Log files can be a valuable source of information. Zabbix provides a way to monitor log files using the Zabbix agent. For that, two special keys are provided:

• log: Allows us to monitor a single file
• logrt: Allows us to monitor multiple rotated files

Both of the log monitoring item keys only work as active items. To see how this functions, let's try out the Zabbix log file monitoring by actually monitoring some files.