Network Protocols

A single nagios checks summarizing a list of urls from file or stdin. This is useful if you've got a cluster and want to alerting…

A set of Powershell scripts for checking Windows DHCP server scopes. Reports the number of active healthy scopes or a list of scopes that have…

This lightweight script ping two hosts, and return OK only if a host is up and the other down.

Check radius using radpwtst utility (used by Radiator) Requires the radpwtst utility be located in /usr/local/nagios/libexec/radius/ This also typically requires the Radius Perl Modules be…

Check the routing tables on Cisco devices (may work on others, but not tested) for specific IP/Mask/Gw combinations. OK if found as expected, CRITICAL if…

The script checks the occupancy of IP addresses in the local network. With the IP address as a parameter to get the MAC address.

This super simple script checks the synchronization with the time server. Specifies the IP server to which you are synchronized and offset. Requires ntpq.

This script will check the status of lacp link, based on speed of the connection.

This perl script reads the output of a verbose check_http and creates a file with this content when status is not HTTP OK.

Nagios plugin that checks the status of OSPF neighbors on a Cisco IOS router. Latest version: https://github.com/critikaster/check_ospf.py

Different take on Lars Michelsen's original plugin/script to accommodate monitoring of all available DHCP scopes on your monitored Windows server. You no longer need to…

Check if zones are in sync on multiple DNS servers really fast.