All ports
Port8181/TCP
intermapperPort
8181
Protocol
TCP
Category
Registered
Service
intermapper
What is port 8181?
Port 8181/TCP is a Registered port, registered with IANA for specific applications. It is associated with the intermapper service.
Intermapper network management system
Useful commands
nmapnmap -p 8181 -sV example.comnetcatnc -zv example.com 8181curlcurl -v http://example.com:8181/telnettelnet example.com 8181bash(echo > /dev/tcp/example.com/8181) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 8181/tcpDeny
sudo ufw deny 8181/tcpiptablesAllow
sudo iptables -A INPUT -p tcp --dport 8181 -j ACCEPTDeny
sudo iptables -D INPUT -p tcp --dport 8181 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=8181/tcpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 8181" dir=in action=allow protocol=TCP localport=8181Security 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- Outdated versions with vulnerabilities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 8181/TCP?
Port 8181/TCP is associated with the intermapper service. Intermapper network management system
Is it safe to expose port 8181 to the Internet?
It depends on the service and configuration. Port 8181 (intermapper) 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 8181 is open?
You can use nmap: `nmap -p 8181 -sV example.com`, netcat: `nc -zv example.com 8181`, or the bash command: `(echo > /dev/tcp/example.com/8181) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 8181 on my firewall?
On Linux with UFW: `sudo ufw allow 8181/tcp` (open) or `sudo ufw deny 8181/tcp` (close). With iptables: `sudo iptables -A INPUT -p tcp --dport 8181 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 8181" dir=in action=allow protocol=TCP localport=8181`.
What applications and services use port 8181?
Port 8181/TCP is used by the intermapper service. Specific uses depend on the software and configuration. Check our related tools section for more information.