Knockd, to secure your ports on Linux

Posted by linuxaria on Apr 17, 2011 11:09 AM EDT
http://www.linuxaria.com; By Linuxaria 		Mail this story
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Today, i’ll show you how to use knockd to improve the security of your linux server, the more common use that i’ve saw so far is: “i’d like to connect on port 22 (ssh) but i don’t want to leave to port open for everyone..and i’ve a dynamic IP”. In these cases you can close the ports and use knockd to knock on the ports of your Linux box and let you in.

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