I stumbled over a very cool tool called extundelete. It promises to let you undelete/restore files you have trashed from your harddisk. I stumbled over it after deleting about 1TB of data on my QNAP Nas and actually it works pretty well and also restores the file names.

Not so amusing was the fact...

After downloading the newest version of Ciscos Configuration Manager and all the updated packages for the UC520 I started the upgrade process for the Unified Communications 520 for Small Business. I wasn't surprised when the first error messages came up, because those things never work that smoo...

Since a few weeks my DD-WRT router running on V24-SP2 is coming up with an annoying log message concerning the DynDNS Service I am using DYNDNS: Error 'RC_IP_RECV_ERROR' (0x15) when talking to IP server

After digging around in the DD-WRT Forum I found some interesting threads trying to figure o...

With the message Error: Passwords do not match, please retype. Cacti tried to make my life horrible today, but not with me.

If you are running Cacti 0.8.7b (which is the standard version located in the Ubuntu repositories) you will be prompted with this error after editing a host using Firefox...

Based on the fact, that Ubuntu 9.04 was announced today, it is a good idea to explain how to upgrade every Ubuntu Version using the command line.

  1. sudo apt-get install update-manager-core
  2. verify /etc/update-manager/release-upgrades to use LTS or Normal based on your preferences
  3. sudo do-rele...

%Error opening nvram:/startup-config (Unknown error 0)

One of these good morning messages you do not like on a Cisco Router, especially if it is followed by a more cryptic message like NV: Invalid Pointer values ...

The solution to fix that problem was a corrupted NVRAM which can be fixed by ex...

Ciscos SDM is sometimes used for configuring more complex router functions, after upgrading the SDM you could get a 404 error fot the path https://IP_ADDRESSE/home/html/home_aux.shtml

The reason for that is case sensitivity – that means that all Files on the Flash storage of your router have to b...

Script to stop/start and delete all printer jobs on a Windows machine

@echo off

echo ### stop printer service ###
NET STOP SPOOLER
echo.

echo ### delete all files in printer spooler directory ###
rem (has to be adapted)
del /F /Q “C:\WINDOWS\system32\spool\PRINTERS\*.*”
echo.

echo ### start pri...

Dear CCSI Herbert Feutl - CCSI# 31965,

Congratulations on qualifying as a Certified Cisco Systems Instructor. Your certification shows that Cisco has confidence in your technical skills and your ability to deliver the high-quality technical training for which Cisco is already well known. Please co...

Kurzfassung Deutsch

Diese Arbeit beschäftigt sich mit den Vor- und Nachteilen von Web-Technologien im Unternehmensumfeld. Es werden Alternativen zum Einsatz von Web Applikations-Technologien genannt, mögliche Herausforderungen beim Einsatz von Web-Applikationen aufgezeigt und die Zukunft dieser be...