Tuning in with Hobbit, Nagios, and monit
FREE MONITOR
Open source tools such as Hobbit, Nagios, and monit provide system monitoring for large or small networks.
If you look after more than one computer, eventually you’ll realize you could benefit from some form of automatic monitoring – certainly after someone surprises you with the announcement that a system you are responsible for just crashed. In addition to reducing the response time for a downed system, system monitoring can also help you identify problems in advance – before the situation becomes an emergency. Even if you only have one computer, advanced notification that your disks are getting full or that sshd is down can save considerable time and stress.
If you have a specific service or situation you want to monitor, you could, of course, brew your own custom monitoring script and trigger it with cron. However, you really do not need to go reinventing wheels when several open source applications will handle the job for you. In this article, I look at three of the main contenders – Hobbit, Nagios, and monit. All are open source and freely available. All have good points and limitations. The ideal solution depends on your network, your experience, and your needs.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

News
-
TuxCare Announces Support for AlmaLinux 9.2
Thanks to TuxCare, AlmaLinux 9.2 (and soon version 9.6) now enjoys years of ongoing patching and compliance.
-
Go-Based Botnet Attacking IoT Devices
Using an SSH credential brute-force attack, the Go-based PumaBot is exploiting IoT devices everywhere.
-
Plasma 6.5 Promises Better Memory Optimization
With the stable Plasma 6.4 on the horizon, KDE has a few new tricks up its sleeve for Plasma 6.5.
-
KaOS 2025.05 Officially Qt5 Free
If you're a fan of independent Linux distributions, the team behind KaOS is proud to announce the latest iteration that includes kernel 6.14 and KDE's Plasma 6.3.5.
-
Linux Kernel 6.15 Now Available
The latest Linux kernel is now available with several new features/improvements and the usual bug fixes.
-
Microsoft Makes Surprising WSL Announcement
In a move that might surprise some users, Microsoft has made Windows Subsystem for Linux open source.
-
Red Hat Releases RHEL 10 Early
Red Hat quietly rolled out the official release of RHEL 10.0 a bit early.
-
openSUSE Joins End of 10
openSUSE has decided to not only join the End of 10 movement but it also will no longer support the Deepin Desktop Environment.
-
New Version of Flatpak Released
Flatpak 1.16.1 is now available as the latest, stable version with various improvements.
-
IBM Announces Powerhouse Linux Server
IBM has unleashed a seriously powerful Linux server with the LinuxONE Emperor 5.