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...

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...

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...

%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...

Eingelogged ist man oft schneller als ausgelogged. Sehr problematisch ist es, wenn eine Root-Shell nach dem Verlassen des Computers offen bleibt und jeder Anwesende hier herumwerken kann. Aus diesem Grund gibt es innerhalb der Bash Shell die Environment Variable TMOUT, setzt man diese, entweder per...

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...

Computer sind Arbeitstiere, und ganz im speziellen Server, trotzdem gehören auch diese Geräte nach speziellen Updates neu gestartet. Diesen Vorgang während der Arbeitszeit zu machen führt sehr oft zu nervenden Klingelorgien des Telefones. Aus diesem Grund macht es Sinn einen Server zu Zeiten neu zu...