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Guide to the Secure Configuration of Red Hat Enterprise Linux CoreOS 4

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable NGINX if Possible

    If NGINX was installed and activated, but the system does not need to act as a web server, then it should be removed from the system.
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  • Enable the File Access Policy Service

    The File Access Policy service should be enabled. The <code>fapolicyd</code> service can be enabled with the following manifest: <pre> --- apiVers...
    Rule Medium Severity
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  • fapolicyd Must be Configured to Limit Access to Users Home Folders

    fapolicyd needs be configured so that users cannot give access to their home folders to other users.
    Rule Medium Severity
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  • FTP Server

    FTP is a common method for allowing remote access to files. Like telnet, the FTP protocol is unencrypted, which means that passwords and other data...
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  • Disable vsftpd if Possible

    To minimize attack surface, disable vsftpd if at all possible.
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  • Configure vsftpd to Provide FTP Service if Necessary

    The primary vsftpd configuration file is /etc/vsftpd.conf, if that file exists, or /etc/vsftpd/vsftpd.conf if it does not.
    Group
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  • Configure Firewalls to Protect the FTP Server

    By default, <code>iptables</code> blocks access to the ports used by the web server. To configure <code>iptables</code> to allow port 21 traffic,...
    Rule Unknown Severity
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  • Restrict the Set of Users Allowed to Access FTP

    This section describes how to disable non-anonymous (password-based) FTP logins, or, if it is not possible to do this entirely due to legacy applic...
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  • Limit Users Allowed FTP Access if Necessary

    If there is a mission-critical reason for users to access their accounts via the insecure FTP protocol, limit the set of users who are allowed this...
    Rule Unknown Severity
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  • Use vsftpd to Provide FTP Service if Necessary

    If your use-case requires FTP service, install and set-up vsftpd to provide it.
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