2 entries are registered on port 2303. It is a registered port (1024–49151) — IANA records an assignee, but nothing stops other software from listening here, which is why the number carries more than one entry.
services registered on this number
2 transports in use
entries encrypted on the wire
1 of 2 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :2303 | ArmA Multiplayer Server Reporting | UDP | Gaming | caution | 9.8k |
| :2303 | Proxy Gateway | TCPUDP | Network Services | safe | 0 |
Port 2303 is primarily used by ArmA multiplayer servers to handle server status reporting and lightweight communications. It is often the default port incremented by one over the main game connection port. This port facilitates game state synchronization, server list broadcasting, and connection coordination among clients for a smoother multiplayer experience.
port 2303 as ArmA Multiplayer Server Reporting →Proxy gateway traffic over TCP or UDP; protocol and deployment details are not publicly documented.
port 2303 as Proxy Gateway →The registry says what 2303 is registered to. What is listening on it right now is decided by the host, and only the host can be asked. Each of these prints the process behind the socket.
ss -ltnp | grep ':2303\b'lsof -nP -iTCP:2303 -sTCP:LISTENnetstat -ano | findstr :2303On Linux and Windows the process name comes back with the socket; on macOS lsof needs sudo to name a process that isn't yours. Match what it prints against the 2 entries above.
A port number is not a service. Anything may listen on 2303 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.
contribute an entry