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

Intel has been the leading graphic card manufacturer to OpenSource the graphic drivers. Now the fully documentaion is released:

The PRM describes the architectural behavior and programming environment of the chipset and graphics devices. The GMCH’s Graphics Controller (GC) contains an extensive set of registers and instructions for configuration, 2D, 3D, and Video systems. The PRM describes the register, instruction, and memory interfaces and the device behaviors as controlled and observed through those interfaces. The PRM also describes the registers and instructions and provides detailed bit/field descriptions. This information is critical to the development and maintenance of Intel graphics drivers for this hardware.

Take a look at: http://intellinuxgraphics.org/index.html

Filled Under: english, Links

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 the camera just inside the door so everybody passing my front door will be filmed and an alert will be sent to me.

The software used:

  • Motion, to detect movement and create a movie of the relevant time, pictures is also taken.
  • Nagios or op5 Monitor to create the alarm.

The hardware used is an old Logitech webcam I found in my fathers drawer 😉 Motion supports alot of different devices but must simple is to use a video4linux supported device.

The pre req. for this article is a working Nagios or op5 Monitor system.

Read the rest of this entry »


Nagios is the number one open source software and one of the most widely recognized and used open source monitoring tools available today. Host for Nordic Meet on Nagios 2009 is op5, a company that supplies software based on open source for control of IT systems and networks, and utilizes Nagios as a key project in their product op5 Monitor. This is the second time for the conference in Stockholm.

Read the rest of this entry »

Filled Under: Nagios

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 or op5 Installation and a working MySql database.


Plugin

The plugin used in this article is: http://www.consol.de/opensource/nagios/check-mysql-health

Unfortunatly the webpage is in German only.

Read the rest of this entry »

29
Mar

op5 is proud to arrange Nordic Meet on Nagios 2009 June 3-4th in Stockholm.


—cut’n paste—

Welcome to Nordic Meet on Nagios 2009 (NMN2009) June 3-4th, the largest Nagios Meet in Scandinavia. The 2008 Meet was a great success! The event was filled to the last seat and a great atmosphere in great summer weather in Stockholm! You can watch a video from the 2008 event.

Take the opportunity to meet key open source profiles and discuss the future of their Nagios Related OSS Projects, listen to the latest news, market trends and case studies focusing on business value. There will be open discussions on development and technology challenges as well as hands on workshops. This year we develop the meet further with a longer program with more speakers from more projects, workshops and a whole lot of fun! We hope to meet you on Nordic Meet on Nagios 2009

—end cut’n paste—

 

I will be there…

Once again I have recieved an email containing an offer that I could publish my thesis:

“Charge Transport Modulation and Optical Absorption Switching in Organic Electronic Devices”. One problem is that I’m not the author of this thesis and that is something I have told Margit Schmöltz.

Read the rest of this entry »

Filled Under: Uncategorized

I have been noticing an increasing number of telemarketing phonecalls the last weeks and I would like to avoid having those callers disturbing me or my family. They have been calling at 9am, 11am, 1pm, 8pm during the weekdays, saturday and sunday.

 

I have been running an asterisk system to handle my VoIP calles the last years and I have been using it for a number of things during the time.

I also use firewalls to secure incoming and outgoing IP traffic in my home network, so I thought the asterisk system could be used to do handle a “blacklist” of telephone number on my PSTN.

I would also like the asterisk system to kick in before my normal telephone gets the call and starts ringing.

If it detects a telemarketing caller, I would like it to answer the call and give a prerecorded message saying something like “You are calling from a unauthorised source. Please do not call again, this telephone line is being monitored.” and then just drop the line.

 

I found a list of known Swedish CallerID numbers on the Internet that I can use to “jumpstart” my blacklist. I only needed to have a dialplan and to configure my Sipura SPA-3000 ATA device to send my PSTN calls to my asterisk system.


This is how I configured it:

Read the rest of this entry »

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 webpage contain a certain phrase. But I would like to emulate a user that clicks on some pages and graph the performance.

The tool I like for in-depth web monitoring is webinject. It allows scripting a simulated web user with alot of features.

I recommend to read the excellent how-to written by op5 support team and of cource use webinjects reference manual.

Read the rest of this entry »

11
Mar

Have you seen those fancy icons next to the webadress in your webbrowser? Now my blog has one 


They are called favicon and it is very simple to create your own.

I took a gif image that can be found at http://www.it-slav.net/~peter and went too http://www.animatedfavicon.com/ where I followed the very simple instructions.

To integrate it with my blog I use the shockingly-simple-favicon.

I also found http://www.favicon.cc/ where you can modify  your own icon.





Book reviews
FreePBX 2.5
Powerful Telephony Solutions






Asterisk 1.6
Build a feature rich telephony system with Asterisk






Learning NAGIOS 3.0





Cacti 0.8 Network Monitoring,
Monitor your network with ease!