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Guide to the Secure Configuration of Red Hat Enterprise Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Verify Permissions on SSH Server Public *.pub Key Files

    To properly set the permissions of /etc/ssh/*.pub, run the command:
    $ sudo chmod 0644 /etc/ssh/*.pub
    Rule Medium Severity
  • Remove SSH Server iptables Firewall exception (Unusual)

    By default, inbound connections to SSH's port are allowed. If the SSH server is not being used, this exception should be removed from the firewall ...
    Rule Unknown Severity
  • Configure OpenSSH Client if Necessary

    The following configuration changes apply to the SSH client. They can improve security parameters relwevant to the client user, e.g. increasing ent...
    Group
  • Configure session renegotiation for SSH client

    The <code>RekeyLimit</code> parameter specifies how often the session key is renegotiated, both in terms of amount of data that may be transmitted ...
    Rule Medium Severity
  • SSH client uses strong entropy to seed (for CSH like shells)

    To set up SSH client to use entropy from a high-quality source, make sure that the appropriate shell environment variable is configured. The <code>...
    Rule Medium Severity

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