Table of Contents
A secure Linux server depends on how the administrator configures it to be. Once we have eliminated the potential securities risk by removing RPM services not needed, we can start to secure our existing services and software on our server. In this chapter we will discuss some of the more general, basic techniques used to secure your system. The following is a list of features that can be used to help prevent attacks from external and internal sources.
It is recommended that you set a Boot password to disallow booting from floppy drives and set passwords on BIOS features. You can check your BIOS manual or look it over thoroughly the next time you boot up your system to know how to do this. Disallowing the possibility to boot from floppy drives and being able to set a password to access the BIOS features will improve the security of your system. This will block undesired people from trying to boot your Linux system with a special boot disk and will protect you from people trying to change BIOS feature like allowing boot from floppy drive or booting the server without prompt password.