All ports
Port129/UDP
pwdgenPort
129
Protocol
UDP
Category
Well-Known
Service
pwdgen
What is port 129?
Port 129/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the pwdgen service.
Password Generator Protocol
Useful commands
nmapnmap -p 129 -sV example.comnetcatnc -zv example.com 129curlcurl -v http://example.com:129/telnettelnet example.com 129bash(echo > /dev/udp/example.com/129) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 129/udpDeny
sudo ufw deny 129/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 129 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 129 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=129/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 129" dir=in action=allow protocol=UDP localport=129Security 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- Outdated versions with vulnerabilities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 129/UDP?
Port 129/UDP is associated with the pwdgen service. Password Generator Protocol
Is it safe to expose port 129 to the Internet?
It depends on the service and configuration. Port 129 (pwdgen) is a Well-Known 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 129 is open?
You can use nmap: `nmap -p 129 -sV example.com`, netcat: `nc -zv example.com 129`, or the bash command: `(echo > /dev/udp/example.com/129) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 129 on my firewall?
On Linux with UFW: `sudo ufw allow 129/udp` (open) or `sudo ufw deny 129/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 129 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 129" dir=in action=allow protocol=UDP localport=129`.
What applications and services use port 129?
Port 129/UDP is used by the pwdgen service. Specific uses depend on the software and configuration. Check our related tools section for more information.