Allow user to control bound IP addresses

Is your feature request related to a problem? Please describe. By default, vite binds to all network interfaces on startup and seems to have no obvious override

Describe the solution you’d like Ideally the user should have control over the bound network interfaces to reduce the attack surface as appropriate. I initially expected the server to bind to localhost by default and/or to have an optional host config setting which when set to 0.0.0.0 would bind all network interfaces.

Additional context As a quick proof of concept I hacked together a fix that allows me to achieve the desired result. I doubt this is appropriate given the switch in default behavior and the confusion it would introduce with host versus hostname but it functions as I’d hope and is shared for reference.

https://github.com/vitejs/vite/compare/master...jlewin:master

[jlewin]

A little late to reply but this looks to work now as desired, where the listening IP can be controlled by the user and limited to localhost only.

Thanks!

for reference

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [vue()],
  server: {
    host: '127.0.0.1'
  }
})

[underfin]

I think it is unnecessary, your code just control ouput which has host or not in terminal.