The default SSH port on all Operating Systems is port 22. For security measures, KnownHost's servers are configured to use port 2200.
The server's SSH configuration file is located here:
ssh root@<ip address> -p 2200
nano -c /etc/ssh/sshd_config
You should see that it was stopped and started successfully:
Stopping sshd: [ OK ] Starting sshd: [ OK ]
# netstat -tulpn |grep sshd tcp 0 0 0.0.0.0:2222 0.0.0.0:* LISTEN 5672/sshd tcp 0 0 :::2222 :::* LISTEN 5672/sshd
Now when connecting to your server use the newly configured port number.