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Guide to the Secure Configuration of Red Hat Enterprise Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Use Only FIPS 140-2 Validated MACs

    Limit the MACs to those hash algorithms which are FIPS-approved. The following line in <code>/etc/ssh/sshd_config</code> demonstrates use of FIPS-a...
    Rule Medium Severity
    Show

  • Enable Use of Privilege Separation

    When enabled, SSH will create an unprivileged child process that has the privilege of the authenticated user. To enable privilege separation in SSH...
    Rule Medium Severity
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  • SSH server uses strong entropy to seed

    To set up SSH server to use entropy from a high-quality source, edit the <code>/etc/sysconfig/sshd</code> file. The <code>SSH_USE_STRONG_RNG</code>...
    Rule Low Severity
    Show

  • Prevent remote hosts from connecting to the proxy display

    The SSH daemon should prevent remote hosts from connecting to the proxy display. <br> The default SSH configuration for <code>X11UseLocalhost</code...
    Rule Medium Severity
    Show

  • Strengthen Firewall Configuration if Possible

    If the SSH server is expected to only receive connections from the local network, then strengthen the default firewall rule for the SSH service to ...
    Group
    Show

  • System Security Services Daemon

    The System Security Services Daemon (SSSD) is a system daemon that provides access to different identity and authentication providers such as Red H...
    Group
    Show

  • SSSD certificate_verification option

    Value of the certificate_verification option in the SSSD config.
    Value
    Show

  • SSSD memcache_timeout option

    Value of the memcache_timeout option in the [nss] section of SSSD config /etc/sssd/sssd.conf.
    Value
    Show

  • SSSD ssh_known_hosts_timeout option

    Value of the ssh_known_hosts_timeout option in the [ssh] section of SSSD configuration file /etc/sssd/sssd.conf.
    Value
    Show

  • Install sssd-ipa Package

    The sssd-ipa package can be installed with the following command: 
    $ sudo yum install sssd-ipa
    Rule Medium Severity
    Show

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