[CentOS] Running SSH on a different port

Miguel Medalha miguelmedalha at sapo.pt
Sat Oct 24 14:10:20 UTC 2009


> How does one switch ssh ports? What is a good port to use? What  
> ramifications does it have when I need to ssh in? Is it as simple as  
> ssh user at hots:port?
>   

In /etc/ssh/sshd_config replace "port 22" with "port <whatever high port 
(> 1024) you like>"

Then configure your ssh clients accordingly.

I was having my logs filled with *literally* hundreds of connection 
attempts to port 22 every single day. Since I moved ssh to another port 
that stopped.

Also, disable password authentication and use public/private key pairs 
as certification.



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