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Daniel_Ao_10370's avatar
Daniel_Ao_10370
Icon for Nimbostratus rankNimbostratus
Apr 20, 2009

NTP Server Health Monitor

I would like to load balance my internal NTP servers in BIGIP. How to monitor NTP service in F5?     In addition, I found that there is an udp monitor in BIGIP, how does udp monitor works?
management
monitoring
Danny_Trinh_104's avatar
Danny_Trinh_104
Icon for Nimbostratus rankNimbostratus
Jun 08, 2009
The main reason to load balance NTP server (in my case) is to let apps teams, network teams, etc. know 1 IP address for their setup. They don't need to change their setup, even the NTP server(s) downed or replaced with the new IP addresses. You can start with http://devcentral.f5.com/Wiki/default.aspx/AdvDesignConfig/DNSMonitorUsingNSLookup.html and replace "nslookup..." line with "ntpdate -q $node_ip | grep adjust > /dev/null 2>&1"