All ports
Port3983/TCP
eispPort
3983
Protocol
TCP
Category
Registered
Service
eisp
What is port 3983?
Port 3983/TCP is a Registered port, registered with IANA for specific applications. It is associated with the eisp service.
ESRI Image Service
Useful commands
nmapnmap -p 3983 -sV example.comnetcatnc -zv example.com 3983curlcurl -v http://example.com:3983/telnettelnet example.com 3983bash(echo > /dev/tcp/example.com/3983) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 3983/tcpDeny
sudo ufw deny 3983/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 3983 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 3983 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=3983/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 3983" dir=in action=allow protocol=TCP localport=3983Security 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- Outdated versions with vulnerabilities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 3983/TCP?
Port 3983/TCP is associated with the eisp service. ESRI Image Service
Is it safe to expose port 3983 to the Internet?
It depends on the service and configuration. Port 3983 (eisp) 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 3983 is open?
You can use nmap: `nmap -p 3983 -sV example.com`, netcat: `nc -zv example.com 3983`, or the bash command: `(echo > /dev/tcp/example.com/3983) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 3983 on my firewall?
On Linux with UFW: `sudo ufw allow 3983/tcp` (open) or `sudo ufw deny 3983/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 3983 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 3983" dir=in action=allow protocol=TCP localport=3983`.
What applications and services use port 3983?
Port 3983/TCP is used by the eisp service. Specific uses depend on the software and configuration. Check our related tools section for more information.