Modern front‑end and back‑end frameworks often spin up a development server on a random or user‑specified port. For example:
If a line appears, note the number at the far right (the Process ID or PID). You can terminate it using taskkill /PID /F . : lsof -i :11501 Use code with caution. localhost-11501
If you attempt to load http://localhost:11501 in your browser or call it via code and receive an error (such as ERR_CONNECTION_REFUSED ), use the following systematic checklist to diagnose the issue. 1. Verify the Port is Actively Listening Modern front‑end and back‑end frameworks often spin up
Add an explicit inbound/outbound rule in Windows Defender Firewall or Linux iptables / ufw to allow traffic on port 11501. Step 4: Verify Hosts File Mapping localhost-11501
kubectl port-forward pod/my-pod 11501:8080
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Modern front‑end and back‑end frameworks often spin up a development server on a random or user‑specified port. For example:
If a line appears, note the number at the far right (the Process ID or PID). You can terminate it using taskkill /PID /F . : lsof -i :11501 Use code with caution.
If you attempt to load http://localhost:11501 in your browser or call it via code and receive an error (such as ERR_CONNECTION_REFUSED ), use the following systematic checklist to diagnose the issue. 1. Verify the Port is Actively Listening
Add an explicit inbound/outbound rule in Windows Defender Firewall or Linux iptables / ufw to allow traffic on port 11501. Step 4: Verify Hosts File Mapping
kubectl port-forward pod/my-pod 11501:8080