Nagios
If you are new to any of the top 5 tools mentioned here, please read the rest of the article to understand more about them.
Fig: Favorite System Monitoring Tool Voting Results
1. Nagios – Network Monitoring Software
Home Page: http://www.nagios.org
2. Cacti – Network Monitoring Software
Cacti also supports plugin architecture. Some admins like the powerful graphing feature provided by Cacti, they use both Nagios and Cacti in their environment as the network monitoring tools.
- Home Page: http://www.cacti.net
- Latest stable release: 0.8.7e
- License: Open Source. GNU.
- Read more about Cacti at Wikipedia.
3. Top (and other top variations)
- Top Command – Few of you have mentioned top command as your favorite monitoring tool
- ntop (Network Top) – Ntop is a free network monitoring software. ntop displays network usage information in a similar fashion to top command output. You can also create HTML output file (dump) of the network status using ntop. Apart from the command line, you can also launch the web version of the ntop once you’ve started the ntopd service and visit http://{ip-address}:3000 from browser.
- htop (interactive process viewer for Linux) – htop is similar to top command with few additional features. The main difference is that you can use mouse to interact with the htop command output.
4. Zabbix
Zabbix has the following three main modules:
- Server (written in C)
- Agents (written in C)
- Frontend (PHP and Javascript)
Additional information about Zabbix:
- Home Page: http://www.zabbix.com
- Latest stable release: 1.6.6
- License: Open Source. GNU.
- Developed by: Zabbix SIA (Private company)
- Read more about Zabbix at Wikipedia
5. Munin
- Home Page: http://munin.projects.linpro.no
- Latest stable release: 1.2.6
- License: Open Source. GNU.
- Read more about Munin at Wikipedia