A question about SSH port

[hack3rcon]

Hello,
Fail2ban uses port = ssh by default. If I change the SSH port from 22 to another number, do I have to change the port value to that number as well?

Thank you.

[sebres]

It depends:

• if you changed it in /etc/services then very probably not, since ssh will map to different port.
• if you changed it in /etc/sshd_config only, then definitely yes, since ssh will still map to 22.

A restart of jail or fail2ban is expected in any case (like a restart of sshd).