As we moved our NethServer to cloud and it has RED and GREEN nics now.
One thing we realize is root user is allowed to do ssh from RED. We do not want to allow this. We would like a regular user to be able to ssh from RED and use su to become root. We do not want regular users to to use sudo either.
Is it possible to use GUI and block root access? Or, we need to modify main sshd config file manually and block root access from both GREEN and RED?