Port 1845
altalink · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | altalink |
Frequently asked questions
What is port 1845 used for?
Port 1845 is registered with the IANA for altalink (TCP/UDP). Description: altalink.
Is port 1845 a well-known port?
No. Port 1845 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 1845 is open?
Locally on Linux with ss -tulpn | grep ':1845\b', on Windows with netstat -ano | findstr :1845. To test a remote host use Test-NetConnection <host> -Port 1845 in PowerShell or nc -zv <host> 1845 on Linux/macOS.
How do I open port 1845 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 1845/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=1845/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 1845" -Direction Inbound -Protocol TCP -LocalPort 1845 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | altalink | altalink |
| UDP | altalink | altalink |