All ports
Port3104/UDP
autocuetimePort
3104
Protocol
UDP
Category
Registered
Service
autocuetime
What is port 3104?
Port 3104/UDP is a Registered port, registered with IANA for specific applications. It is associated with the autocuetime service.
Autocue Time Service
Useful commands
nmapnmap -p 3104 -sV example.comnetcatnc -zv example.com 3104curlcurl -v http://example.com:3104/telnettelnet example.com 3104bash(echo > /dev/udp/example.com/3104) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3104/udpDeny
sudo ufw deny 3104/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3104 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3104 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3104/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3104" dir=in action=allow protocol=UDP localport=3104Security 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- Outdated versions with vulnerabilities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 3104/UDP?
Port 3104/UDP is associated with the autocuetime service. Autocue Time Service
Is it safe to expose port 3104 to the Internet?
It depends on the service and configuration. Port 3104 (autocuetime) 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 3104 is open?
You can use nmap: `nmap -p 3104 -sV example.com`, netcat: `nc -zv example.com 3104`, or the bash command: `(echo > /dev/udp/example.com/3104) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3104 on my firewall?
On Linux with UFW: `sudo ufw allow 3104/udp` (open) or `sudo ufw deny 3104/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3104 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3104" dir=in action=allow protocol=UDP localport=3104`.
What applications and services use port 3104?
Port 3104/UDP is used by the autocuetime service. Specific uses depend on the software and configuration. Check our related tools section for more information.