NAGIOS
Nagios is very popular open source monitoring tools we can monitor anything, you will be able to monitor hosts resources by web interface. Nagios is useful for keeping an inventory of your servers, and making sure your critical services are up and running. For using a monitoring system, like Nagios, is an essential tool for any “production server environment“.
You will also use of or utilize the Nagios Remote Plugin Executor (NRPE), that will be installed and configured as an agent on remote hosts (Clients), to monitor their local resources.There are many things that Nagios can monitor
- Hosts
- Services
- Logs
- Interaction and connectivity
- Network’s Security
- System Perfomance etc
Linux_Point 