Services Monitoring

There are a lot of tools for monitoring your IT needs and environment.

1) Nagios

 Nagios is one the most widely used network and server monitoring system. It is basically a text-based configuration tool, as all kinds of configuration are stored in text files

2)  Zabbix

  Zabbix is another free monitoring system that is written in PHP and is licensed under GPL. It is a combination of both Nagios and Cacti and provides a simple way for monitoring your network and provides timely alerts in case of any suspicious activity. You can also see some well-structured graphs with useful data.

3) Cacti

 It is an open-source, web-based network monitoring and graphing tool designed as a front-end application for the open-source, industry-standard data logging tool RRDtool.

 RRDtool (round-robin database tool) aims to handle time series data such as network bandwidth, temperatures or CPU load. The data is stored in a circular buffer based database, thus the system storage footprint remains constant over time.

It also includes tools to extract round-robin data in a graphical format, for which it was originally intended.

 In simple, the Cacti is a data collection tool that helps in gathering all kinds of data regarding user permissions, user access to certain charts and also helps in building complex graphs and storing data securely in a MySQL database. All the data gathering job is done through a cron job by an external script that provides all the metrics to build the graphs.

 4) Icinga

Icinga is another great monitoring system for your Linux environment that helps you to monitor all your network devices and all the resources connected to its network.

It also instantly notifies the admin when there are any suspicious or doubtful activities happening in the network.

This is an enterprise-grade tool that can be used for server and monitoring system across large network environments and offices situated across various locations.

5) MRTG

MRTG (Multi Router Traffic Grapher) is another simple network monitoring system like Nagios, Cacti, and Zabbix. It is specially designed to be used in networks with a smaller number of computers.

It is also mainly used for all devices like CPU, memory and other interfaces connected to the network. It also helps in providing detailed network statistics.