Port 3307
opsession-prxy · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | opsession-prxy |
Frequently asked questions
What is port 3307 used for?
Port 3307 is registered with the IANA for opsession-prxy (TCP/UDP). Description: OP Session Proxy.
Is port 3307 a well-known port?
No. Port 3307 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3307 is open?
Locally on Linux with ss -tulpn | grep ':3307\b', on Windows with netstat -ano | findstr :3307. To test a remote host use Test-NetConnection <host> -Port 3307 in PowerShell or nc -zv <host> 3307 on Linux/macOS.
How do I open port 3307 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 3307/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3307/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3307" -Direction Inbound -Protocol TCP -LocalPort 3307 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | opsession-prxy | OP Session Proxy |
| UDP | opsession-prxy | OP Session Proxy |