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Guide to the Secure Configuration of Red Hat Enterprise Linux 9

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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
  • Use vsftpd to Provide FTP Service if Necessary

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

    The web server is responsible for providing access to content via the HTTP protocol. Web servers represent a significant security risk because: <br...
    Group
  • Disable Apache if Possible

    If Apache was installed and activated, but the system does not need to act as a web server, then it should be disabled and removed from the system.
    Group
  • Uninstall httpd Package

    The httpd package can be removed with the following command:
    $ sudo dnf erase httpd
    Rule Unknown Severity
  • Disable httpd Service

    The httpd service can be disabled with the following command:
    $ sudo systemctl mask --now httpd.service
    Rule Unknown Severity
  • 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.
    Group
  • Uninstall nginx Package

    The nginx package can be removed with the following command:
    $ sudo dnf erase nginx
    Rule Unknown Severity
  • Install Apache if Necessary

    If <code>httpd</code> was not installed and activated, but the system needs to act as a web server, then it should be installed on the system. Foll...
    Group
  • Confirm Minimal Built-in Modules Installed

    The default <code>httpd</code> installation minimizes the number of modules that are compiled directly into the binary (<code>core prefork http_cor...
    Group
  • Secure Apache Configuration

    The <code>httpd</code> configuration file is <code>/etc/httpd/conf/httpd.conf</code>. Apply the recommendations in the remainder of this section to...
    Group
  • HTTPD Log Level

    The setting for LogLevel in /etc/httpd/conf/httpd.conf
    Value
  • Maximum KeepAlive Requests for HTTPD

    The setting for MaxKeepAliveRequests in httpd.conf
    Value
  • Configure Operating System to Protect Web Server

    The following configuration steps should be taken on the system which hosts the web server, in order to provide as safe an environment as possible ...
    Group
  • Run httpd in a chroot Jail if Practical

    Running <code>httpd</code> inside a <code>chroot</code> jail is designed to isolate the web server process to a small section of the filesystem, li...
    Group
  • Restrict File and Directory Access

    Minimize access to critical httpd files and directories.
    Group
  • Set Permissions on All Configuration Files Inside /etc/httpd/conf.d/

    To properly set the permissions of /etc/http/conf.d/*, run the command:
    $ sudo chmod 0640 /etc/http/conf.d/*
    Rule Unknown Severity
  • Set Permissions on All Configuration Files Inside /etc/httpd/conf/

    To properly set the permissions of /etc/http/conf/*, run the command:
    $ sudo chmod 0640 /etc/http/conf/*
    Rule Unknown Severity
  • Set Permissions on All Configuration Files Inside /etc/httpd/conf.modules.d/

    To properly set the permissions of /etc/http/conf.modules.d/*, run the command:
    $ sudo chmod 0640 /etc/http/conf.modules.d/*
    Rule Unknown Severity

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