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Guide to the Secure Configuration of Anolis OS 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Minimize Various Optional Components

    The following modules perform very specific tasks, sometimes providing access to just a few additional directives. If such functionality is not req...
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  • Use Appropriate Modules to Improve httpd's Security

    Among the modules available for <code>httpd</code> are several whose use may improve the security of the web server installation. This section reco...
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  • Deploy mod_security

    The <code>security</code> module provides an application level firewall for <code>httpd</code>. Following its installation with the base ruleset, s...
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  • Deploy mod_ssl

    Because HTTP is a plain text protocol, all traffic is susceptible to passive monitoring. If there is a need for confidentiality, SSL should be conf...
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  • Restrict Web Server Information Leakage

    The <code>ServerTokens</code> and <code>ServerSignature</code> directives determine how much information the web server discloses about the configu...
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  • Configure HTTPD-Served Web Content Securely

    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...
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  • Web Login Banner Verbiage

    Enter an appropriate login banner for your organization. Please note that new lines must be expressed by the '\n' character and special characters ...
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  • Use Denial-of-Service Protection Modules

    Denial-of-service attacks are difficult to detect and prevent while maintaining acceptable access to authorized users. However, some traffic-shapin...
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  • 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.dovec...
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  • Configure Dovecot if Necessary

    If the system will operate as an IMAP or POP3 server, the dovecot software should be configured securely by following the recommendations below.
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  • Allow IMAP Clients to Access the Server

    The default iptables configuration does not allow inbound access to any services. This modification will allow remote hosts to initiate connection...
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  • Enable SSL Support

    SSL should be used to encrypt network traffic between the Dovecot server and its clients. Users must authenticate to the Dovecot server in order ...
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  • Support Only the Necessary Protocols

    Dovecot supports the IMAP and POP3 protocols, as well as SSL-protected versions of those protocols. Configure the Dovecot server to support only ...
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  • Disable Cyrus IMAP

    If the system does not need to operate as an IMAP or POP3 server, the Cyrus IMAP software should be removed.
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  • Disable Dovecot

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

    The dovecot service can be disabled with the following command: 
    $ sudo systemctl mask --now dovecot.service
    Rule Unknown Severity
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  • Kerberos

    The Kerberos protocol is used for authentication across non-secure network. Authentication can happen between various types of principals -- users,...
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  • Configure OpenLDAP Clients

    This section provides information on which security settings are important to configure in OpenLDAP clients by manually editing the appropriate con...
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  • Configure OpenLDAP Server

    This section details some security-relevant settings for an OpenLDAP server.
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  • 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
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