Creating the cardano user

Create a dedicated cardano user with sudo privileges.

Add the user

Create a system user named cardano:

sudo adduser cardano

You will be prompted for a password and optional user details.

Grant sudo access

Add the user to the sudo group:

sudo usermod -aG sudo cardano

If the user was created without a password (e.g., via the setup script), enable passwordless sudo:

echo 'cardano ALL=(ALL) NOPASSWD:ALL' | sudo tee /etc/sudoers.d/cardano
sudo chmod 440 /etc/sudoers.d/cardano

Switch to the cardano user

sudo su - cardano

Verify you are logged in correctly:

whoami

Expected output: cardano