualizer for x86 hardware, targeted at server, desktop and embedded use.
SmartOS is a hypervisor lean enough to run entirely in memory, powerful enough to run as much as you want to throw at it.
KVM is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).
oVirt is free, open-source virtualization management platform. It was founded by Red Hat as a community project on which Red Hat Enterprise Virtualization is based.
= Monitoring =
Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.
OMD avoids the tedious work of manually compiling and integrating Nagios addons while at the same time avoiding the problems of pre-packaged installations coming with your Linux distribution
Pandorafms is the most flexible monitoring software in the market. With a single tool, Pandora FMS can monitor everything: infrastructure, applications, services, and business progress.
PRTG Monitoring is a network monitoring software that is powerful and easy to use. Free for 100 sensors.
Zabbix is the ultimate enterprise-level software designed for real-time monitoring of millions of metrics collected from tens of thousands of servers, virtual machines and network devices.
Observium is a low-maintenance auto-discovering network monitoring platform supporting a wide range of device types, platforms and operating systems.
LibreNMS is a fully featured network monitoring system that provides a wealth of features and device support.
Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality.
Munin surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface.
ZenOSS is an award winning, open source monitoring product that automatically discovers resources, without the use of agents, and provides visibility across all aspects of your IT environment whether physical, virtual or in the cloud.
AlienVault OSSIM is an open source security information and event management system. OSSIM combines Snort, OpenVAS, Nagios, OSSEC, and other tools into a single portal with log collection and correlation.
Graylog Centralize and aggregate all your log files for 100% visibility. Use our powerful query language to search through terabytes of log data to discover and analyze important information.
= Media Center =
Plex organizes your video, music, and photo collections and streams them to all of your screens.
Kodi, if a free and open source (GPL) software media center for playing videos, music, pictures, games, and more.
Emby brings all of your home videos, music, and photos together into one place.
OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, RSync, BitTorrent client and many more.
PlexPy is a tool to easily monitor and receive notify playback events from Plex.
MediaGoblin is a free software media publishing platform that anyone can run. You can think of it as a decentralized alternative to Flickr, YouTube, SoundCloud, etc.
= Remote access =
Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC and RDP.
Chrome Remote Desktop allows users to remotely access another computer through Chrome browser or a Chromebook.
mRemoteNG is a fork of mRemote, an open source, tabbed, multi-protocol, remote connections manager. mRemoteNG adds bug fixes and new features to mRemote.
= VOIP =
Elastix is an Open Source Software to establish Unified Communications. About this concept, Elastix goal is to incorporate all the communication alternatives, available at an enterprise level, into a unique solution.
Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server.
FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX)
= Networking =
pfSense is an open-source firewall/router computer software distribution based on FreeBSD.
Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license.
SophosUTM Complete Unified Threat Management protection for your network, web, email, applications, and users.
SohposXG is a fully equipped software version of the Sophos XG firewall, available at no cost for home users.
feeloadbalancer is offering the Free LoadMaster to help small companies and developers by providing them with a robust and proven load balancing option.
NetWorx is a simple and free, yet powerful tool that helps you objectively evaluate your bandwidth consumption situation.
VyOS is a community fork of Vyatta, a Linux-based network operating system that provides software-based network routing, firewall, and VPN functionality.
freeIPA is an integrated Identity and Authentication solution for Linux/UNIX networked environments.
Metiix Blockade Network-Wide Malware, Tracking, & Ad Blocking (Can also run on Raspbian)
OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol that utilizes SSL/TLS for key exchange.
Smoothwall is a Free and Open Source firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface.
ClearOS is an operating system for your Server, Network, and Gateway systems. It is designed for homes, small to medium businesses, and distributed environments. ClearOS is commonly known as the Next Generation Small Business Server, while including indispensable Gateway and Networking functionality.
