Guide to the Secure Configuration of Red Hat Enterprise Linux 10
Rules, Groups, and Values defined within the XCCDF Benchmark
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Remove ftp Package
FTP (File Transfer Protocol) is a traditional and widely used standard tool for transferring files between a server and clients over a network, esp...Rule Low Severity -
Disable vsftpd if Possible
To minimize attack surface, disable vsftpd if at all possible.Group -
Uninstall vsftpd Package
Thevsftpd
package can be removed with the following command:$ sudo dnf remove vsftpd
Rule High Severity -
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
Thehttpd
package can be removed with the following command:$ sudo dnf remove httpd
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
Thenginx
package can be removed with the following command:$ sudo dnf remove nginx
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.dovec...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 -
Uninstall cyrus-imapd Package
Thecyrus-imapd
package can be removed with the following command:$ sudo dnf remove cyrus-imapd
Rule Unknown Severity -
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 -
Uninstall dovecot Package
Thedovecot
package can be removed with the following command:$ sudo dnf remove dovecot
Rule Unknown Severity -
Kerberos
The Kerberos protocol is used for authentication across non-secure network. Authentication can happen between various types of principals -- users,...Group -
Disable Kerberos by removing host keytab
Kerberos is not an approved key distribution method for Common Criteria. To prevent using Kerberos by system daemons, remove the Kerberos keytab fi...Rule Medium Severity -
LDAP
LDAP is a popular directory service, that is, a standardized way of looking up information from a central database. Red Hat Enterprise Linux 10 inc...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 -
Mail Server Software
Mail servers are used to send and receive email over the network. Mail is a very common service, and Mail Transfer Agents (MTAs) are obvious target...Group -
The s-nail Package Is Installed
A mail server is required for sending emails. The <code>s-nail</code> package can be installed with the following command: <pre> $ sudo dnf install...Rule Medium Severity -
Ensure Mail Transfer Agent is not Listening on any non-loopback Address
Mail Transfer Agents (MTA), such as sendmail and Postfix, are used to listen for incoming mail and transfer the messages to the appropriate user or...Rule Medium Severity
Node 2
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