All ports
Port6640/TCP
ovsdbPort
6640
Protocol
TCP
Category
Registered
Service
ovsdb
What is port 6640?
Port 6640/TCP is a Registered port, registered with IANA for specific applications. It is associated with the ovsdb service.
Open vSwitch Database protocol
Useful commands
nmapnmap -p 6640 -sV example.comnetcatnc -zv example.com 6640curlcurl -v http://example.com:6640/telnettelnet example.com 6640bash(echo > /dev/tcp/example.com/6640) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 6640/tcpDeny
sudo ufw deny 6640/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 6640 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 6640 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=6640/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 6640" dir=in action=allow protocol=TCP localport=6640Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 6640/TCP?
Port 6640/TCP is associated with the ovsdb service. Open vSwitch Database protocol
Is it safe to expose port 6640 to the Internet?
It depends on the service and configuration. Port 6640 (ovsdb) is a Registered port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 6640 is open?
You can use nmap: `nmap -p 6640 -sV example.com`, netcat: `nc -zv example.com 6640`, or the bash command: `(echo > /dev/tcp/example.com/6640) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 6640 on my firewall?
On Linux with UFW: `sudo ufw allow 6640/tcp` (open) or `sudo ufw deny 6640/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 6640 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 6640" dir=in action=allow protocol=TCP localport=6640`.
What applications and services use port 6640?
Port 6640/TCP is used by the ovsdb service. Specific uses depend on the software and configuration. Check our related tools section for more information.