All ports
Port3951/TCP
pwgippfaxPort
3951
Protocol
TCP
Category
Registered
Service
pwgippfax
What is port 3951?
Port 3951/TCP is a Registered port, registered with IANA for specific applications. It is associated with the pwgippfax service.
PWG IPP Facsimile
Useful commands
nmapnmap -p 3951 -sV example.comnetcatnc -zv example.com 3951curlcurl -v http://example.com:3951/telnettelnet example.com 3951bash(echo > /dev/tcp/example.com/3951) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3951/tcpDeny
sudo ufw deny 3951/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3951 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3951 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3951/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3951" dir=in action=allow protocol=TCP localport=3951Security 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- Outdated versions with vulnerabilities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 3951/TCP?
Port 3951/TCP is associated with the pwgippfax service. PWG IPP Facsimile
Is it safe to expose port 3951 to the Internet?
It depends on the service and configuration. Port 3951 (pwgippfax) 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 3951 is open?
You can use nmap: `nmap -p 3951 -sV example.com`, netcat: `nc -zv example.com 3951`, or the bash command: `(echo > /dev/tcp/example.com/3951) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3951 on my firewall?
On Linux with UFW: `sudo ufw allow 3951/tcp` (open) or `sudo ufw deny 3951/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3951 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3951" dir=in action=allow protocol=TCP localport=3951`.
What applications and services use port 3951?
Port 3951/TCP is used by the pwgippfax service. Specific uses depend on the software and configuration. Check our related tools section for more information.