Config Zend Guard Optimizer/Loader on CentOS - Check DNS config

Hi, I need an admin Linux/CentOS with very strong skills on configuring Networking/DNS/Security. The configuration has already been done but you will have to check if everything is ok with the DNS and Nameservers config. You will also asked to take a look at my php.ini. I also need to setup Zend Optimizer/Guard 3.3 over my CentOS 5. It is already installed but it might need some updates or configuration. The admin that will be chosen may be get some more jobs later with me since I have a dedicated server and plan to start a Cloud business website. 50-100$ for this project