Port 6640
ovsdb · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ovsdb |
| Reference | RFC 7047 |
| Registered | 2013-07-31 |
Frequently asked questions
What is port 6640 used for?
Port 6640 is registered with the IANA for ovsdb (TCP/UDP). Description: Open vSwitch Database protocol; Reserved.
Is port 6640 a well-known port?
No. Port 6640 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 6640 is open?
Locally on Linux with ss -tulpn | grep ':6640\b', on Windows with netstat -ano | findstr :6640. To test a remote host use Test-NetConnection <host> -Port 6640 in PowerShell or nc -zv <host> 6640 on Linux/macOS.
How do I open port 6640 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 6640/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6640/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6640" -Direction Inbound -Protocol TCP -LocalPort 6640 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ovsdb | Open vSwitch Database protocol |
| UDP | – | Reserved |