DriveBender is the class leading storage pooling technology for Microsoft Windows. Developed by Division-M, Drive Bender allows for file redundancy via file duplication, and unlike RAID, does not require any proprietary drive format or complicated setup. (Now free)
CloudExtender is local Windows storage, powered by the cloud... with optional, state of the art TNO (trust no one) file encryption built right in. Create a Windows drive or folder that maps directly to your favorite storage platform in minutes.
SnapRAID is a backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures.
flexRAID is a family of storage data protection products that provide great flexibility and various innovations. The current product line includes: RAID over File System (RAID-F) Transparent RAID (tRAID).
freeNAS is an operating system that can be installed on virtually any hardware platform to share computer data storage over a computer network.
Rockstor is a free and open source NAS(Network Attached Storage) solution. It's a software solution and can be installed on any hardware or a virtual machine satisfying these minimum requirements.
nas4free The NAS4Free operating system can be installed on virtually any hardware platform to share computer data storage over a computer network.
Xpenology is the name of a Linux boot image, which allows to run operating system Sinology DSM on almost any hardware (not just Synology).
owncloud is a self-hosted file sync and share server.
openFiler provides a simple way to deploy and manage networked storage.
openATTIC openATTIC combines open source storage tools in such a way that their entire functionality can be managed through a central interface. Carefully matched components ensure both stability and security. Its open interface enables you to integrate openATTIC to provisioning, monitoring and backup systems.
= Cameras =
iSpy is the world’s most popular open source video surveillance application.
ZoneMinder is intended for use in single or multi-camera video security applications.
motioneyeOS is a Linux distribution that turns your single board computer into a video surveillance system.
Blue Iris is security camera manager. It's not free (60$ for the full version) but it was highly recommended and there doesn't seem to be any comparable free alternatives.
= Documentation =
DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
gollum is a simple, Git-powered wiki with a sweet API and local frontend.
BookStack is a simple, self-hosted, easy-to-use platform for organising and storing information.
phpIPAM is an open-source web IP address management application (IPAM).
Paperwork aims to be an open-source, self-hosted alternative to services like Evernote ®, Microsoft OneNote ® or Google Keep ®.
afraid Free DNS Hosting, Dynamic DNS Hosting, Static DNS Hosting, subdomain and domain hosting.
No-IP's mission is to provide useful, reliable and powerful services that help home users, small and large businesses and even fortune 500 companies take control over all aspects of their DNS and domain services.
xapi-back is a simple backup tool for XenServer or XCP – xen hypervisors using xapi toolstack. xapi-back is a command line tool with simple and clear interface (command + options). Tool is written in python.
how to shibecoin v rich in minutes much instruct so simple any doge can do
UPDATE 1/21/14: I'm not updating this guide anymore. Most of the steps should still work though. See the wiki or check the sidebar for updated instructions. Before you do anything else, you need to get a wallet. Until there's a secure online wallet, this means you need to download the dogecoin client. Now open the client you just downloaded. You'll be given a default address automatically, and it should connect to peers and start downloading the dogechain (aka blockchain in formal speak). You'll know because there will be a progress bar at the bottom and at the lower right there should be a signal strength icon (TODO: add screenshots). If you've waited 2 or 3 minutes and nothing is happening, copy this:
And paste it into a new text file called dogecoin.conf, which you then place into the dogecoin app directory.
On Windows this is C:\Users\[YOUR_USER]\AppData\Roaming\DogeCoin
On Macs it's ~/Library/Application Support/DogeCoin
Now restart your qt client and the blockchain should start downloading in about 1-2 minutes. Once it finished downloading, you're ready to send and receive Dogecoins!
Decide how you want to get Dogecoin. Your options are:
I'll go into detail about each of these. I'm currently writing this out. I'll make edits as I add sections. Suggestions are welcome.
Mining is how new dogecoins are created. If you're new to crypto currencies, read this. To mine (also called "digging"), a computer with a decent GPU (graphics card) is recommended. You can also mine with your CPU, but it's not as efficient.
These instructions cover only Windows for now. To mine, you'll need to figure out what GPU you have. It'll be either AMD/ATI or Nvidia. The setup for both is approximately the same.
