Port 18516

heythings · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Serviceheythings
Registered2020-05-13

Frequently asked questions

What is port 18516 used for?

Port 18516 is registered with the IANA for heythings (TCP/UDP). Description: Reserved; HeyThings Device communicate service.

Is port 18516 a well-known port?

No. Port 18516 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 18516 is open?

Locally on Linux with ss -tulpn | grep ':18516\b', on Windows with netstat -ano | findstr :18516. To test a remote host use Test-NetConnection <host> -Port 18516 in PowerShell or nc -zv <host> 18516 on Linux/macOS.

How do I open port 18516 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 18516/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=18516/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 18516" -Direction Inbound -Protocol TCP -LocalPort 18516 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCP–Reserved
UDPheythingsHeyThings Device communicate service

Nearby entries