Linux Administration/Security/Configuration

This lesson covers security configuration.

Objectives and Skills
Objectives and skills for the security configuration portion of Linux+ certification include:
 * Set up host security
 * Awareness of shadow passwords and how they work
 * Turn off network services not in use
 * Understand the role of TCP wrappers
 * The following is a partial list of the used files, terms and utilities:
 * /etc/nologin
 * /etc/passwd
 * /etc/shadow
 * /etc/xinetd.d/*
 * /etc/xinetd.conf
 * /etc/inetd.d/*
 * /etc/inetd.conf
 * /etc/inittab
 * /etc/init.d/*
 * /etc/hosts.allow
 * /etc/hosts.deny