Koukaam NETIO power outlets offer a network interface that can be used for controlling the particular ports comfortably. It would be even nicer to monitor them with Nagios or Icinga. 2012 I created a provisional bash script for monitoring the ports and time synchronization over NTP.

This weekend I migrated the script …

While testing a web application that uses PHP PDO to establish a connection to a PostgreSQL database I stumbled upon the following error message:

1Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[08006] [7] FATAL: Ident authentication failed for user "user"' in xxx.php …

If you haven't used an Oracle database for some time you might stumble upon the issue I just had: all internal user accounts were locked and I also didn't know the passwords.

By default login information of internal users are invalid after 180 days.

The following accounts are important to me on my Oracle 11gR2 Database …

Recently I stumbled upon various PHP errors while using the free analytics software Piwik:

1PHP Fatal error: Allowed memory size of 2442473628 bytes exhausted (tried to allocate 64 bytes)
2...
3Fatal error: Maximum execution time of 30 seconds exceeded in .../piwik/core/DataTable.php

The solution is quite simple - the …

Doing a recent Wordpress theme installation I stumbled upon a problem which could have taken much time to fix it.

The theme I installed offers multiple sidebar configurations (left, right, none). There is no default settings which means that it is necessary to set the sidebar configuration for every particular blog …

This week one of the SUSE Linux Expert Day events that are taking place worldwide since september 2014 was hosted at 25hours Hotel Frankfurt by Levi's - a very stylish and fancy location!

Agenda

The event was planned for 5 hours and consisted of many interesting talks:

• Keynote - Michael Jores, Regional Director …

This week Red Hat Satellite 5.7 was released. With the ninth update of the 5.x tree many improvements from the Spacewalk development were applied.

New web interface

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Winter time is crafting time! I spent the last couple of days on the Raspberry Pi and PIR sensors (Passive Infrared). Using this sensors it is possible to recognize motions - in combination with GPIO APIs you can create useful applications.

The first idea that came in my mind was to monitor my washing machine in the …

CRUX-ARM is a Linux distro for ARM devices like the Raspberry Pi that follows the KISS philosophy. If you're looking for a minimalistic system you might want to have a look at the construction kit.

I'm using CRUX-ARM on one of my Raspberry Pi's. The installation fits on a 1 GB memory card. On the project's wiki there …