Audiolog is a small tool for analyzing traces or logfiles in real time and producing sound events. It always reads line by line from standard input. In a configuration file, you configure regular expressions. If audiolog reads a line matching a certain expression, it plays a note. You can specify the pitch and duration of that note. This allows you to hear your network traffic.
check_mk is a general purpose Nagios-plugin for retrieving data. It adopts a new approach for collecting data from operating systems and network components. It obsoletes NRPE, check_by_ssh, NSClient, and check_snmp and it has many benefits, the most important of which are significant reduction of CPU usage on the Nagios host and automatic inventory of items to be checked on hosts. The larger your Nagios installation is, the more helpful these improvements.
Waitmax is a small command line utility that executes a program in a new process. If that process does not exit withing a certain time, it is killed with the TERM signal. The precompiled RPM runs on all i386-based systems. It contains a version of waitmax that is statically linked with diet and does not need libc or any other library.