Monitor LXC container processes using HostResourceSwRunMonitor

A monitoring solution should always help in bad situations and provide a useful overview of your system health status. Service availability monitors are especially handy to ensure that all services are running on the correct machines. In past, I have run into an problem which was more of an issue with documentation than a classical monitor [...]

By |2019-04-04T23:01:28+00:00December 14th, 2017|Categories: Blog, How To|Tags: , , , |0 Comments

Monitoring Storcli based Megaraid/LSI RAID controllers

What happens when there are broken disks and degraded RAID volumes and nobody knows about them? Monitoring disks and RAID volumes is a fundamental part of rolling out a monitoring solution. Unfortunately, manufactures for RAID controllers create their own tooling, which makes it difficult to monitor them using generic monitoring protocols. If you are familiar with [...]

By |2019-04-04T23:01:28+00:00October 4th, 2017|Categories: Blog, How To|Tags: , , |0 Comments

Monitor your Synology NAS with SNMP

Network Attached Storage devices are very popular in small or medium offices or at home to store and share data. Synology is one of the manufactures who build their devices with SNMP support to provide monitoring and managment capabilities. This makes it very easy to let OpenNMS keep an eye on your NAS and it can tell [...]

By |2019-04-04T23:01:28+00:00September 13th, 2017|Categories: Blog, How To|Tags: , , |0 Comments

What the…? SNMP Daemon spams my log!

As soon you provide more than a handful of services monitoring and centralized logging becomes essential. Especially when you run the Net-SNMP daemon with Docker you will notice your logs get spamed with some messages like Cannot statfs /run/docker/netns/...: Permission denied everytime you query for performance data. The Wiki article is a small guide how to configure the [...]

By |2019-04-04T23:01:28+00:00June 19th, 2017|Categories: Blog, How To|Tags: , , |0 Comments

Monitoring Websites with Selenium

Now and then websites are really important for daily business and private life. You can nearly buy everything on websites, find information, meet friends, watch movies and much more. All the worse if your website is not working and you don't notice it or your customer first. But even if you already have some monitoring for [...]

By |2019-04-04T23:01:29+00:00June 12th, 2017|Categories: Blog, How To|Tags: , , |0 Comments

Restart Detection

Most of today's servers run in virtual environments and Java applications in containers. Sometimes these applications or servers unexpectedly restart and can often go unnoticed because a restart can be much faster then a polling cycle. If SNMP is enabled, the hrSystemUptime can detect restarts from Windows or Linux machines. Similarly, this concept can also be [...]

By |2019-04-04T23:01:45+00:00May 4th, 2017|Categories: Blog, How To|Tags: , |0 Comments

Reboot & Update Monitor

Security updates are important and need to be installed regularly and as quick as possible. In Linux distributions like Ubuntu and Debian this is easily done with the apt package manager. Most of the security updates can be installed without rebooting your system. If you upgrade your Kernel it is required to restart your system and [...]

By |2019-04-04T23:01:45+00:00April 7th, 2017|Categories: Blog, How To|Tags: , , |0 Comments

Automated Ordering

A self-sufficient printer environment OpenNMS usually stands for network and server monitoring. But like every good tool you can use (or misuse?!) OpenNMS in other scenarios as well. If that is a good solution, is completely your choice! :-) Imagine, you have a big printer environment, distributed in different locations and you don't want to order [...]

By |2019-04-04T23:01:45+00:00April 5th, 2017|Categories: Blog, How To|Tags: , |0 Comments