Need urgent help regarding security

[Peter C. Lai]

On Tue, Nov 22, 2005 at 12:13:03AM +0100, Bitbucket wrote:
> > 
> > You can also couple this with port-knocking (or even just port-knocking 
> > on 22).
> 
> Just out of curiosity, has anyone implemented this in fbsd?
> I would love to implement this for my machines.
> 
> -D

doorman (doorman.sf.net) is in ports.
tumbler (tumbler.sf.net) was one of the original implementations discussed
in linux journal and dr. dobbs (and in perl, altho may require a perl pcap
module).
I haven't tried any of these myself, but you might find them interesting.
http://www.portknocking.org/view/implementations/implementations for an 
extensive listing.

-- 
Peter C. Lai
Dept. of Neurobiology | SenseLab
Yale University School of Medicine
http://cowbert.2y.net/