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All glossary terms

Proxy & networking

Proxy port

A proxy port is a numbered transport endpoint on which a proxy process accepts connections. A client combines the proxy’s address and port to reach that listener; the port identifies a service endpoint, not a separate machine or public IP address.

Also known as proxy listener port.

Why it matters in practice

Several listeners can use different ports on one address for protocol or configuration reasons. Changing a port does not automatically allocate another IP, alter a destination’s address, or guarantee isolation. Network rules, proxy configuration, and the client’s connection settings determine whether a port is reachable and how it behaves.

Example

An application connects to the proxy’s configured host and listener port; adding a second listener does not create a second proxy IP.

Educational note

This definition is general information, not legal advice. It may omit facts that matter to a specific situation and does not establish or guarantee compliance.