Escaping the Zabbix UI pain: How to create a combined graph for a number of hosts using the Zabbix API

This post will answer two questions: How to display the same item, f.ex. Processor load, for a number of hosts on the same graph How to avoid getting crazy from all the slow clicking in the Zabbix UI by using its API I will indicate how it could be done with plain HTTP POST and

Zabbix: Fixing Active Checks to Work With Zabbix Proxy

We’ve recently changed our Zabbix 1.8.1 setup to include Zabbix Proxy, which broke all our active checks (f.ex. monitoring of log files). The solution seems to be having the proxy first, before the Zabbix Server, in the Zabbix Agent’s config parameter Server, i.e. “Server=<proxy ip>,<server ip>”.

Notify on Errors in a Log File with Zabbix 1.8

Situation: You want to get notified when a log entry marked ERROR appears in a log file. You want the corresponding trigger to reset back to the OK state if there are no more errors for 10 minutes. (This post assumes certain familiarity with Zabbix UI.)

Testing Zabbix Trigger Expressions

When defining a Zabbix (1.8.2) trigger e.g. to inform you that there are errors in a log file, how do you verify that it is correct? As somebody recommended in a forum, you can use a Calculated Item with a similar expression (the syntax is little different from triggers). Contrary to triggers, the value of