All ports
Port33434/UDP
traceroutePort
33434
Protocol
UDP
Category
Registered
Service
traceroute
What is port 33434?
Port 33434/UDP is a Registered port, registered with IANA for specific applications. It is associated with the traceroute service.
traceroute use
Useful commands
nmapnmap -p 33434 -sV example.comnetcatnc -zv example.com 33434curlcurl -v http://example.com:33434/telnettelnet example.com 33434bash(echo > /dev/udp/example.com/33434) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 33434/udpDeny
sudo ufw deny 33434/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 33434 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 33434 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=33434/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 33434" dir=in action=allow protocol=UDP localport=33434Security 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- Outdated versions with vulnerabilities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 33434/UDP?
Port 33434/UDP is associated with the traceroute service. traceroute use
Is it safe to expose port 33434 to the Internet?
It depends on the service and configuration. Port 33434 (traceroute) 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 33434 is open?
You can use nmap: `nmap -p 33434 -sV example.com`, netcat: `nc -zv example.com 33434`, or the bash command: `(echo > /dev/udp/example.com/33434) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 33434 on my firewall?
On Linux with UFW: `sudo ufw allow 33434/udp` (open) or `sudo ufw deny 33434/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 33434 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 33434" dir=in action=allow protocol=UDP localport=33434`.
What applications and services use port 33434?
Port 33434/UDP is used by the traceroute service. Specific uses depend on the software and configuration. Check our related tools section for more information.