Information about computer security and networking. Author's projects, papers, code and configuration templates.

About, resume. Software (PHP, C#, and Javascript utilities). Photographs.

C.V., diploma - static formal verification . Python section. Freeware and open source programs (Java, Python, C++). Articles about Extreme Programming. Some content in polish.

Puzzles and Games, Design Patterns, Java and C++.

Articles on writing software, development tool and anything that make programming task more easy. Resume.

Education, career, certificates and projects. Resume. C++ article and test. Photos and fun.

Some samples of non commercial programming e.g. a lisp like interpreter, lambda calculus interpreter, regular expression tool, and more useless stuff with C++ and Java sources. CV in English, Spanish, French and Italian languages.

C++/C/C#, Ruby, PHP, Perl, Synergy/DE, XML/XSLT, ASP/VBScript tips, tricks, and examples.

Biography, family, pictures. Education, career, projects. Programming related notes.