All ports
Port2667/UDP
alarm-clock-sPort
2667
Protocol
UDP
Category
Registered
Service
alarm-clock-s
What is port 2667?
Port 2667/UDP is a Registered port, registered with IANA for specific applications. It is associated with the alarm-clock-s service.
Alarm Clock Server
Useful commands
nmapnmap -p 2667 -sV example.comnetcatnc -zv example.com 2667curlcurl -v http://example.com:2667/telnettelnet example.com 2667bash(echo > /dev/udp/example.com/2667) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 2667/udpDeny
sudo ufw deny 2667/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 2667 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 2667 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=2667/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 2667" dir=in action=allow protocol=UDP localport=2667Security 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- Outdated versions with vulnerabilities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 2667/UDP?
Port 2667/UDP is associated with the alarm-clock-s service. Alarm Clock Server
Is it safe to expose port 2667 to the Internet?
It depends on the service and configuration. Port 2667 (alarm-clock-s) 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 2667 is open?
You can use nmap: `nmap -p 2667 -sV example.com`, netcat: `nc -zv example.com 2667`, or the bash command: `(echo > /dev/udp/example.com/2667) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 2667 on my firewall?
On Linux with UFW: `sudo ufw allow 2667/udp` (open) or `sudo ufw deny 2667/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 2667 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 2667" dir=in action=allow protocol=UDP localport=2667`.
What applications and services use port 2667?
Port 2667/UDP is used by the alarm-clock-s service. Specific uses depend on the software and configuration. Check our related tools section for more information.