All ports
Port3956/TCP
gvcpPort
3956
Protocol
TCP
Category
Registered
Service
gvcp
What is port 3956?
Port 3956/TCP is a Registered port, registered with IANA for specific applications. It is associated with the gvcp service.
GigE Vision Control
Useful commands
nmapnmap -p 3956 -sV example.comnetcatnc -zv example.com 3956curlcurl -v http://example.com:3956/telnettelnet example.com 3956bash(echo > /dev/tcp/example.com/3956) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3956/tcpDeny
sudo ufw deny 3956/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3956 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3956 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3956/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3956" dir=in action=allow protocol=TCP localport=3956Security 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- Outdated versions with vulnerabilities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 3956/TCP?
Port 3956/TCP is associated with the gvcp service. GigE Vision Control
Is it safe to expose port 3956 to the Internet?
It depends on the service and configuration. Port 3956 (gvcp) 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 3956 is open?
You can use nmap: `nmap -p 3956 -sV example.com`, netcat: `nc -zv example.com 3956`, or the bash command: `(echo > /dev/tcp/example.com/3956) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3956 on my firewall?
On Linux with UFW: `sudo ufw allow 3956/tcp` (open) or `sudo ufw deny 3956/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3956 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3956" dir=in action=allow protocol=TCP localport=3956`.
What applications and services use port 3956?
Port 3956/TCP is used by the gvcp service. Specific uses depend on the software and configuration. Check our related tools section for more information.