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DISA STIG for Oracle Linux 7

Rules and Groups employed by this XCCDF Profile

  • Disable vsftpd if Possible

    To minimize attack surface, disable vsftpd if at all possible.
    Group
  • Uninstall vsftpd Package

    The vsftpd package can be removed with the following command:
     $ sudo yum erase vsftpd
    Rule High Severity
  • Mail Server Software

    Mail servers are used to send and receive email over the network. Mail is a very common service, and Mail Transfer Agents (MTAs) are obvious target...
    Group
  • The mailx Package Is Installed

    A mail server is required for sending emails. The <code>mailx</code> package can be installed with the following command: <pre> $ sudo yum install ...
    Rule Medium Severity
  • Configure Operating System to Protect Mail Server

    The guidance in this section is appropriate for any host which is operating as a site MTA, whether the mail server runs using Sendmail, Postfix, or...
    Group
  • Configure Postfix if Necessary

    Postfix stores its configuration files in the directory /etc/postfix by default. The primary configuration file is /etc/postfix/main.cf.
    Group
  • Control Mail Relaying

    Postfix's mail relay controls are implemented with the help of the smtpd recipient restrictions option, which controls the restrictions placed on t...
    Group
  • Prevent Unrestricted Mail Relaying

    Modify the <pre>/etc/postfix/main.cf</pre> file to restrict client connections to the local network with the following command: <pre>$ sudo postcon...
    Rule Medium Severity
  • NFS and RPC

    The Network File System is a popular distributed filesystem for the Unix environment, and is very widely deployed. This section discusses the circ...
    Group
  • Configure NFS Clients

    The steps in this section are appropriate for systems which operate as NFS clients.
    Group

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