Step One: Choose a pool
There's a list of pools on the wiki. For now it doesn't really matter which one you choose. You can easily switch later. NOTE: Youcanmineintwoways.Solominingiswhereyouminebyyourself.Whenyoufindablockyougetallthereward.Poolminingiswhenyouteamupwithotherminerstoworkonthesameblocktogether.Thismakesitmorelikelythatyou'llfindablock,butyouwon'tgetallofit,you'llhavetosplititupwithothersaccordingtoyourshareofthework.Poolminingisrecommendedbecauseitgivesyoufrequentpayouts,becauseyoufindmoreblocks.Thelargerthepoolyoujoin,themorefrequentthepayouts,butthesmallertherewardyouget. Overalongperiodoftimethedifferencebetweenpoolandsolomininggoesaway,butifyousolomineitmightbemonthsbeforeyougetanycoins.
Step two: Set up pool account
The pool you chose should have a getting started page. Read it and follow the instructions. Instructions vary but the general idea is:
Create an account
Create a worker under the account
Grab the mining URL (usually on the getting started page)
Setup your cash out options in your account settings by entering one of your wallet's receiving addresses
When you're done with this, you'll need to know:
Your account, worker name, and worker password
The mining (stratum) URL (usually the pool's URL followed by a port)
Step three: Download mining software
For best performance you'll need the right mining software.
Create a text file in the same folder as your miner application. Inside, put the command you'll be running (remove brackets). For AMD it's cgminer.exe --scrypt -o stratum+tcp://: -u -p For Nvidia it's cudaminer.exe -o stratum+tcp://: -O : Substitute the right stuff in for the placeholders. Then on the next line of the text file type pause. This will let you see any errors that you get. Then save the file with any name you want, as long as the file extension is .bat. For example mine_serverName.bat.
Step five: Launch your miner
Just open the .bat file and a command line window should pop up, letting you know that the miner is starting. Once it starts, it should print out your hash rate. If you now go to the pool website, the dashboard should start showing your hashrate. At first it'll be lower than what it says in the miner, but that's because the dashboard is taking a 5 minute average. It'll catch up soon enough. NOTE: Anormalhashrateisbetween50Kh/suptoeven1Mh/sdependingonyourGPU.
You're now mining Dogecoins
That's it, nothing more to it.
CPU mining isn't really recommended, because you'll be spending a lot on more on power than you'd make from mining Dogecoin. You could better spend that money on buying Dogecoin by trading. But if you have free electricity and want to try it out, check out this informative forum post.
Trading has been difficult so far, but Dogecoin just got added to a few new exchanges. If you don't have a giant mining rig, this is probably the best way to get 100k or more dogecoins at the moment. I'll write up a more complete guide, but for now check out these sites:
Faucets are sites that give out free coins. Usually a site will give out somewhere between 1 and 100 Dogecoin. Every site has its own time limits, but usually you can only receive coins once every few hours, or in some cases, days. It's a great way to get started. All you do is copy your address from the receive section of your wallet and enter it on some faucet sites. Check out /dogecoinfaucets for more. If you go to each site on there you might end up with a couple hundred Dogecoin!
This method is pretty straightforward. Post your receiving address, and ask for some coins. Such poor shibe. The only catch is, don't do it here! Please go to /dogecoinbeg.
Other redditors can give you Dogecoin by summoning the tip bot, something like this: +dogetipbot 5 doge This might happen if you make a good post, or someone just wants to give out some coins. Once you receive a tip you have to accept it in a few days or else it'll get returned. Do this by following the instructions on the message you receive in your inbox. You reply to the bot with "+accept". Commands go in the message body. Once you do that, the bot will create a tipping address for you, and you can use the links in the message you receive to see your info, withdraw coins to your dogecoin-qt wallet, see your history, and a bunch of other stuff. As a bonus, so_doge_tip has a feature where you can get some Dogecoins to start with in exchange for how much karma you have. To do this, send the message "+redeem DOGE" to so_doge_tip. You'll need to create a tipping account if you don't have one. If you want to create a tipping account without ever being tipped first, message either of the bots with "+register" and an address will be created for you.
