All ports
Port4940/UDP
eq-office-4940Port
4940
Protocol
UDP
Category
Registered
Service
eq-office-4940
What is port 4940?
Port 4940/UDP is a Registered port, registered with IANA for specific applications. It is associated with the eq-office-4940 service.
Equitrac Office
Useful commands
nmapnmap -p 4940 -sV example.comnetcatnc -zv example.com 4940curlcurl -v http://example.com:4940/telnettelnet example.com 4940bash(echo > /dev/udp/example.com/4940) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 4940/udpDeny
sudo ufw deny 4940/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 4940 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 4940 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=4940/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 4940" dir=in action=allow protocol=UDP localport=4940Security 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- Outdated versions with vulnerabilities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 4940/UDP?
Port 4940/UDP is associated with the eq-office-4940 service. Equitrac Office
Is it safe to expose port 4940 to the Internet?
It depends on the service and configuration. Port 4940 (eq-office-4940) 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 4940 is open?
You can use nmap: `nmap -p 4940 -sV example.com`, netcat: `nc -zv example.com 4940`, or the bash command: `(echo > /dev/udp/example.com/4940) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 4940 on my firewall?
On Linux with UFW: `sudo ufw allow 4940/udp` (open) or `sudo ufw deny 4940/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 4940 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 4940" dir=in action=allow protocol=UDP localport=4940`.
What applications and services use port 4940?
Port 4940/UDP is used by the eq-office-4940 service. Specific uses depend on the software and configuration. Check our related tools section for more information.