Guide for Linux

Getting Hydra up and running on your Linux system

Setup for Ubuntu 20.04 (Instructions for Aarch64 and 18.04 below)

Here is a script for Ubuntu 20.04 that you can download and run for quick setup. It has been tested to run on new ubuntu 20.04 installations. It will do all commands for you that are below and then execute the GUI. From the terminal follow these two commands: (If you prefer to set up HYDRA manually proceed to Step 1 instead.)

wget -N https://raw.githubusercontent.com/meshungina/hydra/main/install-run-gui-wallet.20.04.sh
bash install-run-gui-wallet.20.04.sh

Step 1.

Since Bitcoin PPA repository does not have a Release for Focal Fossa yet, we will need to do a few extra things.

First, make the command to update your system:

sudo apt update

And now let’s upgrade if you have packages to be upgraded:

sudo apt upgrade -y

Now let’s install the required packages.

sudo apt install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils git cmake libboost-all-dev libgmp3-dev libzmq3-dev

Now:

sudo apt install software-properties-common

Let’s compile! First let’s make a folder to compile the leveldb.

First let’s return to our home folder:

cd ~

Now create a new folder:

mkdir dev

Enter to the folder and get the source of leveldb:

cd dev
wget -N http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz

Now we’ll decompress:

tar -xvf db-4.8.30.NC.tar.gz

If you try to compile now you’ll get an error. Let’s bypass the bug:

sed -i s/__atomic_compare_exchange/__atomic_compare_exchange_db/g db-4.8.30.NC/dbinc/atomic.h

Now let’s enter to the folder, create a build folder, and configure everything to compile:

cd db-4.8.30.NC/build_unix
mkdir -p build
BDB_PREFIX=/usr/local
../dist/configure --enable-cxx --prefix=$BDB_PREFIX

After these commands lets make and install the leveldb 4.8:

make
sudo make install

Download these final packages

sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler qrencode

You’re now ready to continue to STEP 2 below.

Ubuntu 18.04

Here is a script for Ubuntu 18.04 that you can download and run for quick setup. It has been tested to run on new ubuntu 18.04 installations. It will do all the below commands for you, and then execute the GUI. From the terminal do these two commands: (If you prefer manual installation you can skip this part.)

wget -N https://raw.githubusercontent.com/meshungina/hydra/main/install-run-gui-wallet.18.04.sh
bash install-run-gui-wallet.18.04.sh

Before starting ensure that your system is up to date and has all required packages by executing:

sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils git cmake libboost-all-dev libgmp3-dev
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:bitcoin/bitcoin
sudo apt-get update
sudo apt upgrade
sudo apt-get install libdb4.8-dev libdb4.8++-dev
sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler qrencode

Step 2 - Download

Select the latest wallet version from the link below:

Latest Releases

Here you will find wallets for different types of operating systems. You will need to download the right one for your device. Please differentiate among the following builds:

Ubuntu 20.04 | Ubuntu 18.04 | Aarch64

Create a directory called Hydra and place the zipped file in it:

mkdir ~/Hydra
cd ~/Hydra

For 20.04

wget -N https://github.com/Hydra-Chain/node/releases/download/hydra_v0.18.5.1/hydra-0.18.5.1-ubuntu20.04-x86_64-gnu.zip

For 18.04

wget -N https://github.com/Hydra-Chain/node/releases/download/hydra_v0.18.5.1/hydra-0.18.5.1-ubuntu18.04-x86_64-gnu.zip

For Aarch64

wget -N https://github.com/Hydra-Chain/node/releases/download/hydra_v0.18.5.1/hydra-0.18.5.1-aarch64-linux-gnu.zip

Make sure to replace the above link with the one that matches your device and that it is the newest version available.

Step 3 - Unzip

Unzip the Hydra build. It will unzip to ~/Hydra/bin/

Your zip file may be named differently, depending on the required version

unzip -o hydra-0.18.5.1-ubuntu20.04-x86_64-gnu.zip

Step 4 - Copy config file

Note: For the current Hydra testnet you will also need to copy the latest hydra.conf file from the zip and place into the /.hydra/ folder. This is a different directory from ~/Hydra. Notice there is a dot before the name and it is lower case.

Create ~/.hydra folder then and copy the hydra.conf from the current directory into it.

mkdir ~/.hydra
cp ~/Hydra/hydra.conf ~/.hydra

You can now navigate back to where the Hydra binaries are to initialize them:

cd ~/Hydra/bin/

Step 5 - Run

The Hydra binaries will then be in ~/Hydra/bin/ where you can cd into with

cd ~/Hydra/bin/

Either run the command-line Hydra daemon (omit '-testnet' if you want to connect to mainnet):

./hydrad -daemon -testnet

and call the Hydra daemon using (omit '-testnet' if you are connected to mainnet):

./hydra-cli -testnet getinfo

Or you can run the Hydra GUI (omit '-testnet' if you want to connect to mainnet):

./hydra-qt -testnet

Linux Firewall settings

The node runs on port TCP 1334 for the Hydra testnet and port TCP 3338 for the mainnet. You may need to open the port on your router and operating system. By default Ubuntu comes with UFW firewall but it is inactive so all ports will be open. To activate the firewall and open these ports type 'sudo ufw allow 1334' and 'sudo ufw allow 3338' and then enable the firewall with 'sudo ufw enable'. If you are using SSH to connect to your server you will need to open that port as well as any other ports you need access to. If you are using a home router you will need to find out the ip address of your computer and then adjust port forwarding on your router to allow these ports. A simple way to find out your IP is by installing net-tools with 'sudo apt-get install net-tools' Once installed type ifconfig and your IP should be displayed so you can add it to your router's port forwarding page.

Links

The Webwallet can be found at: https://webwallet.hydrachain.org/

The Testnet Explorer can be viewed at: https://testexplorer.hydrachain.org/

The Testnet Faucet is at: https://faucet.hydrachain.org/

The Mainnet Explorer can be viewed at: https://explorer.hydachain.org/