All ports
Port3111/UDP
wsynchPort
3111
Protocol
UDP
Category
Registered
Service
wsynch
What is port 3111?
Port 3111/UDP is a Registered port, registered with IANA for specific applications. It is associated with the wsynch service.
Web Synchronous Services
Useful commands
nmapnmap -p 3111 -sV example.comnetcatnc -zv example.com 3111curlcurl -v http://example.com:3111/telnettelnet example.com 3111bash(echo > /dev/udp/example.com/3111) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3111/udpDeny
sudo ufw deny 3111/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3111 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3111 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3111/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3111" dir=in action=allow protocol=UDP localport=3111Security 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- Outdated versions with vulnerabilities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 3111/UDP?
Port 3111/UDP is associated with the wsynch service. Web Synchronous Services
Is it safe to expose port 3111 to the Internet?
It depends on the service and configuration. Port 3111 (wsynch) 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 3111 is open?
You can use nmap: `nmap -p 3111 -sV example.com`, netcat: `nc -zv example.com 3111`, or the bash command: `(echo > /dev/udp/example.com/3111) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3111 on my firewall?
On Linux with UFW: `sudo ufw allow 3111/udp` (open) or `sudo ufw deny 3111/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3111 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3111" dir=in action=allow protocol=UDP localport=3111`.
What applications and services use port 3111?
Port 3111/UDP is used by the wsynch service. Specific uses depend on the software and configuration. Check our related tools section for more information.