Port 2503

nms-dpnss · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicenms-dpnss

Frequently asked questions

What is port 2503 used for?

Port 2503 is registered with the IANA for nms-dpnss (TCP/UDP). Description: NMS-DPNSS.

Is port 2503 a well-known port?

No. Port 2503 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2503 is open?

Locally on Linux with ss -tulpn | grep ':2503\b', on Windows with netstat -ano | findstr :2503. To test a remote host use Test-NetConnection <host> -Port 2503 in PowerShell or nc -zv <host> 2503 on Linux/macOS.

How do I open port 2503 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2503/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2503/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2503" -Direction Inbound -Protocol TCP -LocalPort 2503 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPnms-dpnssNMS-DPNSS
UDPnms-dpnssNMS-DPNSS

Nearby entries