[CentOS] One server not showing SSH port, the other is.

Phil Schaffner Philip.R.Schaffner at NASA.gov
Tue Oct 12 18:56:27 EDT 2010

Ryan Manikowski wrote on 10/11/2010 07:49 PM:
> One method to obscure the presence of the ssh daemon would be to use
> port knocking:
> http://dotancohen.com/howto/portknocking.html

Somehow I suspect the OP may have seen that one. :-D


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