This can be port forwarded to host a website, or used with a reverse proxy server and domain name to expose multiple different web services safely. HTTPS: TCP Port 443 is the default port that most users open. While it’s in your best interest to use the HTTPS protocol (TCP Port 443) when exposing a web service (shown below), there are circumstances where users will port forward 80. HTTP: TCP Port 80 is the default port for HTTP traffic. Here are a few examples of ports that are commonly forwarded.

However, there are also circumstances where port forwarding is necessary. In general, you want to ensure that you’re safely exposing services as there are certain risks associated with port forwarding. After a port has been forwarded, a user outside of the local network can navigate to a domain name, DDNS hostname, or external IP address, append the port number that was forwarded, and access that service. Port forwarding exposes a service on your local network to the outside world. What is Port Forwarding?īefore you actually port forward anything in OPNsense, it’s important to understand exactly what port forwarding does. We will look at how to port forward in OPNsense below, but before we do, we’re going to look at exactly what port forwarding is. Conclusion: How to Port Forward in OPNsense.

Opnsense firewall rules