Maggie is generating a certificate signing request (CSR) and figures that she must supply a CN for her web server. What details will she include in the CN field for the CSR?

For a certificate associated with a system, the CN (common name) generally corresponds to the fully qualified domain name (FQDN) of the server. If Maggie were seeking a certificate for herself instead of a server, she would enter her full name as the CN.

A fully qualified domain name (FQDN) is a complete domain name that specifies the exact location of a particular host within the Domain Name System (DNS) hierarchy. The FQDN includes the host name and the domain name, separated by periods (dots).

For example, in the FQDN "www.example.com," "www" is the host name, "example" is the second-level domain name, and ".com" is the top-level domain name. The FQDN provides a unique identifier for a specific host within the DNS system.

FQDNs are used to identify and locate resources on the internet, such as websites and email servers. They are also used in various security mechanisms, including SSL/TLS certificates and access control lists, to identify and verify the authenticity of hosts and domains.