All ports
Port3847/TCP
msfw-controlPort
3847
Protocol
TCP
Category
Registered
Service
msfw-control
What is port 3847?
Port 3847/TCP is a Registered port, registered with IANA for specific applications. It is associated with the msfw-control service.
MS Firewall Control
Useful commands
nmapnmap -p 3847 -sV example.comnetcatnc -zv example.com 3847curlcurl -v http://example.com:3847/telnettelnet example.com 3847bash(echo > /dev/tcp/example.com/3847) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3847/tcpDeny
sudo ufw deny 3847/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3847 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3847 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3847/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3847" dir=in action=allow protocol=TCP localport=3847Security 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- Outdated versions with vulnerabilities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 3847/TCP?
Port 3847/TCP is associated with the msfw-control service. MS Firewall Control
Is it safe to expose port 3847 to the Internet?
It depends on the service and configuration. Port 3847 (msfw-control) 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 3847 is open?
You can use nmap: `nmap -p 3847 -sV example.com`, netcat: `nc -zv example.com 3847`, or the bash command: `(echo > /dev/tcp/example.com/3847) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3847 on my firewall?
On Linux with UFW: `sudo ufw allow 3847/tcp` (open) or `sudo ufw deny 3847/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3847 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3847" dir=in action=allow protocol=TCP localport=3847`.
What applications and services use port 3847?
Port 3847/TCP is used by the msfw-control service. Specific uses depend on the software and configuration. Check our related tools section for more information.