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) …

Not everybody wants his contacts and calendar entries synchronized to the Google Cloud - I'm also one of those persons who prefer synchronizing sensitive data locally.

With HTC ROMs you can use HTC Sync for this - for me this have been the only reason why I used this ROMs for a long time.

But what to do if you don't …

Since I rooted my smartphones I tried a lot of ROMs and finally always ended with Sense ROMs. The main reason for this was the HTC Sync tool which enabled me to synchronize contacts and tasks with my local Outlook.

HTC Sync is only compatible with HTC ROMs - Android stockroms are not supported. I found no other tool …

Currently I'm implementing a IPSec tunnel between my and another flat. After my first plan, using an already existing Raspberry Pi as IPSec gateway, fizzled after plently of failed tries I decided to implement a router-to-router solution.

The center of my network is a ALIX.2D13 which is used as IPCop to offer DNS, NTP …

It is possible that the DELL OMSA inventory collector crashes on 64-bit RHEL systems with the following error message:

1# /opt/dell/srvadmin/sbin/invcol
2/opt/dell/srvadmin/sbin/invcol: ./invcol: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory

What a pity! This issue needs to be fixed if you want to …

Sometimes it might be necessary to mount Linux file systems under Windows.

This can be done very easily using a tool named "DiskInternals Linux Reader". This tool is able to mount the following file system types in read-only mode:

• ext2/3/4
• reiserFS/reiser4
• HFS(+)
• UFS2

Be noticed that the tool only mounts …

Today Red Hat released the fourth update of Red Hat Enterprise Linux 6. After 8 months there's also another update that brings a lot of fixes and new features.

The Release Notes für RHEL 6.4 are, as usual, very considerably - I personally think, that the following updates are specially mentionable:

Kickstart

Using th …

It is possible that a system update for a Google Nexus device can't be found and - according to this - downloaded, even if the update was definitely released.

A reason for this issue might be the "Google Services Framework" - it forces an error while communicating with the Google update servers. A solution …