Write 2.5 double spaces pages about Linux in use for security procedures include:
1- Introduction
2- How Linux can be used to stop attackers.
(hardening security tips for Linux, how to use Linux to secure servers).
** I found this helpful links that might help to use in the paper:
You don’t have to use all of the contents, use the things you think are important.
https://bobcares.com/blog/how-to-secure-linux-server-from-hackers/
http://www.tecmint.com/linux-server-hardening-security-tips/