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Guide to the Secure Configuration of Red Hat Enterprise Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Authenticate Zone Transfers

    If it is necessary for a secondary nameserver to receive zone data via zone transfer from the primary server, follow the instructions here. Use dn...
    Rule Medium Severity
    Show

  • Disable Dynamic Updates

    Is there a mission-critical reason to enable the risky dynamic update functionality? If not, edit <code>/etc/named.conf</code>. For each zone speci...
    Rule Unknown Severity
    Show

  • Disable Zone Transfers from the Nameserver

    Is it necessary for a secondary nameserver to receive zone data via zone transfer from the primary server? If not, follow the instructions in this...
    Rule Unknown Severity
    Show

  • Use Views to Partition External and Internal Information

    If it is not possible to run external and internal nameservers on separate physical systems, run BIND9 and simulate this feature using views. Edit ...
    Group
    Show

  • Run Separate DNS Servers for External and Internal Queries

    Is it possible to run external and internal nameservers on separate systems? If so, follow the configuration guidance in this section. On the exter...
    Group
    Show

  • Docker Service

    The docker service is necessary to create containers, which are self-sufficient and self-contained applications using the resource isolation fe...
    Group
    Show

  • Install the docker Package

    The docker package provides necessary software to create containers, which are self-sufficient and self-contained applications using the resource i...
    Rule Medium Severity
    Show

  • Enable the Docker service

    The docker service is commonly needed to create containers. The <code>docker</code> service can be enabled with the following command: <pre>$ su...
    Rule Medium Severity
    Show

  • Ensure SELinux support is enabled in Docker

    To enable the SELinux for the Docker service, the Docker service must be configured to run the Docker daemon with <code>--selinux-enabled</code> op...
    Rule High Severity
    Show

  • 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
    Show

  • 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...
    Group
    Show

  • Disable vsftpd if Possible

    To minimize attack surface, disable vsftpd if at all possible.
    Group
    Show

  • Uninstall vsftpd Package

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

  • Disable vsftpd Service

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

  • 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
    Show

  • Disable FTP Uploads if Possible

    Is there a mission-critical reason for users to upload files via FTP? If not, edit the vsftpd configuration file to add or correct the following co...
    Rule Unknown Severity
    Show

  • Place the FTP Home Directory on its Own Partition

    By default, the anonymous FTP root is the home directory of the FTP user account. The df command can be used to verify that this directory is on it...
    Rule Unknown Severity
    Show

  • Enable Logging of All FTP Transactions

    Add or correct the following configuration options within the <code>vsftpd</code> configuration file, located at <code>/etc/vsftpd/vsftpd.conf</cod...
    Rule Unknown Severity
    Show

  • Create Warning Banners for All FTP Users

    Edit the vsftpd configuration file, which resides at <code>/etc/vsftpd/vsftpd.conf</code> by default. Add or correct the following configuration ...
    Rule Medium Severity
    Show

  • 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...
    Group
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