Hi all,
during the installation phase of my Centos server, I documented (mostly for myself) the steps in the form a blog.
As I am by no means a Linux hard-core admin, I think that my experience securing the OS (firewall and brute force detection) and installing Tomcat and Mysql could help also others.
If you are in trouble maybe it's worth a look :
http://bogdanfarca.blogspot.com/
Bogdan