This lesson covers security configuration.

Objectives and Skills

Objectives and skills for the security configuration portion of Linux+ certification include:^[1]

• 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

Readings

Multimedia

Activities

Lesson Summary

Key Terms

References