Port 4486

icms · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceicms
Registered2010-09-27

Frequently asked questions

What is port 4486 used for?

Port 4486 is registered with the IANA for icms (TCP/UDP). Description: Integrated Client Message Service.

Is port 4486 a well-known port?

No. Port 4486 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4486 is open?

Locally on Linux with ss -tulpn | grep ':4486\b', on Windows with netstat -ano | findstr :4486. To test a remote host use Test-NetConnection <host> -Port 4486 in PowerShell or nc -zv <host> 4486 on Linux/macOS.

How do I open port 4486 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4486/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4486/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4486" -Direction Inbound -Protocol TCP -LocalPort 4486 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPicmsIntegrated Client Message Service
UDPicmsIntegrated Client Message Service

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