Please advise: time sync check

[fisher]

What would be the best way to check if my servers are runing time synced? Or check if the client machine clock is whitin a few seconds to the server?

Thanks in advance!

[fisher]

To answer myself: I accidentally found the fuzzytime in the documentation and it works like a dream.

[macindy]

Hi!

Can you give me a hint what you set as key?

[fisher]

{ifapp1:system.localtime.fuzzytime(5)}=0

However it is not clear me how this time offset calculated. I reach this machine via a zabbix proxy and sometimes I receive false alarms, I believe because a delay caused by the proxy. But not sure.

[LenR]

I have a check at 10 seconds, 5 may be just too close. However, the localtime only refreshes every 30 seconds, so zabbix must sync the refresh with the trigger check.

One question, can this be done for a windows client? I don't see a localtime item.

[richlv]

system.localtime should be pretty much supported on all systems. did you check that ?
also, i'd suggest some longer period, more like 30 seconds, unless you have a really hard requirements on time sync.

[LenR]

Yea, system.localtime works, I'm not sure what I was doing wrong before.

I only check time to 10 seconds for 2-3 time servers. It time servers should be more authoritative than the zabbix server, but this validates the zabbix server has valid time. The rest of the servers are checking for 1 or 2 minute drift.

[tzn]

Anyone has a hint how to define trigger for time sync?

[LenR]

Ensure your zabbix server (or proxy) is sync'ed via ntp and has "good time".

This is for any client over 60 seconds out of sync:

{Template_Linux:system.localtime.fuzzytime(60)}=0