[CentOS] SSH attacks from china

Fri Jul 24 09:07:41 UTC 2009
Andreas Rogge <a.rogge at solvention.de>

Am Donnerstag, den 23.07.2009, 19:45 +0100 schrieb Miguel Medalha:
> I moved the ssh port from the standard 22 to a high port. The attempts 
> to break into my servers disappeared. The logs are clean now. I would 
> advise you to do the same. Choose a high (> 1024) unused port and 
> configure the clients accordingly.
A port > 1024 for SSH? Actually that means that if your sshd dies every
normal user can start to listen on that port with watever they want.
Of course, there is still the host key. However, AFAICT most normal
users just ignore host key changes...


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