Guide to the Secure Configuration of Debian 10
Rules, Groups, and Values defined within the XCCDF Benchmark
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Minimize Configuration Files Included
The <code>Include</code> directive directs <code>httpd</code> to load supplementary configuration files from a provided path. The default configura...Group -
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...Group -
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...Group -
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...Group -
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...Group -
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...Group -
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...Group -
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 ...Value -
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...Group -
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...Group -
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.Group -
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...Group -
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 ...Group -
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 ...Group -
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 -
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 -
Kerberos
The Kerberos protocol is used for authentication across non-secure network. Authentication can happen between various types of principals -- users,...Group -
LDAP
LDAP is a popular directory service, that is, a standardized way of looking up information from a central database. Debian 10 includes software tha...Group -
Configure OpenLDAP Clients
This section provides information on which security settings are important to configure in OpenLDAP clients by manually editing the appropriate con...Group -
Configure OpenLDAP Server
This section details some security-relevant settings for an OpenLDAP server.Group
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