01macon-udpudp · iana-registered · risk 1/10
UDP port assigned to the obscure macon-udp service; no public protocol details are recorded.
port 456 as macon-udp →Port 4562 services
2 entries are registered on port 456. It is a well-known port (0–1023) — assignments here are IANA's, and a service found on one is usually the service that was assigned it.
- entries
- 2
- transport
- udp · tcp
- in transit
- 0/2
- worst risk
- 1/10
services registered on this number
2 transports in use
entries encrypted on the wire
2 of 2 iana-registered
Services on this port
02macon-tcptcp · iana-registered · risk 1/10
macon-tcp is an obscure TCP service assignment with no documented public protocol usage.
port 456 as macon-tcp →Which one is on your host
The registry says what 456 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.
- linux
ss -ltnp | grep ':456\b'- macos
lsof -nP -iTCP:456 -sTCP:LISTEN- windows
netstat -ano | findstr :456
On 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 456 — what you actually met is decided by the host, not the registry. If a service is missing here, it belongs in the registry.
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