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Check Relayd

Current Version
Last Release Date
Compatible With
  • Nagios 3.x
check_relayd_0.4Old version
Network Monitoring Software - Download Nagios XI
Log Management Software - Nagios Log Server - Download
Netflow Analysis Software - Nagios Network Analyzer - Download
Comprehensive perl relayd checker.
NOTE:- Requires Perl 5.8 or higher
Nagios user will need sudo access - suggest adding line below to sudoers
_nagios ALL=(ALL) NOPASSWD: /usr/sbin/relayctl show summary

This plugin is designed to run on a local host, if Nagios is not local I suggest you run it via NRPE. However if you are running this on a firewall I would recommend not using NRPE and run a local Nagios useing OCSP/OCHP to pass messages back to your main Nagios.


Check_relayd checks that all redirect & relays loaded by relayd are active. If a redirect/relay or table are down/empty it will give a CRITICAL message with information regarding what has failed. If host(s) are down in a given redirect/relay then it will give a WARNING unless there are 0 up for that relay/redirect in which case it will give a CRITICAL.

If relayd returns any unexpected output (command failure, system errors) this program will return a CRITICAL.

check_relayd [ARGS]

-h, -?, --help
Print Help Information
-V, --version
Print Version Information
-r, --relay, --redirect
Optional -r argument you can give a list of the
expected relays/redirect separated by commas (,).
If it does not find the relay/redirect return
CRITICAL. If a relay/redirect is found that
is not defined return WARNING (unless you also use
-n see below).
-n, --nowarn
If -r is used do not warn for unexpected
relay/redirect found so that we can test just for
a single relay/redirect.

If you need any support or help with this plugin or if you find any cool ways of improving it please let me know.


v0.2 include sudo line as required for being given output from relayctl. Running without this will give false positive.

v0.3 single bug change to extract hash data in error message correctly.

v0.4 14/06/2011 - Peter Mottram - added nowarn (-n)

v0.5 27/08/2014 - Markus Gebert - check relayctl return code