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vscode-remote

Specify listening address 0.0.0.0 for forwarded port in VSCode Remote Containers

I am developing inside a docker container using the VSCode Remote Containers extension. I start a server inside the container which listens at port 3342 and would like to access the webpage using other devices in the same network.

I forward port 3342 inside the Ports tab and I am able to open the webpage in my host OS using localhost:3342 and 127.0.0.1:3342, but failed when using my local IP address 10.10.11.90:3342.

I checked the listening ports in my host OS:

> sudo lsof -nP -iTCP:3342 | grep LISTEN
Code\x20H 4181 alvin   27u  IPv4 0x65c113c13860c1b7      0t0  TCP 127.0.0.1:3342 (LISTEN)

It seems that VSCode is only listening at 127.0.0.1.

Is there a way for me to tell VSCode to listen at 0.0.0.0 so that it accepts requests from all network interface?

My configuration:

  • OS: macOS 10.15.7
  • VSCode: 1.57.0
  • VSCode Remote Containers extension: 0.183.0
Solution

  • In VSCode settings, set to "All Interfaces" here:

    Remote: Local Port Host

    allInterfaces

    If it's set to "localhost", devContainers forwarded ports will only listen to 127.0.0.1.

    When set to "allInterfaces", it will listen to 0.0.0.0.

    See screenshot for context: enter image description here