1/21/14 - Added note about this thread no longer being updated
1/21/14 - Changed wallet links to official site
12/27/13 - Added 1.3 wallet-qt links
12/21/13 - Added new windows 1.2 wallet link
12/20/13 - Fixed +redeem text
12/18/13 - Added short blurb on trading.
12/18/13 - Updated cudaminer to new version (cudaminer-2013-12-18.zip).
What is up with all these Bitcoin devs who think that their job includes HARD-CODING CERTAIN VALUES THAT ARE SUPPOSED TO BE USER-CONFIGURABLE (eg: "seed servers")?
Recently, the developer of SegWit2x / BTC1, Jeff Garzik, caused some controversy by hard-coding the "seed servers" which Bitcoin uses to first start hunting for "peers". Worse than that: apparently one of the "seeds" is a company he started, variously named Chainalysis / Skry / Bloq - which apparently specializes in de-anonymizing Bitcoin transactions and performing KYC/AML - and which also has apparently entered into agreements with Interpol. Seriously, WTF??? This is what "Bitcoin devs" still consider to be part of their "job" - hard-coding parameters like this, which affect everyone else on the network - and which could easily be "exposed" to be made user-configurable - instead of being baked into the source code and requiring a friggin' recompile to change??? This recent event has refocused attention on the fact all these past years, most of these seed servers in "the" existing (legacy) client running on most of the network have _also been hard-coded - to domains under the control of "devs associated with Blockstream".
I don't like the list of seed servers in Bitcoin Core Pieter Wuille - does not support BIP148 - works for Blockstream Matt Corallo - does not support BIP148 - works for Blockstream Luke Dashjr - supports BIP148 - works for Blockstream Christian Decker - supports BIP148 - works for Blockstream Jonas Schnelli - supports BIP148 Peter Todd - supports BIP148 - worked for Samson Mow who works for Blockstream
...and the key thing with that is being able to control what nodes a node connects to can be a very powerful tool to attack new nodes, as it lets you prevent a node from learning about the valid chain with the most work.
4 out of 5 people running the bitcoin networks seed servers are directly associated with Blockstream! I don't even believe that Blockstream is actually plotting an evil, forceful takeover of bitcoin using the seed servers. However it beautifully counteracts Adam's "decentralization is everything" arguments. What is most troublesome to me, is that this simple information is not allowed to appear on r\bitcoin at all.
https://np.reddit.com/btc/comments/6n8vqc/the_corporate_takeover_of_bitcoin_illustrated_in/ Seriously? Bitcoin is almost 9 years old - and most people are still running clients which use hard-coded values (which require an inconvenient recompile to reconfigure) for the "seed servers"?? Maybe this is, in some sense, part of the reason why people like BlueMatt and Luke-Jr and Pieter Wiulle think they can lord it over us and tell everyone else what to do? ...because they have quietly (and unfairly / incompetently) hard-coded their own friggin' server domain names directly into everyone else's client code, as our "seed servers"? Is the low level of "quality" we - as a community - have become accustomed to from our devs? Do other clients (Bitcoin Classic, Bitcoin Unlimited and Bitcoin ABC) also gratuitously hard-code their "seed servers" like this? Here's a post from a year ago regarding "seed servers" in Classic:
How come "classic" uses the same alert keys/DNS seeds as Core?
https://np.reddit.com/btc/comments/44atsp/how_come_classic_uses_the_same_alert_keysdns/ Meanwhile, here's the main question: Why are any "serious" Bitcoin clients still "gratuitously" hard-coding any values like this? Why has our "ecosystem" / "community" not naturally evolved to the point where we have some public "wiki" pages listing all the "good" (community-recognized, popular) seed servers - and every user configures their own client software by choosing who they want from this list? (Maybe because we've been distracted by bullshit for these past few years, fighting with these very same devs because they've refused provide any support for users who want bigger blocks?) What would users have to do if (God forbid) something were to happen to the servers of those 4-5 seed servers which are currently hard-coded into nearly everyone's clients? In that situation (assuming some "new" seed servers quickly appeared) people would be have two options:
Edit their C++ source code and download/install a (trusted, verified) C++ compiler (if they don't already have one), and recompile the friggin' code; or
Wait until new binaries got posted online - and download them (and verify them).
