Dash Masternode Tool (DMT)
- Dash Masternode Tool
- Setting up the hardware wallet type
- Connection setup
- Masternode setup
- Command line parameters
- Building the DMT executables
Dash masternodes are full nodes which are incentivized by receiving a share of the block reward as payment in return for the tasks they perform for the network, of which the most important include participation in InstantSend and PrivateSend transactions. In order to run a masternode, apart from setting up a server which runs the software, you must dedicate 1000 Dash as collateral, which is "tied up" in your node as long as you want it to be considered a masternode by the network. It is worth mentioning that the private key controlling the funds can (and for security reasons, should) be kept separately from the masternode server itself.
A server with the Dash daemon software installed will operate as a Dash full node, but before the rest of the network accepts it as a legitimate masternode, one more thing must happen: the person controlling the node must prove that they are also in control of the private key to the node's 1000 Dash collateral. This is achieved by sending a special message to the network (
start masternode message), signed by this private key.
This action can be carried out using the Dash Core reference software client. As can be expected, this requires sending 1000 Dash to an address controlled by the Dash Core wallet. After the recent increase in the value of Dash and a burst in the amount of malware distributed over the Internet, you do not have to be paranoid to conclude that keeping large amounts of funds in a software wallet is not the most secure option. For these reasons, it is highly recommended to use a hardware wallet for this purpose.
Dash Masternode Tool
The main purpose of the application is to give masternode operators (MNOs) the ability to send the
start masternode command through an easy to use a graphical user interface if the masternode collateral is controlled by a hardware wallet such as Trezor, KeepKey or Ledger.
- Sending the
start masternodecommand if the collateral is controlled by a hardware wallet
- Transferring masternode earnings safely, without touching the 1000 Dash funding transaction
- Signing messages with a hardware wallet
- Voting on proposals
- Initialization/recovery of hardware wallets seeds
- Updating of hardware wallets firmware (Trezor/KeepKey)
- Support for Dash Testnet
Supported hardware wallets
- Trezor (model One and T)
- Ledger Nano S
Setting up the hardware wallet type
- Click the
- Select the
Miscellaneoustab in the configuration dialog that appears.
- Depending on the type of your hardware wallet, select the
Ledger Nano Soption.
Most of the application features involve exchanging data between the application itself and the Dash network. To do this, DMT needs to connect to one of the full nodes on the network, specifically one which can handle JSON-RPC requests. This node plays the role of a gateway for DMT to the Dash network. It does not matter which full node node provides the service, because all nodes reach consensus by synchronizing information between each other on the Dash network.
Depending on your preferences (and skills) you can choose one of three possible connection types:
- Direct connection to a local node, for example to Dash Core running on your normal computer.
- Connection to a remote node through an SSH tunnel, if you want to work with a remote Dash daemon (like your masternode) through an SSH tunnel.
- Connection to "public" JSON-RPC nodes, if you want to use nodes provided by other users.
Here we make the following assumptions:
- You already have a server running the Dash daemon software (dashd) that you want to use as a masternode. If you don't, you will need to install and configure one first by following the guide on the Dash Wiki.
- We occasionally refer to the dashd configuration file, so it is assumed that dashd is running under a Linux operating system (OS), which is the most popular and recommended OS for this purpose.
- Your server has a public IP address that will be visible on the Internet.
- You have set up a TCP port on which your dashd listens for incoming connections (usually 9999).
Further configuration steps depend on whether you already have a masternode controlled by Dash Core which you want to migrate to a hardware wallet managed by DMT, or if you are setting up a new masternode.
Command line parameters
The application currently supports the following command-line parameters:
--data-dir: a path to a directory in which the application will create all the needed files, such as: configuration file, cache and log files; it can be useful for users who want to avoid leaving any of the application files on the computer - which by default are created in the user's home directory - and insted to keep them on an external drive
--config: a non-standard path to a configuration file. Example:
Starting a masternode
Once you set up the Dash daemon and perform the required DMT configuration, you need to broadcast the
start masternode message to the Dash network, so the other Dash nodes recognize your daemon as a masternode and add it to the payment queue.
To do this, click the
Start Masternode using Hardware wallet button.
Sequence of actions
This section describes the steps taken by the application while starting the masternode, and possible errors that may occur during the process.
The steps are as follows:
Verification that the masternode status is not already
PRE_ENABLED. If it is, the following warning appears:
If your masternode is running and you decide to send a
start masternodemessage anyway, your masternode's payment queue position will be reset.
