whatportis.com

Port 5142 services

2 entries are registered on port 514. 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

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

2 of 2 iana-registered

Services on this port

ranked by lookups
portservicerisk
:514RSH / REMSHcaution
:514Syslogcaution

01RSH / REMSHtcp · iana-registered · risk 4/10

Remote Shell (rsh or remsh) is a legacy protocol designed to execute shell commands on a remote Unix system in a non-interactive fashion. It operates primarily over TCP, allowing administrators or automated systems to issue single commands remotely. Despite its historical usage, RSH is largely deprecated due to its insecure design, transmitting data in plaintext, including user credentials, posing significant security risks in modern network environments.

port 514 as RSH / REMSH →

02Syslogudp · iana-registered · risk 4/10

Syslog operates primarily over UDP port 514 to facilitate the centralization of log messages from network devices and Unix systems. It allows administrators to collect, store, and analyze log data centrally, streamlining monitoring, troubleshooting, and security event analysis across distributed systems.

port 514 as Syslog →
filed underSecurityRemote AccessSystemNetwork Services

Which one is on your host

ask the machine, not the registry

The registry says what 514 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 ':514\b'
macos
lsof -nP -iTCP:514 -sTCP:LISTEN
windows
netstat -ano | findstr :514

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 514 — 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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