admin
06-29-2003, 12:29 AM
The Firewall Tester consists of two simple Perl scripts - the client part (ftest.pl) and the listening "daemon" (ftestd.pl). The client injects custom packets, defined in ftest.conf, with a signature in the data part while the daemon listens for such marked packets. The scripts both write a log file that is in the same form for both scripts. A diff of the two produced files (ftest.log and ftestd.log) shows the packets that were unable to reach the daemon due to filtering rules if these two scripts are ran on hosts placed on two different sides of a firewall.