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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/...
Roland Wolters
A couple of hours ago Nokia and Intel announced that they plan to merge their mobile Linux platforms to create a common base: MeeGo. Giants Intel and Nokia have had their own Linux platforms for some time; Nokia was developing Maemo while Intel pushed Moblin forward. These two were battling in an...
Roland Wolters
One of the many advantages of vim is the possibility to use syntax highlighting: different terms and chars are displayed in different colors according to their meaning and function.The more colours are available, the better - however, in many cases vim falls back to 8 or 16 colors by default. This...
Roland Wolters
The Skolelinux team has released version 5.0 of its popular school server, which is now based on Debian Lenny. The distribution Skolelinux , also known as Debian-Edu , is a Debian version adapted for running school networks with Linux. It enables even non-geek users to quickly set up a central...
Roland Wolters
This week the KDE project released version 4.4 of its software compilation. Besides new scientific programs, this version focuses on stability and enhancements of the current programs and functions. The KDE project released version 4.4 of its "KDE Software Compilation" (KDE SC) package. The new...
Bernd Helmle
PostgreSQL is taking some big steps forward this year. The publishing of version 9.0 is just around the corner, while some of the older versions are coming to the end of their lifetime. PostgreSQL 9.0 2010 will see PostgreSQL release its first major new version for a long time: version 9.0. The...
Roland Wolters
The 2010 Debian Bug Squashing Party turned out to be a great success: around 200 bugs were fixed, ready for the forthcoming version of Debian. The weekend of 22-24 January saw this year's Bug Squashing Party hosted yet again by credativ. The aim of the weekend was to find and fix bugs in the next...
Roland Wolters
The current RHEL/CentOS 5 package has one flaw: it was compiled without Sieve support. However, with a bit of rpm magic, the package can be rebuilt and produces an additional sieve package. The current RHEL/CentOS 5 version has a rather old dovecot, 1.0.7. Even worse, the plugin for Sieve wasn't...