Seriously? This unnecessary "centralization point" (or major inconvenience / bottleneck) has been sitting in our code this entire time - while these supposedly knowledgeable devs keep beating us over their head with their mantra of "decentralization" - which they have actually been doing so little to maximize?
Psycho-Socio-Economic Side Bar Serious (but delicate/senstive) question: How many of these "devs" have developed (possibly unconscious?) behaviors in life where they try to make users dependent on them? "Vendor lock-in" is a thing - a very bad thing, which certain Bitcoin devs have exhibited a tendency to inflict on users - in many cases due to rather obvious (psychological, social, and/or economic) reasons. We should gently (but firmly) reject these tendencies whenever any dev exhibits them.
Our community should expect and demand an accessible, user-friendly interface for all user-configurable parameters - to maximize decentralization and autonomy
In "command-line" versions of the client program, these kind of parameters should be:
in a separate config file - using some ultra-simple, standard format such as YAML or JSON
also configurable via options (eg, --seed-server) upon invocation on the command-line
In GUI versions version of the client program (using some popular cross-platform standard such as Qt, HTML, etc.) these kind of parameters should be exposed as user-configurable options.
Yes, these user-configurable values for things like "seed servers" (or "max blocksize") could come pre-configured to "sensible defaults - so that the software will work "out of the box" (immediately upon downloading and installing) - with no initial configuration required by the user. Yes: Even the blocksize has always been user-configurable - but most users don't know this, because most devs have been hiding this fact from us. Three recent posts by u/ForkiusMaximus explained how Adjustable-Blocksize-Cap (ABC) Bitcoin clients shatter this illusion:
Adjustable-blocksize-cap (ABC) clients give miners exactly zero additional power. BU, Classic, and other ABC clients are really just an argument in code form, shattering the illusion that devs are part of the governance structure.
https://np.reddit.com/btc/comments/602vsy/clearing_up_some_widespread_confusions_about_bu/ Note about Bitcoin ABC vs Bitcoin Unlimited: There is a specific new Bitcoin client called Bitcoin ABC, which functions similar to Bitcoin Unlimited - with the important difference that Bitcoin ABC is _guaranteed to hard-fork to bigger blocks on August 1_. (Please correct me if I'm wrong about this. Documentation for the behavior of these various hard-forks is currently still rather disorganized :-) All serious devs should be expected to provide code which does not require a "recompile" to change these "initial, sensible" default parameters. I mean - come on. Even back in the 80s people had "*.INI" files on DOS and Windows. Nearly all users understand and know how to set user-configurable values - for decades. How many people are familiar with using a program which has a "Preferences" screen? (Sometimes you may have to close and re-open the program in order for your new preferences to take effect.) This is really basic, basic functionality which nearly all software provides via a GUI (and or config file and/or command-line options). And nearly all devs have been offering this kind of functionality - in either command-line parameters, config files, and/or graphic user interfaces (GUIs). Except most Bitcoin devs. The state of "software development" for Bitcoin clients seems really messed up in certain ways like this. As users, we need to start demanding simple, standard features in our client software - such as accessible, user-friendly configurability of parameter values - without the massive inconvenience of a recompile. What is a "Bitcoin client"? After nearly 9 years in operation, our community should by now have a basic concept or definition of what a "Bitcoin client" is / does - probably something along the lines of:
A Bitcoin client is a device for reading (and optionally appending to) the immutable Bitcoin Blockchain.
