The Firewall Tester is a tool designed for testing firewalls' filtering policies. It includes an Intrusion Detection System testing feature, along with a packet generator tool and a sniffer. Unlike common firewall testing tools or packet generators, ftester is capable of generating network traffic that will look like real connections to the firewall or IDS system tested, which allows users to test stateful inspection firewalls (like netfilter or ipfilter) and IDS (like snort).
tenshi (formerly wasabi) is a log monitoring program designed to watch a log file for lines matching user defined regular expressions and report on the matches. The regular expressions are assigned to queues that have an alert interval and a list of mail recipients. Queues can be set to send a notification as soon as there is a log line assigned to them, or to send periodic reports. Additionally, uninteresting fields in the log lines (such as PID numbers) can be masked with the standard regular expression grouping operators ( ). This allows cleaner and more readable reports. All reports are separated by hostname and all messages are condensed when possible.