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How can I change the port ssh listens on?

You can edit sshd_config to change the port sshd listens on. The default directory for ssh configuration is /etc/ssh.
Backup the current configuration and use your favorite editor to change the Port line:

root@root [~]# cd /etc/ssh/
root@root [/etc/ssh]# cp sshd_config sshd_config.save
root@root [/etc/ssh]# vi sshd_config

#Port 22

I will set mine to port 4000. Do not forget to remove the comment (#).

Port 4000

root@root [/etc/ssh]# diff sshd_config sshd_config.save
13c13
< Port 4000

> #Port 22
root@root [/etc/ssh]#

Restart sshd and verify that it is listening on the new port.

root@root [/etc/ssh]# /etc/init.d/sshd restart
Stopping sshd:                                             [  OK  ]
Starting sshd:                                             [  OK  ]
root@root [/etc/ssh]# netstat -anp | grep sshd
tcp        0      0 0.0.0.0:4000                0.0.0.0:*                   LISTEN      1605/sshd

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Managed Services
at Hivelocity

Bare Metal Shouldn’t be a Grind
Let Hivelocity take the busy work out of your daily server maintenance with our Managed Services plans. Choose from 1 of 6 different managed service offerings. Standard and Premium plans available.

Questions about something specific? Chat now with one of our expert account managers and learn which plan is right for you and your customers!

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