Heads up: The agent is NOT a reliable, robust way to check for availability

[jherazob]

After too many troubles this week, i have determined that using the Zabbix agent to check for host/service availability is a mistake.

First a server went down, and agent.ping completely failed to alert anybody about it, it just stopped gathering information, last value was at about 3am...

[ctang]

Hi,

I'm running Zabbix 1.8.4 on Linux. I would like to monitor the NTP daemon, which is listening on UDP port 123, and for that I created a simple check item with the key ntp (which is a standard item that comes with Zabbix). However, it just keeps saying NTP server is down even though...