Port 2381
compaq-https · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | compaq-https |
Frequently asked questions
What is port 2381 used for?
Port 2381 is registered with the IANA for compaq-https (TCP/UDP). Description: Compaq HTTPS.
Is port 2381 a well-known port?
No. Port 2381 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 2381 is open?
Locally on Linux with ss -tulpn | grep ':2381\b', on Windows with netstat -ano | findstr :2381. To test a remote host use Test-NetConnection <host> -Port 2381 in PowerShell or nc -zv <host> 2381 on Linux/macOS.
How do I open port 2381 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 2381/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=2381/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 2381" -Direction Inbound -Protocol TCP -LocalPort 2381 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | compaq-https | Compaq HTTPS |
| UDP | compaq-https | Compaq HTTPS |