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Forum Discussion

fanta_377379's avatar
fanta_377379
Icon for Nimbostratus rankNimbostratus
Apr 22, 2019

NTP peer server configuration with F5

I have an issue to verify NTP peer server configuration with F5. In BIG_IP command line, the command is : ntpq -np and check the output. But, I have to replicate this in F5-SDK to automate the check...
devops
TMSH
youssef1's avatar
youssef1
Icon for Cumulonimbus rankCumulonimbus
Apr 23, 2019

Hi,

You have 2 way to achieve your need:

You can use ntpq for that.

First, calculate the offset and store it in a var:

ntp_offset=$(ntpq -pn | /usr/bin/awk 'BEGIN { offset=1000 } $1 ~ /\*/ { offset=$9 } END { print offset }')

  • Server OK when: ntp_offset < 1000
  • Server unsynchronised when: ntp_offset >= 1000

The second way is to use ntpstat:

  • Output when ntp is synched: synchronised to NTP server (10.1.11.33) at stratum 2 time correct to within 107 ms polling server every 1024 s

  • Output when ntp is unsynchronised:

unsynchronised

For more info: https://www.cyberciti.biz/faq/linux-unix-bsd-is-ntp-client-working/

Regards