Installing xtables-addons on Raspbian
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Revision as of 00:42, 10 January 2015 by Tom (talk | contribs) (Created page with "=Why?= Annoyed by tons of SSH brutforce attacs, I was looking for a way to lock out connections coming from other countries than the desired ones. [http://xtables-addons.sourcefo...")
Why?
Annoyed by tons of SSH brutforce attacs, I was looking for a way to lock out connections coming from other countries than the desired ones. xtables-addons got the geoip module which enables us to use rules like
iptables -A INPUT -i wan -p tcp --dport 22 -m state --state NEW -m geoip ! --src-cc AT,DE -j GEOIP_BLOCK_LOG
This example would match on connections not originating from Austria (AT) or Germany (DE). I wanted to use it on a Raspberry Pi running Raspbian.
How?
Raspbian, a Debian based operating system for the Raspberry Pi, is a bit different to other Debian distributions when it comes to add kernel modules. The Kernel sources can not be installed using the packet manager but are downloaded and set up by a separate tool.
