There are a number of topics I can speak about given demand, here are topics I have spoken on recently:

• SE Linux
• SMTP Benchmarking
• Benchmarking Overview, practises and concepts
• File system with Bonnie++
• How malloc() really works and debugging memory management

Here is a list of topics that I plan to speak about in future:

• Computer Science vs Computer Witchcraft
• Optimising programs (C/C++/Perl/shell scripts)
• LDAP directories