LPI Linux Certification/Perform Security Administration Tasks

Weight: 3

Description: Candidates should know how to review system configuration to ensure host security in accordance with local security policies.


 * Key knowledge area(s):
 * Audit a system to find files with the suid/sgid bit set.
 * Set or change user passwords and password aging information.
 * Being able to use nmap and netstat to discover open ports on a system.
 * Set up limits on user logins, processes and memory usage.
 * Basic sudo configuration and usage.


 * The following is a partial list of the used files, terms and utilities:
 * find
 * passwd
 * lsof
 * nmap
 * chage
 * netstat
 * sudo
 * /etc/sudoers
 * su
 * usermod
 * ulimit