Open /etc/ssh/sshd_config using vi editor vi /etc/ssh/sshd_config Then uncomment the line #Banner /etc/motd save & exit Now create some banner text in /etc/motd like This computer system is for authorized users only. All activity is logged and regulary checked by systems personal. Individuals using this system without authority or in excess of their authority are subject to having all their services revoked. Any illegal services run by user or attempts to take down this server or its services will be [...]
