All ports
Port3429/UDP
gcspPort
3429
Protocol
UDP
Category
Registered
Service
gcsp
What is port 3429?
Port 3429/UDP is a Registered port, registered with IANA for specific applications. It is associated with the gcsp service.
GCSP user port
Useful commands
nmapnmap -p 3429 -sV example.comnetcatnc -zv example.com 3429curlcurl -v http://example.com:3429/telnettelnet example.com 3429bash(echo > /dev/udp/example.com/3429) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3429/udpDeny
sudo ufw deny 3429/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3429 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3429 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3429/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3429" dir=in action=allow protocol=UDP localport=3429Security 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- Outdated versions with vulnerabilities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 3429/UDP?
Port 3429/UDP is associated with the gcsp service. GCSP user port
Is it safe to expose port 3429 to the Internet?
It depends on the service and configuration. Port 3429 (gcsp) 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 3429 is open?
You can use nmap: `nmap -p 3429 -sV example.com`, netcat: `nc -zv example.com 3429`, or the bash command: `(echo > /dev/udp/example.com/3429) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3429 on my firewall?
On Linux with UFW: `sudo ufw allow 3429/udp` (open) or `sudo ufw deny 3429/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3429 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3429" dir=in action=allow protocol=UDP localport=3429`.
What applications and services use port 3429?
Port 3429/UDP is used by the gcsp service. Specific uses depend on the software and configuration. Check our related tools section for more information.