# Auto login root on tty1 | |
sed -i 's|/sbin/getty|/sbin/getty --autologin root|g' /etc/init/tty1.conf | |
# Disable password root login | |
usermod -p '!' root | |
# Disable SSH password authentication and permit root login | |
sed -i 's|[#]*PasswordAuthentication yes|PasswordAuthentication no|g' /etc/ssh/sshd_config | |
sed -i 's|[#]*PermitRootLogin no|PermitRootLogin yes|g' /etc/ssh/sshd_config |