All of the previous Q&As cover some of the most common issues new users might encounter. There are a lot of other issues you might run into, and with new versions of Zabbix, new issues will appear. While it's good to have quick solutions to common problems, let's look at some details that could be helpful when debugging Zabbix problems.
Troubleshooting Zabbix
The Zabbix log file format
One of the first places we should check when there's an unexplained issue is log files. This is not just a Zabbix-specific thing; log files are great. Sometimes. Other times, they do not help, but we will discuss some other options for when log files do not provide the answer. To be able to find the answer, though, it is helpful...