All ports
Port3738/UDP
versatalkPort
3738
Protocol
UDP
Category
Registered
Service
versatalk
What is port 3738?
Port 3738/UDP is a Registered port, registered with IANA for specific applications. It is associated with the versatalk service.
versaTalk Server Port
Useful commands
nmapnmap -p 3738 -sV example.comnetcatnc -zv example.com 3738curlcurl -v http://example.com:3738/telnettelnet example.com 3738bash(echo > /dev/udp/example.com/3738) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3738/udpDeny
sudo ufw deny 3738/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3738 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3738 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3738/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3738" dir=in action=allow protocol=UDP localport=3738Security 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- Outdated versions with vulnerabilities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 3738/UDP?
Port 3738/UDP is associated with the versatalk service. versaTalk Server Port
Is it safe to expose port 3738 to the Internet?
It depends on the service and configuration. Port 3738 (versatalk) 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 3738 is open?
You can use nmap: `nmap -p 3738 -sV example.com`, netcat: `nc -zv example.com 3738`, or the bash command: `(echo > /dev/udp/example.com/3738) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3738 on my firewall?
On Linux with UFW: `sudo ufw allow 3738/udp` (open) or `sudo ufw deny 3738/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3738 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3738" dir=in action=allow protocol=UDP localport=3738`.
What applications and services use port 3738?
Port 3738/UDP is used by the versatalk service. Specific uses depend on the software and configuration. Check our related tools section for more information.