All ports
Port3982/UDP
eisPort
3982
Protocol
UDP
Category
Registered
Service
eis
What is port 3982?
Port 3982/UDP is a Registered port, registered with IANA for specific applications. It is associated with the eis service.
ESRI Image Server
Useful commands
nmapnmap -p 3982 -sV example.comnetcatnc -zv example.com 3982curlcurl -v http://example.com:3982/telnettelnet example.com 3982bash(echo > /dev/udp/example.com/3982) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3982/udpDeny
sudo ufw deny 3982/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 3982 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 3982 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3982/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3982" dir=in action=allow protocol=UDP localport=3982Security 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- Outdated versions with vulnerabilities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 3982/UDP?
Port 3982/UDP is associated with the eis service. ESRI Image Server
Is it safe to expose port 3982 to the Internet?
It depends on the service and configuration. Port 3982 (eis) 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 3982 is open?
You can use nmap: `nmap -p 3982 -sV example.com`, netcat: `nc -zv example.com 3982`, or the bash command: `(echo > /dev/udp/example.com/3982) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3982 on my firewall?
On Linux with UFW: `sudo ufw allow 3982/udp` (open) or `sudo ufw deny 3982/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 3982 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3982" dir=in action=allow protocol=UDP localport=3982`.
What applications and services use port 3982?
Port 3982/UDP is used by the eis service. Specific uses depend on the software and configuration. Check our related tools section for more information.