Port 2490

qip-qdhcp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceqip-qdhcp

Frequently asked questions

What is port 2490 used for?

Port 2490 is registered with the IANA for qip-qdhcp (TCP/UDP). Description: qip_qdhcp.

Is port 2490 a well-known port?

No. Port 2490 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 2490 is open?

Locally on Linux with ss -tulpn | grep ':2490\b', on Windows with netstat -ano | findstr :2490. To test a remote host use Test-NetConnection <host> -Port 2490 in PowerShell or nc -zv <host> 2490 on Linux/macOS.

How do I open port 2490 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 2490/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2490/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2490" -Direction Inbound -Protocol TCP -LocalPort 2490 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPqip-qdhcpqip_qdhcp
UDPqip-qdhcpqip_qdhcp

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