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Old 06-14-2006, 09:57 AM   #1
Registered: Jan 2006
Distribution: Various versions of Red Hat Fedora Core and Ubuntu
Posts: 40

Rep: Reputation: 15

Lately I have been getting slammed with brute force attacks from overseas All of my valid clients are here in The States. I'd like to block all blocks outside of the US. I am having difficulty finding a good list of all world ip addresses. Due to the volume I'd like to allow all of the US blocks and then do an implicit deny. Does anyone have such a list? Any suggestions?
Old 06-14-2006, 10:25 AM   #2
Registered: May 2004
Location: Atlanta, GA USA
Distribution: Redhat ES4, FC4, FC5, slax, ubuntu, knoppix
Posts: 155

Rep: Reputation: 30
You can create a block list and apply it to iptables to drop. The ony problem is there are so many ip ranges to keep up with it's nearly impossible to do.

Take a look at blackhole lists and check out SANS block list. It's a good start.
Old 06-14-2006, 03:02 PM   #3
Registered: Nov 2005
Location: Land of Linux :: Finland
Distribution: tri boot :: Fedora 22 && 23 && Rawhide == Testing Systemd
Posts: 222

Rep: Reputation: 50

You need to patch kernel if you want to use this match.
Old 06-14-2006, 03:57 PM   #4
Registered: Jan 2006
Distribution: Various versions of Red Hat Fedora Core and Ubuntu
Posts: 40

Original Poster
Rep: Reputation: 15
Thats the stuff. Thanks. I looked at geoip but I did not see anything that was as easy as geoip match. I knew there had to be something out there. Thanks. Now i feel stupid for not finding it. My google-fu was weak today.


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