I noticed that my blog become slower and slower by using op5 Monitor and webinject, see previous article. From installation 2.5 seconds to over 7.5 seconds to run my testcases. The most annoying was that the it was a very linear increase see graphs below. My first try was to tune MySQL By installing wp-cache [...]
Op5 has written an excellent article howto monitor Esx3.x, ESXi, vSphere 4 and vCenter Server with op5 Monitor. This article is op5 Monitor centric but op5 Monitor is based on Nagios so this article can be used to implement Nagios vmware monitoring. The plugin used to gather the information is GPLd and developed by op5. [...]
An interesting article describing howto use Skype to send SMS notification for Nagios or op5 Monitor can be find here: http://wiki.nagios.org/index.php/SkypeSmsNotification My recommendation is to use an GSM modem to send SMS, because if the network is down no SMS can be sent with this solution and SMS is normally used as an alternative alarm [...]
Background I use MythTV quite frequently and noticed that it is instable when using sasc-ng as a decoder to decrypt encrypted DVB-T channels. So approximatly every third day the MythTVbackend server stops and need to be started again. I have wriiten an earlier article about howto monitor MythTV with Nagios or op5 Monitor so I [...]
op5 develops plugins for op5 Monitor, based on Nagios. As a courtesy to the community the plugins developed are free and can be downloaded from: http://www.op5.org/community/projects/op5-plugins The plugins is also located in a Git repository and can be checked out from: http://git.op5.org/git/
The Merlin project was initially started to create an easy way to set up distributed Nagios installations allowing Nagios processes to exchange information directly as an alternative to the standard nagios way using NSCA. When starting the Ninja project we realised that we could continue the work on Merlin and adopt the project to function [...]
Demo of how the Nagios based network monitoring tool op5 Monitor works and how easy it is to use. This part contains demo of the reports module and how to make SLA reports.
Background This article describes how to monitor an IPSEC tunnel running on OpenBSD. I could not find any plugin already done so I created my own. The pre req. for this article are: A working Nagios or op5 Monitor setup A IPsec VPN tunnel running on OpenBSD A working NRPE agent at the OpenBSD box
A demo of the benefits with op5 Monitor and what you can monitor with this Nagios based network monitoring tool. This first part gives a short introduction and overview of the tool.
I will be running a demo of op5 products at thursday April 23:th 16:00 CET. The demo is hosted by Collax a op5 partner in Germany. If you want to attend, register at: http://www.collax.com/de/ueber-collax/events-collax-live/webcast-collax-monitoring-solution.html
Background This article describe howto use a USB camera (also known as webcam) to detect motions and send an alarm to Nagios or op5 Monitor. It can be used in datacenters to send an alert if someone or something is moving or at home to detect if someone is in your house. I will place [...]
When using a database that are business critical it can be a good idea to monitor the internals. This article describe how-to monitor MySql with Nagios or op5 Monitor. In these case it runs a MythTV system but it could be almost anything. Pre requirements The pre requriements for this article is a working Nagios [...]
There are several ways of monitor a wordpress blog by using Nagios or op5 Monitor. WordPress uses the following parts to work: Webserver frontend PHP scripts MySQL database backend At least one system to run it on I found one article describing howto monitor the Webserver and the MySQL database and even that a certain [...]
op5 has started the work on a gui that has the aim to be the preferred opensource alternative gui to Nagios!! This is something op5 wanted to do for years now and by judging of the amount of requests we get from our customers about improvements to the current gui we are not alone The [...]
This article describe howto get a 1-wire humidity probe to work with Nagios or op5 Monitor. In an earlier article I have described a 1-wire temperature plugin. Pre requriments To get it working you need: 1-wire humidity probe i.e. this, it is based on DS2438 & HIH-4000 A working owfs installation, instructions can be found [...]
This article describe howto monitor an Asterisk server with Nagios or op5 Monitor. Pre-req to get it running is a working Nagios or op5 Monitor installation and an Asterisk Theory In my implementation of Asterisk I have a couple of softphones, 2 hardphones and connections to two SIP providers. I want to monitor the following: [...]
I’ve got a hint from a partner to take a peak at http://folk.uio.no/trondham/software/check_openmanage.html It describes How-To monitor Dell hardware with Nagios, of course it works perfectly well with op5 Monitor aswell.
Today I had to do some electrical work at home. The consequence was that my internet connection was down for about 20 minutes because my ADSL modem did not have any power. My Nagios based op5 Monitor system discovered this directly and reported to me. I forgot to schedule this as planed downtime so I [...]
At my home the most critical system is the MythTV system and a MythTV downtime will create a revolt at home. This article will describe howto make sure that a MythTV backend can be surveillanced with Nagios or op5 Monitor. I have in earlier articles described howto install and configure both the backend and the [...]
The new features include: Support for 64bit OS op5 Monitor 4.1 will support the 64bit versions of RedHat and CentOS. New improved performance graphs The new feature provides automatic graphing for all graphable performance data (based on pnp4Nagios). This means that you will get graphs for most of your hosts and services with no effort. [...]
To get output to an LCD display 1-wire can be used. This article will describe how to that and include an example to get status from Nagios or op5 Monitor on the display. I use it to get a quick overview how my DataCenter is doing. When the LCD display is flashing something has either [...]
I have hinted about automysqlbackup in an earlier blog. Of course an important script like this should be monitored by Nagios or op5 Monitor. In my opinion the correct way of doing this is using a passive check that sends in the result of the backup into Nagios or op5 Monitor. The backup script is [...]
In some cases the "Normal" way of running checks does not work, passive checks might do the job. I have a script the runs every night that backup my MySQL database. If this script fails I would like op5 Monitor or Nagios to send a notification. An active check will not work in this case [...]
Do you want to write your own plugin to Nagios or op5 Monitor. op5 have created a development howto for plugins a.k.a. check commands. Take a peak at op5 support pages.
Do you want Nagios or op5 Monitor notifications to be sent by MSN? Follow the steps below to implement it. This is a hint from my colleague Martin Kamijo, kudos to him
