What is the default port for the Web User Interface on a Security Gateway installed on GAIA R80?

The default port for the Web User Interface on a Security Gateway installed on GAIA R80 is TCP 443. This port is commonly used for HTTPS traffic, which secures the communication between the user's browser and the web interface, ensuring that sensitive configuration details and system information are transmitted securely.

The use of port 443 for the Web User Interface standardizes access in line with other secure web interfaces while leveraging existing firewall rules that often allow HTTPS traffic. This choice also aligns with user expectations, as port 443 is widely recognized as the standard port for secure web access, making it easier for administrators to remember and manage access controls. The other options do not align with the default configuration for GAIA R80, emphasizing that recognizing standard ports is essential for effective security management and configuration.