OpenDBX is a lightweight C API for accessing all kinds of relational databases by a single interface. If you are tired of implementing a interface to different databases of your own, this will save you a lot of work.
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 PowerDNS OpenDBX Backend
PowerDNS is an extremely clean and versatile DNS server written by Bert Hubert. The OpenDBX backend enables it to fetch DNS information from every DBMS supported by the OpenDBX library and combines the power of one of the best DNS server implementations with the flexibility of the OpenDBX library.
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 PowerDNS LDAP Backend
PowerDNS is an extremely clean and versatile DNS server written by Bert Hubert. The LDAP backend enables it to fetch DNS information from every standard compliant LDAP server and combines the power of one of the best DNS server implementations with the ease of management provided by LDAP.
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 Code Library
This is a repository of code I've written for several projects and which might be also useful for other ones. It contains functions and classes written in various languages with documentation and examples for interested developers.
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phpGeneral is a web based administration tool written for user, group and device management. It uses a LDAP server as backend for storing the object attributes and can be extended by writing modules to do additional tasks. The most often used plugin up to now is for managing Cyrus Imapd user accounts.
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 Linux Message Center
This is a compilation of Open Source components to build a full featured mail server including SMTP, IMAP, POP3 and a web interface. A detailed documentation is included how the components have to be set up.
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 Secure Internet File System
A new file system implementation for the Linux kernel. It's a network file system emphasizing on security and is based on the OpenSSH framework (server side and transport security). I've implemented a prototype as part of my diploma thesis.
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Proposal for an authentication mechanism of the dotGNU framework.
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A few thoughts about the requirements for a round-based multi player network game.
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