Welcome to It-Slav.Net blog
Peter Andersson
peter@it-slav.net

I've already got a female to worry about. Her name is the Enterprise.
-- Kirk, "The Corbomite Maneuver", stardate 1514.0

Background As a happy owner of a pebble watch I want my op5 Monitor notifications to it. This is a simple guide howto get notifications sent directly tt a pebble watch. My phone is an Android and probably there is similar ways of getting it working on iphone aswell. The guide will work on Nagios [...]

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Background My latest gizmo in the basement is a Netgear ReadyNAS RN104. Of cource I want to monitor it so I can be sure that it is healthy. This article describe howto monitor the RN104 by using SNMP. The implementation monitors: Disk status/temperature CPU temperature Fan status/speed Network status Admin GUI status  

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Background I wanted to have a LCD display on my desk showing the status of my monitor system. At the same time op5 created a competition with the coolest implementation of Raspberry PI and op5 Monitor. These things together made me getting started with my project. The result can be seen in this video  

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An howto that describe howto use irc as an alarm consol to nagios or op5 monitor

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15
Mar

Andreas Ericsson at op5 is working with major improvements of Nagios. The focus areas are: Complexity reduction by moving from multi-threading to single threaded programing Reducing latency Disk I/O usage reduction CPU usage reduction Memory usage reduction Read more at http://blogs.op5.com/development-work-on-nagios-project-to-improve-performance/

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Filled Under: Nagios, op5, op5 Monitor

Background As an it slave, I have the same problems as most datacenters: Running out of space because of more and more machines get into the datacenter Overheating Powerconsumption Added to the "normal" datacenter problems, I also have to deal with: Wife acceptance Noice, my neighbours has complained about the noice outside my basement. To [...]

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Background As a monitoring fanatic, I think that have mirrored disk without monitor the mirror is worse then not have a redundant disk system at all. If you think that you are safe and you are not, is worse then be aware of a risk and calculate with it. This article will describe how I did monitoring [...]

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Background My old NAS built on top of CentOS has some performence issues and the disks are quit old now. The hardware is leftovers that is approx 8 years old and not highend at that time either. The disks age has worried my for a time and I would like to have higher redunduncy with [...]

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Monitor the cloud with nagios or op5 monitor.

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05
Apr

Background It is very handy to have a temprobe attached to network devices like a Wlan router, if OpenWRT is installed it is easy to use 1-wire devices. By using this method it is possible to create wireless temperature probes that uses Wlan.  

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Presenting collected Nagios data has been cumbersome. But now with op5 added funtionality, storing the data in a database makes it much easier. Morten Bekkelund has created a nice dashboard typically used in NOCs. The dashboard has been modified and improved by the community and an example can be seen at op5 sandbox dashboard and [...]

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Background When I was preparing a presentation about what op5 is doing and our contribution to the community, I went to ideas.nagios.org. When I browsed the list of the biggest issues with Nagios I found out that op5 has packaged and solved them all in op5 Monitor. I encourage everyone to take a peak at the list [...]

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UPDATE 2014-07-07: op5 has released a native mobile app that are secure and uses op5 Monitor APIs. Please read more at: http://www.it-slav.net/blogs/2014/07/07/op5-releases-mobile-app-for-secure-monitoring-on-mobile-devices/     With my new and fancy HTC Desire I wanted to look at my Nagios or op5 Monitor status. I have found two apps Nagroid and NagMonDroid.  

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  Background It is always a good idea to monitor the server hardware, in many cases the root cause of the probblem is hardware related like: a fan stops and the temperature gets to high, dust in the machine makes it to hot, disks that fails, memory corruption and so on.  This article will describe [...]

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  Background At op5 we often run into BizTalk at customer sites as a business critical application. We have done an investigation and come up with a plugin  to monitor BizTalk. To fully understand this document BizTalk knowledge is necessary.

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Background I was reading the Swedish computer magazine, Tech World. There was an article about an appliance solution that could give a report about unused switch ports. The box PortIQ from Infoblox costs approximatly 10.000 Euro. op5 has developed this feature at a customer site and is included with op5 Monitor, op5 has published the code [...]

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Background This article will describe how easy it is to integrate other tools to Nagios or op5 Monitor. I will use an example with a webshop where a business view of how the webshop is doing is implemented by using a GPL’d rule engine, NodeBrain. I have in an earlier article described the ruleset for this [...]

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  Next week, op5 will release the new Nagios GUI called Ninja. The license is GPL and several people has reported the GUI work perfectly well on vanilla Nagios. Ninja uses a database backend. Merlin, another op5 developed software feeds the Nagios information into the database. Links: op5 -OpenSource based management software company Ninja- Nagios [...]

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In a contest Nagios won as the best system monitoring tool: http://www.thegeekstuff.com/2009/09/top-5-best-network-monitoring-tools/

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05
Sep

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 [...]

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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 [...]

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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 [...]

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09
Jun

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/

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05
Jun

A new place to find articles, plugins and other information abot nagios is http://exchange.nagios.org/.

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Filled Under: Hints, Links, Nagios
04
Jun

It has been very interesting and two intensive days. The highlights IMHO: Tobias Oitiker gave a very good presentation about the linux kernel caching and described how it affected RRDtools. Markus Almroth, describes Sysnagios which did the opposite of most monitoring projects. Sysnagios decentralized the configuration of systems and network monitoring in a controlled way. [...]

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Filled Under: english, graph, Hints, Nagios, op5




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