LPI Linux Certification/Perform Security Administration Tasks

Weight: 3

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