Great work on adding Guardian.

Here is my feedback on testing.   System usage / process seems to be running well with not that much overhead.

In looking at the log vs the web interface I have some feedback regarding web interface: 

Possible Bug:  I was unable to delete a host from the web interface - screen cast is here showing the last Host not being removed when selecting the delete option: http://screencast.com/t/ccl8eGNlxcj

Suggestion: Would it be valuable to add the Date / time stamp in addition to the IP address.

Question: Will the list of blocked IP address paginate after a specific number

Have been running for 24 hours and hit near 19 blocked hosts. This feature may already be there but I may not have enough blocked hosts.

Running Guardian 2.0-011 and IPFire 2.17 (i586) - Core Update 87