BIP32 pathvalue is empty, DMT uses the collateral address to read the BIP32 path from the hardware wallet.
Retrieving the Dash address from the hardware wallet for the
BIP32 pathspecified in the configuration. If it differs from the collateral address provided in the configuration, the following warning appears:
The most common reason for this error is mistyping the hardware wallet passphrase. Remember that different passphrases result in different Dash addresses for the same BIP32 path.
Verification that the specified transaction ID exists, points to your collateral address, is unspent and is equal to exactly 1000 Dash. Messages in case of failure:
If you decide to continue anyway, you probably won't be able to successfully start your masternode.
Transferring masternode earnings
DMT version 0.9.4 and above allows you to transfer your masternode earnings. Unlike other Dash wallets, DMT gives you a 100% control over which unspent transaction outputs (utxo) you want to transfer. This has the same effect as the
Coin control functionality implemented in the Dash Core wallet.
Transfer funds window shows all UTXOs of the currently selected Masternode (mode 1), all Masternodes in current configuration (mode 2) or any address controlled by a hardware wallet (mode 3). All UTXOs not used as collateral are initially selected. All collateral UTXOs (1000 Dash) are initially hidden to avoid unintentionally spending collateral funds and thus breaking MN. You can show these hidden entries by unchecking the
Hide collateral utxos option.
To show the
Transfer funds window, click the
Tools menu. Then, from the popup menu choose:
Transfer funds from current Masternode's address(mode 1)
Transfer funds from all Masternodes addresses(mode 2)
Transfer funds from any address(mode 3)
Important: rows with a red font in the Confirmations column and a gray background are related to so-called coinbase transactions, that don't have the required number of confirmations to forward them. You should restrain from sending them and wait for them to receive at least 100 confirmations.
Signing messages with a hardware wallet
Changing hardware wallet PIN/passphrase
This application is written in Python 3, but requires several additional libraries to run. These libraries in turn require the installation of a C++ compiler. All in all, compiling DMT from source is not trivial for non-technical people, especially the steps carried out under Linux (though this will be documented soon).
For this reason, in addition to providing the source code on GitHub, binary versions for all three major operating systems - macOS, Windows (32 and 64-bit) and Linux - are available for download directly. The binaries are compiled and tested under the following OS distributions:
- Windows 7 64-bit
- macOS 10.13.2 High Sierra
- Linux Debian Jessie
Binary versions of the latest release can be downloaded from: https://github.com/Bertrand256/dash-masternode-tool/releases/latest.
Verification of the application binary files
Beginning with version 0.9.15, each binary file forming part of a release has a corresponding signature file that you can use to verify the authenticity of the downloaded binary file (to ensure it has not been corrupted or replaced with a counterfeit) and confirm that it has been signed by the application author (Keybase user: bertrand256).
The verification method described below is based on use of the Keybase application, so if you have not already done so, download the installer from https://keybase.io/download and install the app.
Open your OS command line terminal
Change the current directory to the folder where the DMT release files were downloaded:
After invoking the list directory command (
dirfor Windows ) you should see both the archived executable (.tar.gz, .zip) and the corresponding signature file (.asc):
<username>: ls DashMasternodeTool_0.9.15.mac.zip DashMasternodeTool_0.9.15.mac.zip.asc
Verify the signature by executing the following command:
keybase pgp verify -d DashMasternodeTool_0.9.15.mac.zip.asc -i DashMasternodeTool_0.9.15.mac.zip -S bertrand256
You should see something similar to the following if verification was successful:
▶ INFO Identifying bertrand256 ✔ public key fingerprint: 8044 DCB5 D241 349F 815F 9522 0D8F 46CA A62F 7EFD ฿ bitcoin 1BkMySjL6K72LWX82SVVmgCuZCuZ3DfuxS ฿ zcash t1byMTzteuJ8n1XUwxBzYXXV8qVv5kh3bFn ✔ "bertrand256" on reddit: https://www.reddit.com/r/KeybaseProofs/comments/688799/my_keybase_proof_redditbertrand256/ [cached 2018-01-19 10:27:37 CET] ✔ "bertrand256" on github: https://gist.github.com/781be961e33042c68d617782b0060844 [cached 2018-01-19 10:27:37 CET] Signature verified. Signed by bertrand256 1 hour ago (2018-01-19 11:46:05 +0100 CET). PGP Fingerprint: 8044dcb5d241349f815f95220d8f46caa62f7efd.