Single Sign-On for Web Apps using Kerberos

Jul 272011

Background: At work we have a web based administration tool for student accounts, notebook rental and different billing processes. So far it’s been using its own user database for authentication. Since the service personal already has Active Directory accounts and matching group memberships it seems appropriate to use these for authorization and authentification. To make [...]

Webservices – The good, the bad and the ugly

Apr 212011

The reason for this post is some bad experience I had recently with one (or in fact multiple) webservices, so excuse me if this sounds a bit like a rant. First of all I’d like to say that I absolutely love webservices. They are one of the greatest things since the invention of sliced bread. [...]

Speeding up Thecus N8800Pro’s NFS write performance

Jan 212011

We have a Thecus N8800Pro fileserver to cover the institute’s storage needs. The storage system is connected to a Linux box via a 1Gbit/sec switch and is accessed by NFS. While the read performance was acceptable (about 85MByte/sec) the write performance left much to be desired (just 3MByte/sec). After some research the cause seemed to be the sync setting in /etc/exports which is responsible for synchronous data transfer.

A Fresh Start

Dec 302010

“About time!” was the first reaction I heard when I told a friend about me working on my new homepage. Several weeks later and just in time for the new year it’s ready for the public. Aside from the static (bilingual) content I’ll try to regular blog posts to keep it interesting. The content of [...]