A system administrator is tasked with allowing incoming connections to a web server hosted on Linux. The server needs to accept traffic on port 443. How should the administrator configure UFW to achieve this?
ufw allow 443/udp
ufw deny 443/tcp
ufw allow 80/tcp
ufw allow 443/tcp
The correct answer is ufw allow 443/tcp because it allows incoming TCP traffic on port 443, which is the standard port for HTTPS traffic. The answer ufw allow 80/tcp is incorrect as it would allow traffic on port 80, which is the standard for HTTP, not HTTPS. The answer ufw deny 443/tcp is incorrect because it explicitly blocks traffic on port 443 rather than allowing it. Lastly, ufw allow 443/udp is incorrect as it allows UDP traffic on port 443, which is not typically used for web traffic as HTTPS uses the TCP protocol.
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