Port 4154

atlinks · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceatlinks
Registered2002-10

Frequently asked questions

What is port 4154 used for?

Port 4154 is registered with the IANA for atlinks (TCP/UDP). Description: atlinks device discovery.

Is port 4154 a well-known port?

No. Port 4154 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4154 is open?

Locally on Linux with ss -tulpn | grep ':4154\b', on Windows with netstat -ano | findstr :4154. To test a remote host use Test-NetConnection <host> -Port 4154 in PowerShell or nc -zv <host> 4154 on Linux/macOS.

How do I open port 4154 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4154/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4154/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4154" -Direction Inbound -Protocol TCP -LocalPort 4154 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPatlinksatlinks device discovery
UDPatlinksatlinks device discovery

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