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<a href="http://kbase.redhat.com/faq/FAQ_44_4145.shtm" rel="ugc nofollow">http://kbase.redhat.com/faq/FAQ_44_4145.shtm</a>
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DenyHosts is a nice option. You may also wanna have something for brute force detection. BFD is a nice option for it:<br />
<br />
<a href="http://rfxnetworks.com/bfd.php" rel="ugc">http://rfxnetworks.com/bfd.php</a>
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PeturIngiEgilsson! <br />
<br />
Fail2ban seems very promising tool. Thanks for sharing it.
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I use denyhosts (suggested by amit_g) on a production server, it cut down the logs of connection attemptsfrom about 10 pages to just one.<br />
<br />
Easy to configure and it just runs away, no intervention needed (unless someone accidentally locks themselves out).<br />
<br />
I'd definately use it again.
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Dear Experts,<br />
<br />
How do you automatically block ip addresses of machines that tries to shh into your server (debian)?<br />
<br />
Thank you :)
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Dear Experts,

How do you automatically block ip addresses of machines that tries to shh into your server (debian)?

Thank you :)

http://kbase.redhat.com/faq/FAQ_44_4145.shtm

DenyHosts is a nice option. You may also wanna have something for brute force detection. BFD is a nice option for it:

http://rfxnetworks.com/bfd.php

PeturIngiEgilsson! 

Fail2ban seems very promising tool. Thanks for sharing it.

I use denyhosts (suggested by amit_g) on a production server, it cut down the logs of connection attemptsfrom about 10 pages to just one.

Easy to configure and it just runs away, no intervention needed (unless someone accidentally locks themselves out).

I&#39;d definately use it again.

How do you automatically block ip addresses of machines that tries to shh into your server?

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

Operating system security (OS security) is the process of ensuring OS integrity, confidentiality and availability. OS security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions. OS security encompasses all preventive-control techniques, which safeguard any computer assets capable of being stolen, edited or deleted if OS security is compromised, including authentication, passwords and threats to systems and programs.