SSH Login Banner

Want a custom banner or warning message when a user connects via SSH on your server?

Skill level: Beginner
OS: Linux
Prerequisites: Understand how to edit a file with vim or other text editor in Linux.
Dependencies: Config files:
/etc/ssh/sshd_config /etc/issue.net

1. Open /etc/ssh/sshd_config and look for the line with Banner in it and point it to your /etc/issue.net file:

Banner /etc/issue.net  

2. Generate a banner:
   figlet -f banner [string]
3. Copy and paste your banner into /etc/issue.net to add your message.
4. Restart sshd:
   sudo -i service sshd restart

Now connect to your box: