Zorp is a new generation proxy firewall suite making it possible to finetune proxy decisions (with its built in script language), to fully analyze complex protocols (like SSH with several forwarded TCP connections), and to utilize outband authentication techniques (unlike common practices where proxy authentication had to be hacked into the protocol).
After installing zorp, you have to come up with a policy.py file, which may not be the easiest thing to do at first time.
A sample policy file is provided named /etc/zorp/policy.py.sample to be renamed to /etc/zorp/policy.py after local modifications are applied.
You will need to modify the zone declaration (the beginning of the file), to fit your network architecture. A zone in Zorp is a IP address range, and is the basis of access control. Each zone may define the services which is allowed to go into, and out of the zone.
As your policy file is in place, you'll need to add a new entry to your $prefix/etc/zorp/instances.conf file, like this:
zorp_plug --policy /usr/local/etc/zorp/policy-plug.py
The first word is the instance name to start, and the rest are the parameters to add to the zorp command line.
If you are done, you can now try to start your first Zorp instance using zorpctl:
zorpctl start zorp_plug
if you leave the instance name empty, all instances are started.
You can find the Zorp Tutorial in doc/zorp-tutorial.html which describes the GPLd version of Zorp, and a more comprehensive documentation for the commercial version which is available at
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