How To Install Nagios 4 and Monitor Your Servers
[Nagios](https://www.nagios.org/) is a popular open-source monitoring system. It keeps an inventory of your servers and monitors them so you know your critical services are up and running, and prevent problems before they occur. In this tutorial, you’ll install Nagios 4 and configure it so you can monitor host resources via Nagios’ web interface. Choose your operating system below to get started.
Ubuntu
How To Install Nagios 4 and Monitor Your Servers on Ubuntu 18.04
How To Install Nagios 4 and Monitor Your Servers on Ubuntu 16.04
How To Install Nagios 4 and Monitor Your Servers on Ubuntu 14.04
Become a contributor for community
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
DigitalOcean Documentation
Full documentation for every DigitalOcean product.
Resources for startups and SMBs
The Wave has everything you need to know about building a business, from raising funding to marketing your product.
Get our newsletter
Stay up to date by signing up for DigitalOcean’s Infrastructure as a Newsletter.
New accounts only. By submitting your email you agree to our Privacy Policy
The developer cloud
Scale up as you grow — whether you're running one virtual machine or ten thousand.
Get started for free
Sign up and get $200 in credit for your first 60 days with DigitalOcean.*
*This promotional offer applies to new accounts only.