Port 4452

ctiprogramload · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicectiprogramload
Modified2011-10-28

Frequently asked questions

What is port 4452 used for?

Port 4452 is registered with the IANA for ctiprogramload (TCP/UDP). Description: CTI Program Load.

Is port 4452 a well-known port?

No. Port 4452 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4452 is open?

Locally on Linux with ss -tulpn | grep ':4452\b', on Windows with netstat -ano | findstr :4452. To test a remote host use Test-NetConnection <host> -Port 4452 in PowerShell or nc -zv <host> 4452 on Linux/macOS.

How do I open port 4452 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4452/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4452/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4452" -Direction Inbound -Protocol TCP -LocalPort 4452 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPctiprogramloadCTI Program Load
UDPctiprogramloadCTI Program Load

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