All ports
Port112/UDP
mcidasPort
112
Protocol
UDP
Category
Well-Known
Service
mcidas
What is port 112?
Port 112/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the mcidas service.
McIDAS Data Transmission Protocol
Useful commands
nmapnmap -p 112 -sV example.comnetcatnc -zv example.com 112curlcurl -v http://example.com:112/telnettelnet example.com 112bash(echo > /dev/udp/example.com/112) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 112/udpDeny
sudo ufw deny 112/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 112 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 112 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=112/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 112" dir=in action=allow protocol=UDP localport=112Security 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- Outdated versions with vulnerabilities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 112/UDP?
Port 112/UDP is associated with the mcidas service. McIDAS Data Transmission Protocol
Is it safe to expose port 112 to the Internet?
It depends on the service and configuration. Port 112 (mcidas) 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 112 is open?
You can use nmap: `nmap -p 112 -sV example.com`, netcat: `nc -zv example.com 112`, or the bash command: `(echo > /dev/udp/example.com/112) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 112 on my firewall?
On Linux with UFW: `sudo ufw allow 112/udp` (open) or `sudo ufw deny 112/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 112 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 112" dir=in action=allow protocol=UDP localport=112`.
What applications and services use port 112?
Port 112/UDP is used by the mcidas service. Specific uses depend on the software and configuration. Check our related tools section for more information.