Port 8181
intermapper · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | intermapper |
| Registered | 2011-05-09 |
Frequently asked questions
What is port 8181 used for?
Port 8181 is registered with the IANA for intermapper (TCP/UDP). Description: Intermapper network management system; Reserved.
Is port 8181 a well-known port?
No. Port 8181 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 8181 is open?
Locally on Linux with ss -tulpn | grep ':8181\b', on Windows with netstat -ano | findstr :8181. To test a remote host use Test-NetConnection <host> -Port 8181 in PowerShell or nc -zv <host> 8181 on Linux/macOS.
How do I open port 8181 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 8181/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=8181/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 8181" -Direction Inbound -Protocol TCP -LocalPort 8181 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | intermapper | Intermapper network management system |
| UDP | – | Reserved |