Monthly Archive for April, 2011

Nagios/Icinga Traffic-Light

Published on April 13, 2011 21:48 Tags: , , , , .

Nagios and Icinga have a lot of notification opportunities, receive status via Mail, SMS, Twitter or maybe XMPP? Sometimes is it not easy to decide what you really need and what is better for your quick reaction.

If you have more than one monitor it is easy to overlook an important mail, or your mobile phone is in silent mode and you don’t know that you get a critical notification.

If you are a webmaster and you are working a lot with your browser – there is a solution for Mozilla Firefox with terrible wake up sounds – called Nagios Checker for Mozilla Firefox:
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LED Music Sync Box

Published on April 12, 2011 16:13 Tags: , , , , , .

Sometimes in the evening is music great to relax or to hear to it incidentally while you do something.

I combined light with music – no so extreme like in the disco.

I bought some LEDs and a couple of TIP31 transistors. Transistors are the main key to the result! The first test was done on a breadboard.
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Your own weatherstation

Published on April 12, 2011 15:46 Tags: , , , , , , .


Create a own weather station or temperature monitoring using a tiny digital temperature sensor.

I use this setup to monitor a server room, and outdoor temperature and as a weather station.

This project consists of interface between RS-232F and the Dallas one Wire system.

You need: Continue reading ‘Your own weatherstation’

Debug on a Juniper firewall

Published on April 9, 2011 21:47 Tags: , , , .

Example, you want to debug a connection from a client(192.168.110.20) to the internet (google – 8.8.8.8).

From your client you start a continuous ping to 8.8.8.8, now you are able to debug the traffic on your juniper device.
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Midnight Commander

Published on April 8, 2011 09:54 Tags: , , , , .

GNU Midnight Commander is a visual file manager, licensed under GNU General Public License and therefore qualifies as Free Software. It’s a feature rich full-screen text mode application that allows you to copy, move and delete files and whole directory trees, search for files and run commands in the sub-shell. Internal viewer and editor are included.

No cp and mv more.
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