whatportis.com

Port 45672 services

2 entries are registered on port 4567. 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.

entries
2

services registered on this number

transport
tcp · udp

2 transports in use

in transit
0/2

entries encrypted on the wire

worst risk
4/10

1 of 2 iana-registered

Services on this port

ranked by lookups
portservicerisk
:4567Sinatra Dev HTTP Portcaution
:4567TRAMsafe

01Sinatra Dev HTTP Porttcp · unofficial · risk 4/10

Port 4567 is commonly used by the Sinatra web framework as its default development server port, enabling quick testing of web applications over HTTP. Designed primarily for local development, this port offers a lightweight, minimal environment for developers to prototype and debug Sinatra-based applications before production deployment. Its default use is inherently non-secure and generally exposed on localhost interfaces, not intended for public-facing or production use.

port 4567 as Sinatra Dev HTTP Port →

02TRAMtcp · udp · iana-registered · risk 1/10

TRAM service traffic on TCP or UDP port 4567; public protocol details are not documented.

port 4567 as TRAM →
filed underWeb Services

Which one is on your host

ask the machine, not the registry

The registry says what 4567 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 ':4567\b'
macos
lsof -nP -iTCP:4567 -sTCP:LISTEN
windows
netstat -ano | findstr :4567

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 4567 — 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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