All ports
Port41111/UDP
fs-qosPort
41111
Protocol
UDP
Category
Registered
Service
fs-qos
What is port 41111?
Port 41111/UDP is a Registered port, registered with IANA for specific applications. It is associated with the fs-qos service.
Foursticks QoS Protocol
Useful commands
nmapnmap -p 41111 -sV example.comnetcatnc -zv example.com 41111curlcurl -v http://example.com:41111/telnettelnet example.com 41111bash(echo > /dev/udp/example.com/41111) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 41111/udpDeny
sudo ufw deny 41111/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 41111 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 41111 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=41111/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 41111" dir=in action=allow protocol=UDP localport=41111Security 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- Outdated versions with vulnerabilities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 41111/UDP?
Port 41111/UDP is associated with the fs-qos service. Foursticks QoS Protocol
Is it safe to expose port 41111 to the Internet?
It depends on the service and configuration. Port 41111 (fs-qos) 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 41111 is open?
You can use nmap: `nmap -p 41111 -sV example.com`, netcat: `nc -zv example.com 41111`, or the bash command: `(echo > /dev/udp/example.com/41111) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 41111 on my firewall?
On Linux with UFW: `sudo ufw allow 41111/udp` (open) or `sudo ufw deny 41111/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 41111 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 41111" dir=in action=allow protocol=UDP localport=41111`.
What applications and services use port 41111?
Port 41111/UDP is used by the fs-qos service. Specific uses depend on the software and configuration. Check our related tools section for more information.