Port 100004 services

4 entries are registered on port 10000. 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
4

services registered on this number

transport
tcp · udp

2 transports in use

in transit
0/4

entries encrypted on the wire

worst risk
7/10

1 of 4 iana-registered

Services on this port

ranked by lookups

01Webminno transport recorded · unofficial · risk 4/10

Webmin is a web-based system configuration tool designed for Unix-like systems, allowing administrators to manage server functions through an intuitive web interface rather than command-line operations.

port 10000 as Webmin

03BackupExecno transport recorded · unofficial · risk 4/10

Symantec Backup Exec commonly uses port 10000 for its data transmissions, particularly via the Network Data Management Protocol (NDMP). This service facilitates backup, recovery, and data management between servers and backup storage devices, enabling streamlined enterprise data protection. Its prevalence across backup environments makes it an important yet potentially vulnerable port if not secured properly.

port 10000 as BackupExec

Which one is on your host

ask the machine, not the registry

The registry says what 10000 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 ':10000\b'
macos
lsof -nP -iTCP:10000 -sTCP:LISTEN
windows
netstat -ano | findstr :10000

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 4 entries above.

A port number is not a service. Anything may listen on 10000 — 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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