Plugins

Checks Rsync Servers. Features include authentication, directory listings, data transfers, test timing, output prefixing, verbosity levels and timeout enforcement. Direct support for Gentoo Portage Mirrors.

A script that checks if processes and TCP ports are up. Tested on Redhat Enterprise Linux 3,4, Fedora 4,5,6, Solaris 6,7,8,9 and HP-UX 11.11,11.23

A script that checks, if a given process has exceeded a defined runtime in seconds

Check physical memory using shell script. Memory is displayed as a percentage.

A very simple script to check the number of opened files on system (linux of course..).

Compares /etc/fstab and /proc/mounts

Shell script to check network bonding. Displays bonding mode.

Check memory plugin by parsing /proc/meminfo and taking Cached mem into consideration

check_myfilesiz.pl

Bash shell script to check min/max size of files and/or directories. Relies on "stat" and "du", which most distributions should have. Usage: check_file_size.sh [--minwarn size]…

This plugin checks if there are debian updates available. If so, it issues a warning, if the packages are from security it raises a critical.

Yet an other CPU check plugin for uni-/multi-processor Linux machines.