Certified Security Solutions
tcp-md5 is a perl daemon implimenting RFC-2385 in userspace using ipfilter's QUEUE mechanism. Based on Alex Pilosov's bgpmd5.pl script.
tcp-md5 is structured as an "init.d" script. Its been tested on Centos4. Simply put tcp-md5 in /etc/init.d/, run chkconfig, edit /etc/tcp-md5.conf, and your done.
If you are not using Centos or a similar GNU/Linux OS, tcp-md5's configuration is easily modifiable with many configuration options available as command line flags.
No kernel modifications are required.
Note that you will need to have installed the following perl modules:
- NetPacket::IP - Note: version .4 has a bug. See: NetPacket::IP patch information
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