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Guide to the Secure Configuration of Ubuntu 22.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Uninstall httpd Package

    The apache2 package can be removed with the following command: 
    $ apt-get remove apache2
    Rule Unknown Severity
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  • 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
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  • Uninstall nginx Package

    The nginx package can be removed with the following command: 
    $ apt-get remove nginx
    Rule Unknown Severity
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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.dovecot.org</a> contains more detailed information abou...
    Group
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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.
    Group
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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.
    Group
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  • Uninstall dovecot Package

    The dovecot-core package can be removed with the following command: 
    $ apt-get remove dovecot-core
    Rule Unknown Severity
    Show

  • LDAP

    LDAP is a popular directory service, that is, a standardized way of looking up information from a central database. Ubuntu 22.04 includes software that enables a system to act as both an LDAP clien...
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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 configuration files. Ubuntu 22.04 provides an automa...
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  • Configure OpenLDAP Server

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