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Guide to the Secure Configuration of Red Hat Enterprise Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Verify Group Ownership of /etc/hosts.allow

    To properly set the group owner of /etc/hosts.allow, run the command: 
    $ sudo chgrp root /etc/hosts.allow
    Rule Medium Severity
    Show

  • Verify Group Ownership of /etc/hosts.deny

    To properly set the group owner of /etc/hosts.deny, run the command: 
    $ sudo chgrp root /etc/hosts.deny
    Rule Medium Severity
    Show

  • Verify Ownership of /etc/hosts.allow

    To properly set the owner of /etc/hosts.allow, run the command: 
    $ sudo chown root /etc/hosts.allow
    Rule Medium Severity
    Show

  • Verify Ownership of /etc/hosts.deny

    To properly set the owner of /etc/hosts.deny, run the command: 
    $ sudo chown root /etc/hosts.deny
    Rule Medium Severity
    Show

  • Verify Permissions on /etc/hosts.allow

    To properly set the permissions of /etc/hosts.allow, run the command: 
    $ sudo chmod 0644 /etc/hosts.allow
    Rule Medium Severity
    Show

  • Verify Permissions on /etc/hosts.deny

    To properly set the permissions of /etc/hosts.deny, run the command: 
    $ sudo chmod 0644 /etc/hosts.deny
    Rule Medium Severity
    Show

  • NIS

    The Network Information Service (NIS), also known as 'Yellow Pages' (YP), and its successor NIS+ have been made obsolete by Kerberos, LDAP, and oth...
    Group
    Show

  • Remove NIS Client

    The Network Information Service (NIS), formerly known as Yellow Pages, is a client-server directory service protocol used to distribute system conf...
    Rule Unknown Severity
    Show

  • Uninstall ypserv Package

    The ypserv package can be removed with the following command: 
    $ sudo yum erase ypserv
    Rule High Severity
    Show

  • Disable ypbind Service

    The <code>ypbind</code> service, which allows the system to act as a client in a NIS or NIS+ domain, should be disabled. The <code>ypbind</code> s...
    Rule Medium Severity
    Show

  • Rlogin, Rsh, and Rexec

    The Berkeley r-commands are legacy services which allow cleartext remote access and have an insecure trust model.
    Group
    Show

  • Telnet

    The telnet protocol does not provide confidentiality or integrity for information transmitted on the network. This includes authentication informat...
    Group
    Show

  • Uninstall rsh-server Package

    The rsh-server package can be removed with the following command: 
    $ sudo yum erase rsh-server
    Rule High Severity
    Show

  • Uninstall rsh Package

    The rsh package contains the client commands for the rsh services
    Rule Unknown Severity
    Show

  • Disable rexec Service

    The <code>rexec</code> service, which is available with the <code>rsh-server</code> package and runs as a service through xinetd or separately as a...
    Rule High Severity
    Show

  • Disable rlogin Service

    The <code>rlogin</code> service, which is available with the <code>rsh-server</code> package and runs as a service through xinetd or separately as ...
    Rule High Severity
    Show

  • Disable rsh Service

    The <code>rsh</code> service, which is available with the <code>rsh-server</code> package and runs as a service through xinetd or separately as a s...
    Rule High Severity
    Show

  • Remove Host-Based Authentication Files

    The <code>shosts.equiv</code> file lists remote hosts and users that are trusted by the local system. To remove these files, run the following comm...
    Rule High Severity
    Show

  • Remove Rsh Trust Files

    The files <code>/etc/hosts.equiv</code> and <code>~/.rhosts</code> (in each user's home directory) list remote hosts and users that are trusted by ...
    Rule High Severity
    Show

  • Remove User Host-Based Authentication Files

    The <code>~/.shosts</code> (in each user's home directory) files list remote hosts and users that are trusted by the local system. To remove these ...
    Rule High Severity
    Show

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