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Guide to the Secure Configuration of Red Hat Enterprise Linux 10

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Mount Remote Filesystems with Kerberos Security

    Add the <code>sec=krb5:krb5i:krb5p</code> option to the fourth column of <code>/etc/fstab</code> for the line which controls mounting of any NFS mo...
    Rule Medium Severity
    Show

  • Mount Remote Filesystems with nodev

    Add the nodev option to the fourth column of /etc/fstab for the line which controls mounting of any NFS mounts.
    Rule Medium Severity
    Show

  • Mount Remote Filesystems with noexec

    Add the noexec option to the fourth column of /etc/fstab for the line which controls mounting of any NFS mounts.
    Rule Medium Severity
    Show

  • Mount Remote Filesystems with nosuid

    Add the nosuid option to the fourth column of /etc/fstab for the line which controls mounting of any NFS mounts.
    Rule Medium Severity
    Show

  • Configure NFS Servers

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

  • Use Kerberos Security on All Exports

    Using Kerberos on all exported mounts prevents a malicious client or user from impersonating a system user. To cryptography authenticate users to t...
    Rule Medium Severity
    Show

  • Network Time Protocol

    The Network Time Protocol is used to manage the system clock over a network. Computer clocks are not very accurate, so time will drift unpredictabl...
    Group
    Show

  • Vendor Approved Time pools

    The list of vendor-approved pool servers
    Value
    Show

  • Vendor Approved Time Servers

    The list of vendor-approved time servers
    Value
    Show

  • Maximum NTP or Chrony Poll

    The maximum NTP or Chrony poll interval number in seconds specified as a power of two.
    Value
    Show

  • The Chrony package is installed

    System time should be synchronized between all systems in an environment. This is typically done by establishing an authoritative time server or se...
    Rule Medium Severity
    Show

  • Uninstall tftp-server Package

    The tftp-server package can be removed with the following command: 
     $ sudo dnf remove tftp-server
    Rule High Severity
    Show

  • Remove tftp Daemon

    Trivial File Transfer Protocol (TFTP) is a simple file transfer protocol, typically used to automatically transfer configuration or boot files betw...
    Rule Low Severity
    Show

  • Ensure tftp systemd Service Uses Secure Mode

    If running the Trivial File Transfer Protocol (TFTP) service is necessary, it should be configured to change its root directory at startup. To do s...
    Rule Medium Severity
    Show

  • Print Support

    The Common Unix Printing System (CUPS) service provides both local and network printing support. A system running the CUPS service can accept print...
    Group
    Show

  • Disable the CUPS Service

    The cups service can be disabled with the following command: 
    $ sudo systemctl mask --now cups.service
    Rule Unknown Severity
    Show

  • Proxy Server

    A proxy server is a very desirable target for a potential adversary because much (or all) sensitive data for a given infrastructure may flow throug...
    Group
    Show

  • Disable Squid if Possible

    If Squid was installed and activated, but the system does not need to act as a proxy server, then it should be disabled and removed.
    Group
    Show

  • Uninstall squid Package

    The squid package can be removed with the following command: 
     $ sudo dnf remove squid
    Rule Unknown Severity
    Show

  • Disable Squid

    The squid service can be disabled with the following command: 
    $ sudo systemctl mask --now squid.service
    Rule Unknown Severity
    Show

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