3 entries are registered on port 5001. 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 3 iana-registered
| port | service | proto | category | risk | views |
|---|---|---|---|---|---|
| :5001 | Iperf | TCPUDP | Network Services | caution | 27.7k |
| :5001 | Commplex-Link | TCP | Network Services | caution | 24.9k |
| :5001 | Slingbox | TCP | Streaming | caution | 22.4k |
Iperf is a widely used network benchmarking tool designed to measure the maximum achievable bandwidth on IP networks. Supporting both TCP and UDP protocols, Iperf enables detailed network performance assessments, including throughput, delay, jitter, and data loss statistics. It’s commonly utilized by network administrators and engineers to diagnose network bottlenecks and optimize performance across various network topologies.
port 5001 as Iperf →Commplex-Link is a port commonly utilized for generic network communication by various embedded devices and legacy systems. While initially registered for specific communication hardware, many software applications repurpose this port for diagnostic interfaces, proprietary protocols, and testing network throughput.
port 5001 as Commplex-Link →Port 5001 is primarily used by Slingbox devices in conjunction with Slingplayer applications to stream live or recorded television content over the internet. It enables users to remotely access their home TV feed from computers or mobile devices, providing a personalized viewing experience outside the home network.
port 5001 as Slingbox →The registry says what 5001 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 ':5001\b'lsof -nP -iTCP:5001 -sTCP:LISTENnetstat -ano | findstr :5001On 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 3 entries above.
A port number is not a service. Anything may listen on 5001 — 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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