All ports
Port2147/UDP
lv-authPort
2147
Protocol
UDP
Category
Registered
Service
lv-auth
What is port 2147?
Port 2147/UDP is a Registered port, registered with IANA for specific applications. It is associated with the lv-auth service.
Live Vault Authentication
Useful commands
nmapnmap -p 2147 -sV example.comnetcatnc -zv example.com 2147curlcurl -v http://example.com:2147/telnettelnet example.com 2147bash(echo > /dev/udp/example.com/2147) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2147/udpDeny
sudo ufw deny 2147/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 2147 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 2147 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2147/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2147" dir=in action=allow protocol=UDP localport=2147Security 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- Outdated versions with vulnerabilities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 2147/UDP?
Port 2147/UDP is associated with the lv-auth service. Live Vault Authentication
Is it safe to expose port 2147 to the Internet?
It depends on the service and configuration. Port 2147 (lv-auth) 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 2147 is open?
You can use nmap: `nmap -p 2147 -sV example.com`, netcat: `nc -zv example.com 2147`, or the bash command: `(echo > /dev/udp/example.com/2147) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2147 on my firewall?
On Linux with UFW: `sudo ufw allow 2147/udp` (open) or `sudo ufw deny 2147/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 2147 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2147" dir=in action=allow protocol=UDP localport=2147`.
What applications and services use port 2147?
Port 2147/UDP is used by the lv-auth service. Specific uses depend on the software and configuration. Check our related tools section for more information.