Port 3337
directv-catlg · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | directv-catlg |
Frequently asked questions
What is port 3337 used for?
Port 3337 is registered with the IANA for directv-catlg (TCP/UDP). Description: Direct TV Data Catalog.
Is port 3337 a well-known port?
No. Port 3337 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3337 is open?
Locally on Linux with ss -tulpn | grep ':3337\b', on Windows with netstat -ano | findstr :3337. To test a remote host use Test-NetConnection <host> -Port 3337 in PowerShell or nc -zv <host> 3337 on Linux/macOS.
How do I open port 3337 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 3337/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3337/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3337" -Direction Inbound -Protocol TCP -LocalPort 3337 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | directv-catlg | Direct TV Data Catalog |
| UDP | directv-catlg | Direct TV Data Catalog |