Timbersee - a multiple logfile monitoring application, like swatch but with a few improvements. An essential tool for the security concious.
Toby - a GNU replacement for the tripwire program. Functionally similar to tripwire-1.3, this program will maintain a database of checksums for files. Once an initial database of file known to be "safe" is built, verifications on the database can be run later to detect trojan horses installed by intruders. This program, or ones similar to it, are a must for any system administrator concerned about the security of their system.
chkconfig - an autoconf version of the useful utility by RedHat. It manages the collection of symbolic links found in /etc/rc.d on a SysV type system. This version should compile (and work) on more than just Linux systems.
dasBoot
- a set of /bin/csh login scripts that include a
list of common paths found on Unix systems so that your environment
is consistent across all machines.