Port 245
link · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | link |
Frequently asked questions
What is port 245 used for?
Port 245 is registered with the IANA for link (TCP/UDP). Description: LINK.
Is port 245 a well-known port?
Yes. Port 245 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 245 is open?
Locally on Linux with ss -tulpn | grep ':245\b', on Windows with netstat -ano | findstr :245. To test a remote host use Test-NetConnection <host> -Port 245 in PowerShell or nc -zv <host> 245 on Linux/macOS.
How do I open port 245 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 245/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=245/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 245" -Direction Inbound -Protocol TCP -LocalPort 245 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | link | LINK |
| UDP | link | LINK |