All ports
Port34963/UDP
profinet-rtmPort
34963
Protocol
UDP
Category
Registered
Service
profinet-rtm
What is port 34963?
Port 34963/UDP is a Registered port, registered with IANA for specific applications. It is associated with the profinet-rtm service.
PROFInet RT Multicast
Useful commands
nmapnmap -p 34963 -sV example.comnetcatnc -zv example.com 34963curlcurl -v http://example.com:34963/telnettelnet example.com 34963bash(echo > /dev/udp/example.com/34963) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 34963/udpDeny
sudo ufw deny 34963/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 34963 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 34963 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=34963/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 34963" dir=in action=allow protocol=UDP localport=34963Security 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- Outdated versions with vulnerabilities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 34963/UDP?
Port 34963/UDP is associated with the profinet-rtm service. PROFInet RT Multicast
Is it safe to expose port 34963 to the Internet?
It depends on the service and configuration. Port 34963 (profinet-rtm) 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 34963 is open?
You can use nmap: `nmap -p 34963 -sV example.com`, netcat: `nc -zv example.com 34963`, or the bash command: `(echo > /dev/udp/example.com/34963) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 34963 on my firewall?
On Linux with UFW: `sudo ufw allow 34963/udp` (open) or `sudo ufw deny 34963/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 34963 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 34963" dir=in action=allow protocol=UDP localport=34963`.
What applications and services use port 34963?
Port 34963/UDP is used by the profinet-rtm service. Specific uses depend on the software and configuration. Check our related tools section for more information.