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check_ntp_server_sync

Current Version
0.1
Last Release Date
2014-09-02
Compatible With
  • Nagios 3.x
License
GPL
Hits
20754
Files:
FileDescription
check_ntp_server_sync.shcheck_ntp_server_sync.sh
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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 super simple script checks the synchronization with the time server. Specifies the IP server to which you are synchronized and offset. Requires ntpq. It does not require any parameter. When you start it you should get:

someone@linuxhost:~# ./check_ntp_server_sync.sh
Synchronized with the server: 91.189.89.199 offset: 0.073

or

someone@linuxhost:~# ./check_ntp_server_sync.sh
No synchronization with the time server
Reviews (1)
byfmdupre, October 29, 2014
I changed the pluguin to be perfdata:
Now
- It returns 0 if the peer has been declared the system peer and lends its variables to the system variables.
- It returns 1 if the peer is a survivor, but not among the first six peers sorted by synchronization distance.
If the association is ephemeral, it may be demobilized to conserve resources.
- If it returns 2 if the peer is discarded as unreachable, synchronized to this server (synch loop) or outrageous synchronization distance.

#!/bin/sh
#
# michaszek@o2.pl
# Checks if the ntp service synchronises to the server time, gives ntp server IP and offset.
# Tested on Ubuntu 12.04.

/usr/sbin/ntpq -p | tail -1 | cut -c 1 >/tmp/check_ntp_server_sync.tmp
ETAT="$(cat /tmp/check_ntp_server_sync.tmp | cut -c 1)"
if [ "${ETAT}" == "*" ]
then
retour_nagios=0
fi
if [ "${ETAT}" == "#" ]
then
retour_nagios=1
fi
if [ "${ETAT}" == " " ]
then
retour_nagios=2
fi

HOST=$(/usr/sbin/ntpq -pn | tail -1 | awk '{print $1}' | cut -c 2-)
COMMAND=$(/usr/sbin/ntpq -pn | grep -F '*' | awk '{print $1}' | cut -d "*" -f 2)
OFFSET=$(/usr/sbin/ntpq -pn | tail -1 | awk '{print $9}')

if [ -z "$COMMAND" ]
then
echo "No synchronization with the time server : ${HOST} offset: ${OFFSET}; | Offset=${OFFSET}s;;"
exit ${retour_nagios}

else
echo "Synchronized with the time server : ${HOST} offset: ${OFFSET} | Offset=${OFFSET}s;;"
exit ${retour_nagios}
fi
Owner's reply

Sup! Great idea!