Based on that general concept / definition, a program which does all of the above and also gratuitously "hard-codes" a bunch of domain names for "seed servers" is not quite the same thing as a "a Bitcoin client". Such an "overspecialized" client actually provides merely a subset of the full functionality of a true "Bitcoin client", eg:
An "overspecialized" client only enables connecting to certain "seed servers" upon startup (in accordance with the "gratuitous opinion" of the dev who (mis)translated the community's conceptual specifications to C++ code)
An "overspecialized" client only enables mining blocks less that a certain size (in accordance with the "gratuitous opinion" of the dev who (mis)translated the community's conceptual specifications to C++ code)
One of the main problems with nearly all Bitcoin clients developed so far is that they are gratuitously opinionated: they "gratuitously" hard-code particular values (eg, "max blocksize", "seed servers") which are not part of the whitepaper, and not part of the generally accepted definition of a "Bitcoin client". This failure on the part of devs to provide Bitcoin clients which behave in accordance with the community's specification of "Bitcoin clients" is seriously damaging Bitcoin - and needs to be fixed as soon as possible. Right now is a good opportunity - with so many new Bitcoin clients popping up, as the community prepares to fork. All devs working on various Bitcoin client software offerings need to wake up and realize that there is about to be a major battle to find out which Bitcoin client software offering performs "best" (in the user-interface sense - and ultimately in the economic sense) at:
reading (and optionally appending to) the immutable Bitcoin Blockchain
The Bitcoin client software offerings which can optimally (and most simply and securely :-) "satisfy" the above specification (and not merely some gratuitously overspecialized "subset" of it) will have the most success.
./bitcoin-qt Command-line arguments . These commands are accurate as of Bitcoin Core version v0.14.0. Command Description -? Print this help message and exit -version : Print version and exit -alertnotify=<cmd> Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message) -blocknotify=<cmd> Execute command when the best block changes (%s in ... $ bitcoin-qt --help: Bitcoin-Qt version v0.7.2-beta: Usage: bitcoin-qt [command-line options] Options:-? This help message-conf=<file> Specify configuration file (default: bitcoin.conf)-pid=<file> Specify pid file (default: bitcoind.pid)-gen Generate coins-gen=0 Don't generate coins Bitcoin Core version v0.15.1 (64-bit) Usage: bitcoin-qt [command-line options] Options: -? Print this help message and exit -version Print version and exit -conf=<file> Specify configuration file (default: bitcoin.conf) -datadir=<dir> Specify data directory -dbcache=<n> Set database cache size in megabytes (4 to 16384, default: 450) -loadblock=<file> Imports blocks from external blk000??.dat ... The default fee policy can be overridden using the -mintxfee and -minrelaytxfee command-line options, but note that we intend to replace the hard-coded fees with code that automatically calculates and suggests appropriate fees in the 0.9 release and note that if you set a fee policy significantly different from the rest of the network your transactions may never confirm. Bitcoin-Qt changes ... While you have bitcoind or bitcoin-qt running with the -server option, you can then use bitcoin-cli to run commands. It's part of the bitcoind package. If you have your conf file in a custom directory you'll have to specify that to bitcoin-cli as well, otherwise it should just work.
Why the blocksize limit keeps BITCOIN free and decentralized
Bitcoin Core is a quick deployment official Bitcoin cryptocurrency client. Bitcoin Core Server for Windows 2016 Bitcoin Core is an open-source software that serves as a bitcoin node (the set of ... bitcoin p=np forum.bitcoin. pl bitcoin qt bitcoin qr code bitcoin qt synchronizing with network bitcoin qt wallet location bitcoin qt import wallet bitcoin qt synchronizing with network slow ... We cover chapter 3 of Andreas Antonopoulos' book Mastering Bitcoin. Featured are examples of bitcoin-cli commands, and simple Python scripts to interact with the bitcoin blockchain. Referenced links: QML Beginners: https://www.udemy.com/course/qml-for-beginners/?referralCode=3B69B9927B587BBF40F1 Qt Core Beginners: https://www.udemy.com/course/qt-core-for-... Learning Bitcoin 4 - Bitcoin Command Line Helper - Part 1.