All ports
Port693/UDP
connendpPort
693
Protocol
UDP
Category
Well-Known
Service
connendp
What is port 693?
Port 693/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the connendp service.
almanid Connection Endpoint
Useful commands
nmapnmap -p 693 -sV example.comnetcatnc -zv example.com 693curlcurl -v http://example.com:693/telnettelnet example.com 693bash(echo > /dev/udp/example.com/693) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 693/udpDeny
sudo ufw deny 693/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 693 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 693 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=693/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 693" dir=in action=allow protocol=UDP localport=693Security 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- Outdated versions with vulnerabilities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 693/UDP?
Port 693/UDP is associated with the connendp service. almanid Connection Endpoint
Is it safe to expose port 693 to the Internet?
It depends on the service and configuration. Port 693 (connendp) is a Well-Known 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 693 is open?
You can use nmap: `nmap -p 693 -sV example.com`, netcat: `nc -zv example.com 693`, or the bash command: `(echo > /dev/udp/example.com/693) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 693 on my firewall?
On Linux with UFW: `sudo ufw allow 693/udp` (open) or `sudo ufw deny 693/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 693 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 693" dir=in action=allow protocol=UDP localport=693`.
What applications and services use port 693?
Port 693/UDP is used by the connendp service. Specific uses depend on the software and configuration. Check our related tools section for more information.