All ports
Port211/UDP
914c/gPort
211
Protocol
UDP
Category
Well-Known
Service
914c/g
What is port 211?
Port 211/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the 914c/g service.
Texas Instruments 914C/G Terminal
Useful commands
nmapnmap -p 211 -sV example.comnetcatnc -zv example.com 211curlcurl -v http://example.com:211/telnettelnet example.com 211bash(echo > /dev/udp/example.com/211) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 211/udpDeny
sudo ufw deny 211/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 211 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 211 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=211/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 211" dir=in action=allow protocol=UDP localport=211Security 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- Outdated versions with vulnerabilities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 211/UDP?
Port 211/UDP is associated with the 914c/g service. Texas Instruments 914C/G Terminal
Is it safe to expose port 211 to the Internet?
It depends on the service and configuration. Port 211 (914c/g) 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 211 is open?
You can use nmap: `nmap -p 211 -sV example.com`, netcat: `nc -zv example.com 211`, or the bash command: `(echo > /dev/udp/example.com/211) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 211 on my firewall?
On Linux with UFW: `sudo ufw allow 211/udp` (open) or `sudo ufw deny 211/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 211 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 211" dir=in action=allow protocol=UDP localport=211`.
What applications and services use port 211?
Port 211/UDP is used by the 914c/g service. Specific uses depend on the software and configuration. Check our related tools section for more information.