LWN.net Logo

portknocking

portknocking

Posted Mar 9, 2007 1:12 UTC (Fri) by yarikoptic (subscriber, #36795)
In reply to: portknocking by ldo
Parent article: sshguard: Protection for OpenSSH (Linux.com)

well, taking cardboard analogy further, it is a cardboard which hides where the lock is.

Thus it might help preventing
* DoS attacks
* log spamming
* etc

So it is good what it is worth for: now my daily logwatch is clean and any entry which would report malicious attempt to login would trigger my interest to that event (as opposed to going through lengthy lists of failed attempts from dictionary attacks).


(Log in to post comments)

Copyright © 2008, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds