All ports
Port1506/UDP
utcdPort
1506
Protocol
UDP
Category
Registered
Service
utcd
What is port 1506?
Port 1506/UDP is a Registered port, registered with IANA for specific applications. It is associated with the utcd service.
Universal Time daemon (utcd)
Useful commands
nmapnmap -p 1506 -sV example.comnetcatnc -zv example.com 1506curlcurl -v http://example.com:1506/telnettelnet example.com 1506bash(echo > /dev/udp/example.com/1506) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 1506/udpDeny
sudo ufw deny 1506/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 1506 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 1506 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=1506/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 1506" dir=in action=allow protocol=UDP localport=1506Security 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- Outdated versions with vulnerabilities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 1506/UDP?
Port 1506/UDP is associated with the utcd service. Universal Time daemon (utcd)
Is it safe to expose port 1506 to the Internet?
It depends on the service and configuration. Port 1506 (utcd) 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 1506 is open?
You can use nmap: `nmap -p 1506 -sV example.com`, netcat: `nc -zv example.com 1506`, or the bash command: `(echo > /dev/udp/example.com/1506) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 1506 on my firewall?
On Linux with UFW: `sudo ufw allow 1506/udp` (open) or `sudo ufw deny 1506/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 1506 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 1506" dir=in action=allow protocol=UDP localport=1506`.
What applications and services use port 1506?
Port 1506/UDP is used by the utcd service. Specific uses depend on the software and configuration. Check our related tools section for more information.