Port 2445
dtn1 · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | dtn1 |
Frequently asked questions
What is port 2445 used for?
Port 2445 is registered with the IANA for dtn1 (TCP/UDP). Description: DTN1.
Is port 2445 a well-known port?
No. Port 2445 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 2445 is open?
Locally on Linux with ss -tulpn | grep ':2445\b', on Windows with netstat -ano | findstr :2445. To test a remote host use Test-NetConnection <host> -Port 2445 in PowerShell or nc -zv <host> 2445 on Linux/macOS.
How do I open port 2445 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 2445/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2445/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2445" -Direction Inbound -Protocol TCP -LocalPort 2445 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | dtn1 | DTN1 |
| UDP | dtn1 | DTN1 |