LPI Linux Certification/Setup Host Security

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Weight: 3

Candidates should know how to set up a basic level of host security.

  • Key knowledge area(s):
    • 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