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Guide to the Secure Configuration of Ubuntu 16.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Uninstall openldap-servers Package

    The slapd package is not installed by default on a Ubuntu 16.04 system. It is needed only by the OpenLDAP server, not by the clients which use LDAP for authentication. If the system is not intended...
    Rule Low Severity
  • The Postfix package is installed

    A mail server is required for sending emails. The postfix package can be installed with the following command:
    $ apt-get install postfix
    Rule Medium Severity
  • Configure SMTP For Mail Clients

    This section discusses settings for Postfix in a submission-only e-mail configuration.
    Group
  • Postfix relayhost

    Specify the host all outbound email should be routed into.
    Value
  • Postfix Root Mail Alias

    Specify an email address (string) for a root mail alias.
    Value

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