80 HTTP

HTTP serves unencrypted web traffic and remains common behind reverse proxies, load balancers, and redirect rules.

Security Context

Port 80 is commonly expected on managed infrastructure, but it still needs scoped exposure, TLS where applicable, and service-specific hardening.

Use a version probe first so you confirm whether the expected service is really what is listening on this port.

nmap -sV -p 80 <host>

UFW

sudo ufw allow 80/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT