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Tag: iptables

Iptables allows a system administrator to configure the tables provided by the Linux kernel firewall.

Ban offending IP addresses – fail2ban

This post is over 3 years old, so please keep in mind that some of its content might not be relevant anymore.

If you have logwatch installed (or you read auth.log file) you can find lots of entries mentioning login attempts/attacks.
Something like:

 
Nov 20[......]

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Author AndreaPosted on November 25, 2012January 25, 2017Categories How ToTags iptables, Linux, Security, sshLeave a comment on Ban offending IP addresses – fail2ban

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