Raspberry Pi

 Arch Linux, Other Hardware  No Responses »
May 252012
 

Today my Raspberry Pi finally arrived! One of the projects I’m planning to use it for is out-of-band management for PCs.

This blog post will evolve as I’ll discover interesting things to do with my RPi.

About the hardware:

Arch Linux Essentials

Here are some of the steps that are most essential for me on the Arch Linux ARM image that I put on the SD card for my RPi:

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Microsoft Natural Ergonomic Keyboard 4000 with Mac OS X and Linux

 Other Hardware  2 Responses »
May 122012
 

Mac OS X

There’s a good blog post by David Röthlisberger on the Microsoft NEK 4000 on Mac OS X.

To remap the zoom slider to scroll I replaced the com.microsoft.keyboard.pref (from Microsoft’s Mac OS X driver) with the one found in Scott Bezek’s blog post Remapping Zoom on the Microsoft Natural Keyboard 4000 – Mac OS X (referenced in Q#403324 on SuperUser.com):

cd ~/Library/Preferences
mv com.microsoft.keyboard.pref com.microsoft.keyboard.pref.bak
wget http://scottbezek.com/com.microsoft.keyboard.pref
open /Library/PreferencePanes/Microsoft\ Keyboard.prefPane
# works.

Linux

Making the Zoom Slider Work on Ubuntu 12.04

Here are the instructions to make the zoom slider work on 12.04:

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HP EliteBook 2530p

 Ubuntu 12.04  1 Response »
May 052012
 

This blog post is about setting up a HP EliteBook 2530p for use with Ubuntu GNU/Linux 12.04 ‘precise’.

Hardware Information

Here are some details on the hardware of the 2530p:

Check Ubuntu Friendly for a report.

3G

The SIM slot is located behind the battery. When the notebook is laying on the table turned up side down, you need to insert the SIM with the contacts facing upwards (you can push it in until it is about 0.7 mm away from the case). Then reinsert the battery

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Rigol DG1022 Arbitrary Waveform Function Generator

 Other Hardware  1 Response »
May 042012
 
The DG1022 is a function generator that I was able to test recently. It is quite cheap (460 USD in the USA), has two outputs for standard wave forms (sine, square, ramp, pulse and noise) and also supports arbitrary wave forms. It has a USB interface and can most probably be controlled easily via Python (see below).

Specifications

I found a shorter list of specifications on rigolna.com and more detailed list on rigol.com. If you need even more information, you have to download the full specifications PDF (scroll down to the section references).

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Rigol DG1022 Arbitrary Waveform Function Generator

A Collection Of Reliable Public DNS Servers

 Networks  No Responses »
May 012012
 

TODO: Write a script to ping all the IPs and find the best (fastest). Put it online as a gist on GitHub.

Google

http://code.google.com/speed/public-dns/docs/using.html

  • 8.8.8.8
  • 8.8.4.4

IPv6:

  • 2001:4860:4860::8888
  • 2001:4860:4860::8844

Level3 / AT&T

  • 4.2.2.1
  • 4.2.2.2
  • 4.2.2.3
  • 4.2.2.4
  • 4.2.2.5
  • 4.2.2.6

More

  • 195.92.195.90 – Orange DNS (ISP)
  • 156.154.70.1 – DNS Advantage

OpenDNS

use.opendns.com
www.opendns.com/ipv6

  • 208.67.222.222
  • 208.67.220.220

IPv6:

  • 2620:0:ccc::2
  • 2620:0:ccd::2

Freenet6

IPv6:

  • 2001:5c0:1000:11::2
  • 2001:5c0:1001::194

How To Find Out Who’s Operating a DNS Server

Run whois on the IP:

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