All ports
Port3735/UDP
pwdisPort
3735
Protocol
UDP
Category
Registered
Service
pwdis
What is port 3735?
Port 3735/UDP is a Registered port, registered with IANA for specific applications. It is associated with the pwdis service.
Password Distribution
Useful commands
nmapnmap -p 3735 -sV example.comnetcatnc -zv example.com 3735curlcurl -v http://example.com:3735/telnettelnet example.com 3735bash(echo > /dev/udp/example.com/3735) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3735/udpDeny
sudo ufw deny 3735/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3735 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3735 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3735/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3735" dir=in action=allow protocol=UDP localport=3735Security 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- Outdated versions with vulnerabilities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 3735/UDP?
Port 3735/UDP is associated with the pwdis service. Password Distribution
Is it safe to expose port 3735 to the Internet?
It depends on the service and configuration. Port 3735 (pwdis) 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 3735 is open?
You can use nmap: `nmap -p 3735 -sV example.com`, netcat: `nc -zv example.com 3735`, or the bash command: `(echo > /dev/udp/example.com/3735) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3735 on my firewall?
On Linux with UFW: `sudo ufw allow 3735/udp` (open) or `sudo ufw deny 3735/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3735 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3735" dir=in action=allow protocol=UDP localport=3735`.
What applications and services use port 3735?
Port 3735/UDP is used by the pwdis service. Specific uses depend on the software and configuration. Check our related tools section for more information.