who can help me monitor the NTP server ?

[j-luo]

i want to use zabbix 1.7.2 to check the ntp server
i used the agent-check follow the manual,with net.tcp.service[service.ntp , ip],
but the return value is 0, menas error.

the ntpd running status is confirmed by using the command "ntpdate ip" from zabbix server

i found the log with "connection refuse"
and i found although the ntp server use the port 123 with UDP, the src/libs/zbxsysinfo/simple/ntp.c use the function "zbx_tcp_connect" which use SOCK_STREAM, not the SOCK_DGRAM......

has anyone monitor the ntp server sucessfully and can give me a sample how to do it?

[MrKen]

Using the zabbix agent, I use proc.num[ntpd]. This shows the number of ntp daemons running (always = 1).
And have a trigger defined for 'doesn't equal 1'.

Works for me.

MrKen

[j-luo]

thank you very much

so it means the service.ntp is useless?

i can only use proc.num[ntpd] to get the count of daemon , not the seconds since 1970 declared by manual for net.tcp.service[service.ntp]

[MrKen]

so it means the service.ntp is useless?

i can only use proc.num[ntpd] to get the count of daemon , not the seconds since 1970 declared by manual for net.tcp.service[service.ntp]

Useless?? Maybe. But it wouldn't work for me. But proc.num tells me what I want to know - that the service is running. I also have an item with system.localtime, so I can quickly compare the times between servers.

BTW, net.tcp.service will return a value of 0, 1, or 2, not the seconds since 1970.

MrKen

[j-luo]

thank you very much

that's what i want to do... compare the time between host and server...
thank you for the information of system.localtime

[Tenzer]

You could take a look at the PHP script I have posted previously, which queries a NTP server, and makes sure that it replies, instead of just checking that the service is running.

Also, there is a page on the wiki, which contains some information about monitoring DNS and NTP.