All ports
Port6771/TCP
plysrv-httpsPort
6771
Protocol
TCP
Category
Registered
Service
plysrv-https
What is port 6771?
Port 6771/TCP is a Registered port, registered with IANA for specific applications. It is associated with the plysrv-https service.
PolyServe https
Useful commands
nmapnmap -p 6771 -sV example.comnetcatnc -zv example.com 6771curlcurl -v http://example.com:6771/telnettelnet example.com 6771bash(echo > /dev/tcp/example.com/6771) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 6771/tcpDeny
sudo ufw deny 6771/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 6771 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 6771 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=6771/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 6771" dir=in action=allow protocol=TCP localport=6771Security Risks
- Incorrect TLS/SSL configuration
- Man-in-the-Middle attacks if certificate is invalid
- Protocol implementation vulnerabilities
- Exposure of web services with weak authentication
Frequently Asked Questions
What service runs on port 6771/TCP?
Port 6771/TCP is associated with the plysrv-https service. PolyServe https
Is it safe to expose port 6771 to the Internet?
It depends on the service and configuration. Port 6771 (plysrv-https) 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 6771 is open?
You can use nmap: `nmap -p 6771 -sV example.com`, netcat: `nc -zv example.com 6771`, or the bash command: `(echo > /dev/tcp/example.com/6771) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 6771 on my firewall?
On Linux with UFW: `sudo ufw allow 6771/tcp` (open) or `sudo ufw deny 6771/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 6771 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 6771" dir=in action=allow protocol=TCP localport=6771`.
What applications and services use port 6771?
Port 6771/TCP is used by the plysrv-https service. Specific uses depend on the software and configuration. Check our related tools section for more information.