Is it possible to display a custom message at login?
The Answer is yes. To do that
Edit the file “/etc/issue.net“.
sudo vi /etc/issue.net
Authorized access only! All actions Will be monitored and recorded
Edit the file “/etc/ssh/sshd_config“.
Remove the # before “Banner /etc/issue.net”.
sudo service sshd restart …or… sudo /etc/init.d/sshd restart
Edit the file “/etc/motd”
If you are not authorized to access or use this system, disconnect now!