We have now learned one useful method that will help us with monitoring remote locations that can't be reached directly. Let's rehash the main benefits that a Zabbix proxy provides:
Only connections from the Zabbix proxy to the Zabbix server on a single port are made, thus allowing us to monitor devices behind a firewall or devices that are inaccessible because of network configuration
Zabbix server is offloaded from keeping track of checks and actually performing them, thus increasing performance
Local buffering on the proxy allows it to continue gathering data while the Zabbix server is unavailable, transmitting it all when connectivity problems are resolved
With the listed benefits and being easy to install, a proxy is a very tempting part of the monitoring solution, but it is advisable to keep track of it by using the lastaccess
Zabbix internal item.
When changing a host to be monitored by a proxy, make sure to change Server
parameter in zabbix_agentd.conf
on the monitored host, and...