First of all we need to create directories for keys. To do it enter the following:

mkdir ~/keys

After this we will need a link to download our keys – this link can be found in your email (in case you are eligable to participate in the testnet). In order to download keys, enter the following:

wget -O ~/keys/keys.zip %url_from_email%

Result should be the following:

wget -O ~/keys/keys.zip https://storage.googleapis.com/testworldkeys/asloidfo3129021hfs8982j.zip

Then we need to unzip keys, to do this enter the following:

apt install unzipcd ~/keysunzip keys.zip

As a result 2 files should appear in the folder, names should be in the following format:

extra_fish_account_%number%extra_fish_account_%number%.pub

Let’s rename them for our convenience:

To do it, type the following:

mv extra_fish_account_%number% mina-walletmv extra_fish_account_%number%.pub mina-wallet.pubcd

Now let’s set access rights for our keys:

chmod 700 $HOME/keyschmod 600 $HOME/keys/mina-wallet

Now let’s set variables KEYPATH and MINA_PUBLIC_KEY. For the convenience let’s set them in .bashrc.

echo 'export KEYPATH=$HOME/keys/mina-wallet' >> $HOME/.bashrcecho 'export MINA_PUBLIC_KEY=$(cat $HOME/keys/mina-wallet.pub)' >>    $HOME/.bashrcsource ~/.bashrc

After that we need to download the list of peers:

wget -O ~/peers.txt https://raw.githubusercontent.com/MinaProtocol/coda-automation/bug-bounty-net/terraform/testnets/testworld/peers.txt

As the first step here we need to open server’ ports. Usually they are already opened, but let’s double check:

sudo apt install ufwsudo ufw allow 22sudo ufw allow 8302sudo ufw allow 8303sudo ufw enable

Then let’s set-up the node itself:

sudo apt-get remove -y mina-testnet-postake-medium-curvesmkdir .coda-configsudo apt-get updatesudo apt-get install -y apt-transport-https ca-certificatesecho "deb [trusted=yes] http://packages.o1test.net release main" | sudo tee /etc/apt/sources.list.d/mina.listsudo apt-get updatesudo apt-get install -y curl mina-testnet-postake-medium-curves=0.3.3-3ef8663 --allow-downgrades

Let’s check the node version using coda version command, the version should be

[DIRTY]3ef86631e3a38150b5092faec47da144b0a46020

, in case it differs either:

• This guide is outdated, the actual version you can always check in the official project docs
• You perform some of the previous steps incorreclty, retry from the sudo apt-get remove -y mina-testnet-postake-medium-curves step.

Congatz! You sucessfully set-up a MINA node.

Snark stopper is for those who set Block Producer and Snark worker on the same server.

Snark worker uses all processing resources available, but this script stops snark worker in case we are close to block producing and resumes it when block producing is over.

screen -S mina-snark-stoppersudo apt install jq git python3-venvgit clone https://github.com/c29r3/mina-snark-stopper.gitcd mina-snark-stopperpython3 -m venv venvsource ./venv/bin/activatepip3 install -r requirements.txt

Now let’s setup:

nano $HOME/mina-snark-stopper/config.yml

Change attributes WORKER_PUB_KEY and WORKER_FEE:

WORKER_PUB_KEY: YOUR_PUBLIC_KEY replace YOUR_PUBLIC_KEY with$MINA_PUBLIC_KEYWORKER_FEE: 1 replace 1 with 0.4-0.5

Launch:

venv/bin/python3 snark-stopper.pyCtrl + A, then D

Now let’s check the script status:

screen -rd mina-snark-stopper

In case of any errors check the following:

• • You have the latest Snark Stopper version installed
    • • In order to do this enter the following:

    cd ~/mina-snark-stopper
    git pull

    • If it downloaded nothing, then the version you have the latest version, itherwise enter the following:

      venv/bin/python3 snark-stopper.py

      After this your script should work properly.

  • Your Snark Worker is working. In order to check it, enter the following:

coda client status

In case it’s not there, execute the following:

coda client set-snark-worker -address $MINA_PUBLIC_KEY

After this your script should work correctly, otherwise please consult the development team.

Exit the view:

Ctrl + A, then D

If you have:

• Node status ‘Synced’
• The latest node version (type coda version command, it should be the same as in the header of this guide and/or official project documentation)
• Snark Stopper is working (in case you have it)

You have a working Mina node, congratulations!