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Guide to the Secure Configuration of Anolis OS 23

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable DNS Server

    DNS software should be disabled on any systems which does not need to be a nameserver. Note that the BIND DNS server software is not installed on Anolis OS 23 by default. The remainder of this sect...
    Group
  • Uninstall bind Package

    The named service is provided by the bind package. The bind package can be removed with the following command:
    $ sudo yum erase bind
    Rule Low Severity
  • Disable named Service

    The named service can be disabled with the following command:
    $ sudo systemctl mask --now named.service
    Rule Medium Severity
  • Application Whitelisting Daemon

    Fapolicyd (File Access Policy Daemon) implements application whitelisting to decide file access rights. Applications that are known via a reputation source are allowed access while unknown applicat...
    Group
  • 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
  • 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 transmitted during the session can be captured an...
    Group
  • Disable vsftpd if Possible

    To minimize attack surface, disable vsftpd if at all possible.
    Group
  • Disable vsftpd Service

    The vsftpd service can be disabled with the following command:
    $ sudo systemctl mask --now vsftpd.service
    Rule Medium Severity
  • 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
  • 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 applications, how to restrict insecure FTP login to only...
    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> <br> <ul> <li>The HTTP port is commo...
    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
  • Disable httpd Service

    The httpd service can be disabled with the following command:
    $ sudo systemctl mask --now httpd.service
    Rule Unknown Severity
  • IMAP and POP3 Server

    Dovecot provides IMAP and POP3 services. It is not installed by default. The project page at <a href="http://www.dovecot.org">http://www.dovecot.org</a> contains more detailed information abou...
    Group
  • Disable Dovecot

    If the system does not need to operate as an IMAP or POP3 server, the dovecot software should be disabled and removed.
    Group
  • LDAP

    LDAP is a popular directory service, that is, a standardized way of looking up information from a central database. Anolis OS 23 includes software that enables a system to act as both an LDAP clien...
    Group
  • Configure OpenLDAP Server

    This section details some security-relevant settings for an OpenLDAP server.
    Group
  • Disable LDAP Server (slapd)

    The Lightweight Directory Access Protocol (LDAP) is a service that provides a method for looking up information from a central database.
    Rule Medium Severity
  • Vendor Approved Time Servers

    The list of vendor-approved time servers
    Value
  • Configure SMTP For Mail Clients

    This section discusses settings for Postfix in a submission-only e-mail configuration.
    Group

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