Part 4. Installing Samourai Dojo

Prerequisites.

• Completed "Dojo Node Guide", Parts 1-3.

Introduction

Dojo is a software tool that enhances the privacy and security of Samourai Wallet users. The Dojo software is a personally hosted full-node server backend that Samourai Wallet users can connect to, enhancing privacy by eliminating the need to connect with a public server/node.

Running a Dojo server is essential for those wanting to utilize the privacy benefits achieved through Samourai Wallet's post-mix spending tools and powerful Whirlpool CoinJoin implementation.

Create Dojo User

Creating a segregated user account for Dojo is beneficial for security.

sudo useradd -s /bin/bash -d /home/dojo -m -G sudo dojo

Set a password for your new user.

sudo passwd dojo

Provide the user "dojo" with the required permissions.

sudo usermod -aG docker dojo

Restart the device.

sudo reboot

Once the system has successfully rebooted, SSH back in as user "dojo."

Download Dojo

Download the latest version of Dojo from the official Samourai repository.

torsocks wget https://code.samourai.io/dojo/samourai-dojo/-/archive/master/samourai-dojo-master.zip

Unzip the downloaded archive.

unzip samourai-dojo-master.zip

Create a directory for Dojo.

mkdir ~/dojo-app

Move the unpackaged files to the new directory.

mv ~/samourai-dojo-master/* ~/dojo-app/

Remove the empty archive & folder.

rm -r samourai-dojo-master && rm samourai-dojo-master.zip

Configure Dojo

Multiple configuration files need to be modified before initializing Dojo.

cd ~/dojo-app/docker/my-dojo/conf/

Open "bitcoind.conf".

nano docker-bitcoind.conf.tpl

Edit as follows.

####edit to your core rpc username & password
BITCOIND_RPC_USER=dojorpc
BITCOIND_RPC_PASSWORD=dojorpcpassword

####change
BITCOIND_INSTALL=on

##to
BITCOIND_INSTALL=off

####edit to your nodes IP
BITCOIND_IP=172.28.1.5

####change
BITCOIND_RPC_PORT=28256

##to
BITCOIND_RPC_PORT=8332

####change
BITCOIND_ZMQ_RAWTXS=9501

##to
BITCOIND_ZMQ_RAWTXS=28333

####change
BITCOIND_ZMQ_BLK_HASH=9502

##to
BITCOIND_ZMQ_BLK_HASH=28334

Save and exit the file.

Open "indexer.conf".

nano docker-indexer.conf.tpl

Edit as follows.

####change
INDEXER_TYPE=addrindexrs

##to
INDEXER_TYPE=fulcrum

####edit to your nodes IP
INDEXER_IP=172.28.1.6

####change
INDEXER_RPC_PORT=50001

##to
INDEXER_RPC_PORT=50002

####change
INDEXER_BATCH_SUPPORT=inactive

##to
INDEXER_BATCH_SUPPORT=active

####change
INDEXER_PROTOCOL=tcp

##to
INDEXER_PROTOCOL=tls

Save and exit the file.

Open "mysql.conf."

nano docker-mysql.conf.tpl

Create root and user passwords for MySQL, then edit the file.

####edit lines with passwords
MYSQL_ROOT_PASSWORD=rootpassword
MYSQL_PASSWORD=password

Save and exit the file.

Open "node.conf."

nano docker-node.conf.tpl

Create "API," "admin," and "JWT" passwords, then edit the file as follows.

####add passwords here
NODE_API_KEY=myApiKey
NODE_ADMIN_KEY=myAdminKey
NODE_JWT_SECRET=myJwtSecret

####change
NODE_ACTIVE_INDEXER=local_bitcoind

##to
NODE_ACTIVE_INDEXER=local_indexer

####optional - add paynym address if enabaling auth47
NODE_PAYMENT_CODE=

Save and exit the file.

There's also the option to disable the default Bitcoin RPC Explorer. This is optional, but with an already active Mempool installation, it may not have a use case for some.

Skip this next step if wanting to leave RPC Explorer enabled.

Open "explorer.conf."

nano docker-explorer.conf.tpl

Edit the file as follows to disable RPC Explorer.

####change
EXPLORER_INSTALL=on

##to
EXPLORER_INSTALL=off

Save and exit the file.

Dojo Initialisation

Enter the Dojo install script directory.

cd ~/dojo-app/docker/my-dojo

Run the script.

./dojo.sh install

Dojo will begin the installation process.

The installation is complete once a constant stream of "node.js" logs appears. Exit the logs with "control+c ".

Dojo Maintenance Tool

The Dojo Maintenance Tool, or "DMT," is accessible only via Tor. The server's dedicated onion address can be requested with the following command.

./dojo.sh onion

The DMT can be accessed via this onion address and logged into using either the "admin key" previously created or "Auth47" if previously configured.

Once a full house of green ticks shows on the dashboard, Dojo is synched and ready to pair with a Samourai Wallet.

Select "pairing" from the DMT's menu to display the pairing QR code that can be scanned during the setup process of creating or restoring a Samourai Wallet.

If the RPC explorer is not disabled, two QR codes will be displayed. The Dojo pairing QR is the one to the left.

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Proceed to Part 5. Installing Whirlpool CLI & Firewall Config.

x86 Bitcoin Node Guide: 5. Installing Whirlpool & Firewall

Dojo x86 Bitcoin full node guide.

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