Nagios Schedule a Check on Command Line

authenticationnagios

I use Nagios Core 3.5.1. In order to skip the HTTP authentication (guest user without password could also be tedious), I turn off the Nagios authentication based on this article. (even though turning off authentication is not recommended in any situation)

The great thing right now is every one could go to my Nagios address to view, but not able to change anything. However, this unfortunately also disable my ability to reschedule a check, etc. Because I can not log out guest and log in my authenticated account.

So I give up rescheduling a check on the web interface, but turning to do so in command line. I am wondering if there is a way to reschedule a check on command line?

Any insight would be gratefully appreciated!

Best Answer

Scheduling a check on the command line is pretty easy. You need to enable the external commands (command list). Then all you need is the name of the service, the name of the host, and the unix_time for when you want the check to run.

Here are a couple examples

NAGIOS_CMD_SOCKET='/var/lib/nagios3/rw/nagios.cmd'
# schedule a service check
/usr/bin/printf "[%lu] SCHEDULE_FORCED_SVC_CHECK;%s;%s;%s\n" \
                  $(date +%s) \
                  "host_name" \
                  "service_name" \
                  $(date +%s) | tee -a $NAGIOS_CMD_SOCKET

# schedule a host check
/usr/bin/printf "[%lu] SCHEDULE_HOST_CHECK;%s;%s\n" \
                 $(date +%s) \
                 "host_name" \
                 $(date +%s) | tee -a $NAGIOS_CMD_SOCKET

Related Solutions

Nagios check http with form authentication

sure. the check_http plugin using the -P option allows you to post data. See all the options here: http://nagiosplugins.org/man/check_http

Nagios – How to Dynamically Set a New Test Interval for Nagios Checks

You can do it by using CHANGE_NORMAL_SVC_CHECK_INTERVAL and CHANGE_NORMAL_HOST_CHECK_INTERVAL.

Add an event handler for your service:

define service {
    host_name              ...
    service_description    ...
    check_command          ...
    contact_groups         ...
    event_handler          change_check_interval
}

The change_check_interval was defined in commands.cfg:

define command {
    command_name    change_check_interval
    command_line    $USER1$/eventhandlers/change_check_interval.sh $SERVICESTATE$ $SERVICESTATETYPE$ $SERVICEATTEMPT$ $HOSTADDRESS$
}

The content of change_check_interval.sh:

#!/bin/bash

now=`date +%s`
commandfile='/usr/local/nagios/var/rw/nagios.cmd'

case "$1" in
    OK)
        ;;
    WARNING)
        ;;
    UNKNOWN)
        ;;
    CRITICAL)
        /bin/printf "[%lu] CHANGE_NORMAL_SVC_CHECK_INTERVAL;host1;service1;2\n" $now > $commandfile
        ;;
esac

exit 0

Make sure that external commands is enabled in nagios.cfg:

check_external_commands=1

Best Answer

Related Solutions

Nagios check http with form authentication

Nagios – How to Dynamically Set a New Test Interval for Nagios Checks

Related Topic