[Cialug] RE: SSH ports Security Paper - Theron?

Colin Burnett cmlburnett at gmail.com
Thu Jul 17 09:00:15 CDT 2008


Point being that you perform some sequence of port hits and it'd open,
say, ssh?  Does it include a client that can execute a given sequence
as a string or would you have to roll your own?

It's like a secret knock at the door.

Seems like the next step would be to take the concept of frequency
hopping where the ssh listening port jumps port based on a predefined
algorithm.


Colin

On Thu, Jul 17, 2008 at 8:47 AM, Theron Conrey <theron.conrey at dice.com> wrote:
> I'll find the link today, however, has anyone used knockd? And with what OS install?  How was the install/configuration? (http://www.zeroflux.org/cgi-bin/cvstrac.cgi/knock/wiki)
>
> -Theron


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