nslookup and ifconfig are two well-known tools for configuration the network of Unix/Linux hosts and checking whether DNS is working properly.

ifconfig was part of the 4.2BSD distribution in 1983 for the first time and quickly became the standard tool for network configuration - even commerical Unices like Solaris or …

. Meanwhile there are plenty of operating systems available for the Raspberry Pi - including an ARM version of the source-based Linux distro CRUX.

So if you like handcrafting or think Raspbian is "too mainstream", you can have a lot of fun with a SD card with at least 1 GB of memory and a pot of coffee. 😉 …

It's doubtless that Ubuntu is one of the most innovative Linux distributions - it made Linux desktops becoming more user-friendly and - thanks to this - raised the acceptance for end users in the last years.

Currently the gossip factory is working overtime again - some reliable sources announced that some big strategy …

If you install and configure a Postfix mail server for relaying mails using an external smarthost you might be puzzled about the following error message:

1Mar 19 17:00:22 hostname01 postfix/smtp[2003]: warning: SASL authentication failure: No worthy mechs found

The reason for this issue can be really trivial - in my …

Hint: The following issue has been fixed by a RHEL / CentOS patch (util-linux-ng) - just update your system!

If you want to install Open Monitoring Distribution on RHEL or CentOS 6.4, you might have the problem that creating sites isn't working as expected:

1# omd create test
2Adding /omd/sites/test/tmp to /etc/fstab. …

After 6 months of developing, openSUSE 12.3 was released today.

Time to have a look at the roots. openSUSE is based on the former S.u.S.E. Linux - S.u.S.E stood for the german company name (Gesellschaft für Software- und System-Entwicklung GmbH).

The first official S.u.S.E. version 4.2 was released 1996 and came with …

Recently I had problems with installing Oracle 11gR2 Express Edition on CentOS 6.4.

The installation of the RPM package worked but the database configuration crash with the following error:

1# service oracle-xe configure
2...
3"Database Configuration failed.  Look into /u01/app/oracle/product/11.2.0/xe/config/log …

If you want to receive mails on your smartphone or tablet you have to choose between two completely different technologies:

• Polling - The mail server is contacted in a pre-configured timeframe (30 minutes, 1 hour,...) and asked for new messages
• Pushing - The mails servers informs the mobile device about about new …

4EXT and ClockworkMod are two recovery images for Android devices - they can be used for installing, saving and restoring alternative ROMs.

But what's the difference between those two tools? That's what this article is about.

Depending on the Android ROM it might be required to use on of the two tools. For example, …

After I have been using Sense ROMs for a long time, I decided to "make a journey abroad".

On my Nexus 7 I'm using Android 4.2.2 - and I'm very satisfied with it. I decided to try this Android release also on my HTC sensation.

On xda-developers I spotted a ROM which is based on CyanogenMod 10.1 (Android 4.2.2) …