Contact
Offices

Blog

news rss

Roland Wolters
Phoronix has used its Test Suite to compare the memory and power consumption of different desktop environments. However, the results should be handled with care. The "Power & Memory Usage" test was done to evaluate whether XFCE and LXDE consume less power and memory compared with their "big"...
Roland Wolters
This week we moved our blog to a new blogging software: Movable Type. Besides the technical advantages it is now much easier for us to display the same article in different languages. credativ is a multinational corporation with employees of different nationalities. This became problematic when we...
Roland Wolters
The Red Hat Cluster Suite is a framework to bind two or more machines together to jointly handle one task. The following article gives an introduction to RHCS in terms of service failover. Linux is used daily in mission-critical environments all over the world. It follows that Linux can be required...
Roland Wolters
The administration of a large number of servers can be quite tiresome without a central configuration management. This article gives a first introduction into the configuration management tool, Puppet . Introduction In our daily work at the Open Source Support Center we maintain a large number of...
Roland Wolters
Currently I am testing the browser rekonq , a WebKit based KDE browser which is handled as the next KDE default browser by some. If that might happen or not is a question best left to the future, but the browser itself has some nice features in the current version 0.4 beta : kwallet integration,...
Roland Wolters
credativ employee, Alexander Wirt, is due to give a presentation at the German Chemnitz Linux Days about Single Sign On with Kerberos. Besides an introduction into configuration of Kerberos, the talk will also focus on the configuration of its various services. Kerberos is an authentication...
Bernd Helmle
The PostgreSQL project just released the Alpha 4 of its upcoming PostgreSQL 9.0. The Alpha4 version of the upcoming PostgreSQL 9.0 release is ready for download . It is planned that Alpha4 will be the last Alpha version before the Beta release cycle for PostgreSQL 9.0. Some highlights of this...
Bernd Helmle
The series "PostgreSQL Optimiser Bits" will introduce the strategies and highlights of the PostgreSQL optimiser. We start today with a new feature of PostgreSQL 8.4: Semi and Anti Joins. Since version 8.4, PostgreSQL has been offering a new optimisation strategy for the optimisation of certain...
Roland Wolters
The Debian project has announced that its internal DNS infrastructure is gradually moving over to DNSSEC. Thus from now on, all DNS answers for debian.com, amongst others, will be digitally signed to verify their authenticity. The Domain Name System (DNS) is one of the core components of the...
Roland Wolters
One of the fastest ways to restrict the access to a web server path is to use .htaccess files. These are placed in the to-be-restricted path and contain the information how to restrict the access. A simple example is given below: AuthType Digest AuthName "SecretDir" AuthUserFile /etc/...