Is port 5001 (Synology DSM / iperf) dangerous?

Port 5001 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 5001 be open on my firewall?

Port 5001 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 5001 use?

Port 5001 (Synology DSM / iperf) uses the TCP transport protocol and falls under the System & Infrastructure category.

:5001 (TCP)

Synology DSM / iperf

Medium Risk

TCP — System & Infrastructure

Port Overview

Port Number 5001

Service Name Synology DSM / iperf

Transport Protocol TCP

Category System & Infrastructure

Security Risk Medium

Port Range Registered (1024-49151)

What is Port 5001?

Port 5001 is used by Synology DiskStation Manager (DSM) for HTTPS management access, and by iperf network performance testing tool. Synology NAS devices use this port for secure web-based administration. The iperf tool uses this port by default for bandwidth measurement between network endpoints.

TCP System & Infrastructure

Security Considerations

Port 5001 (Synology DSM / iperf) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.

Recommendation: Keep the service updated. Monitor logs for unusual activity.

Related Ports — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Related Terms

Bandwidth Latency Packet Loss Ping Throughput ASN