rothkj1022/Change SSH Port on CentOS 7.md

## Change SSH Port on CentOS 7.md

      
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              Change SSH Port on CentOS 7.md
            
          
    Change SSH Port on CentOS 7

Back up sshd_config
$ sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak

Edit config to change port and disallow password auth
$ sudo nano /etc/ssh/sshd_config

Find the following line:
# Port 22

and change to something like:
Port 2244

Find the folling line:
#PermitRootLogin yes

and change to:
PermitRootLogin no

Exit and save.
Reload sshd and DO NOT EXIT YOUR SESSION
$ systemctl reload sshd

Open a new terminal window. In the new window, we need to begin a new connection to our server, using the new port number
# ssh user@yourserver.domain.com -p 2244

If you are able to connect, you may close your original terminal session.  If not, recheck your sshd_config.
If you don't want to type in your port number in the future for connections to this server, you may modify your .ssh/config file to add something like the following:
Host yourserver.domain.com
  Port 2244