All ports
Port3119/UDP
d2000kernelPort
3119
Protocol
UDP
Category
Registered
Service
d2000kernel
What is port 3119?
Port 3119/UDP is a Registered port, registered with IANA for specific applications. It is associated with the d2000kernel service.
D2000 Kernel Port
Useful commands
nmapnmap -p 3119 -sV example.comnetcatnc -zv example.com 3119curlcurl -v http://example.com:3119/telnettelnet example.com 3119bash(echo > /dev/udp/example.com/3119) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3119/udpDeny
sudo ufw deny 3119/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3119 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3119 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3119/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3119" dir=in action=allow protocol=UDP localport=3119Security 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- Outdated versions with vulnerabilities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 3119/UDP?
Port 3119/UDP is associated with the d2000kernel service. D2000 Kernel Port
Is it safe to expose port 3119 to the Internet?
It depends on the service and configuration. Port 3119 (d2000kernel) 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 3119 is open?
You can use nmap: `nmap -p 3119 -sV example.com`, netcat: `nc -zv example.com 3119`, or the bash command: `(echo > /dev/udp/example.com/3119) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3119 on my firewall?
On Linux with UFW: `sudo ufw allow 3119/udp` (open) or `sudo ufw deny 3119/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3119 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3119" dir=in action=allow protocol=UDP localport=3119`.
What applications and services use port 3119?
Port 3119/UDP is used by the d2000kernel service. Specific uses depend on the software and configuration. Check our related tools section for more information.