ttyrpld is a multi-OS kernel-level TTY keylogger and screenlogger with (a)synchronous replay support. It runs on Linux, Solaris, FreeBSD, NetBSD and OpenBSD.
Squeezer is a multi-dimensional logfile analyzer for Squid web cache server. It measures transfer speed from Squid, source servers and other caches and gives an information useful for tuning Squid and web cache hierarchy or mesh.
A tool suite to analyse protocol streams and whose flow characteristic. On the other side, the tool suite can be used to gather information about the network infrastructure and detect bottlenecks.