Lead Image © erythropterus, 123RF.com
Versatile network and system monitoring
Digital Watchdog
LibreNMS [1] promises flexible network and system monitoring and combines various functions from tools such as Nagios and Cacti. Another advantage of the software is that, unlike its predecessor Observium, it has no annual license fees for additional features or services such as quick updates, rule-based grouping, and scalability across multiple servers.
Monitoring with LibreNMS is easier now thanks to the auto-discovery function, and the web-based interface provides a wide range of customization options for visualizing information. The auto-update mechanism also ensures that the monitoring environment is always up to date, but first you need to get the software set up.
Integrating Initial Devices
One major advantage of LibreNMS is that the developers make it really easy for administrators to carry out an initial evaluation of the environment. They provide the installation packages for Ubuntu 20.04/22.4, CentOS 8, and Debian 11, along with Docker, virtual machine (VM) images, and an online demo [2].
If you opt for a local installation, you can access LibreNMS on http://localhost: 8080 . You need to define the access credentials during the configuration process. If you use the VMs, the credentials are already predefined (username librenms , password D32fwefwef ).
LibreNMS is configured by default to update the environment automatically. If you want to run a manual update, you can use the ./daily.sh command as the librenms
user. In principle, you can disable the update mechanism in the global settings under Updates
in the web graphical user interface (GUI). However, the developers advise against doing so because the daily.sh script not only installs the latest system components, but also handles other tasks
Buy this article as PDF
(incl. VAT)
Buy ADMIN Magazine
US / Canada
UK / Australia
Related content
-
Understanding Autodiscovery
A lack of information about your infrastructure can result in faulty system configuration and other difficulties. Automatic discovery of all hosts and services would seem to be the best solution – but can it also prove itself in practice?
-
Monitor your network infrastructure with SNMP
If you don't have the staff to monitor your network in real time, SNMP and a couple of scripts are all it takes to keep track of your device jungle. -
Storage monitoring with Grafana
Create intuitive and meaningful visualizations of storage performance values with a "TIG" stack: Telegraf, InfluxDB, and Grafana. -
How to query sensors for helpful metrics
Discover the sensors that already exist on your systems, learn how to query their information, and add them to your metrics dashboard. -
Time-series-based monitoring with Prometheus
As Prometheus gave fire to mankind, the distributed monitoring software with the same name illuminates the admin's mind in native cloud environments, offering metrics for monitored systems and applications.