Consider error messages or host resolution in Bind IP configuration.

[wyc]

Expected Behavior

I expect the node configuration screen to allow me to enter hostnames such as localhost or my-server.domain.com. Instead, it crashes the application.

Current Behavior

The application crashes, as in https://pastebin.com/rNSeTrtK

Possible Solution

Either:

• Add an error message from the server letting the client know that it's a faulty configuration. Perhaps this could also be a frontend-only check.
• Implement hostname resolution at the server end in addition to checks for bad input.

Steps to Reproduce (for bugs)

1. Open Fauxton
2. Click the settings icon
3. Configure a single node
4. Populate field, with localhost in the Bind IP field
5. Submit

Context

From chat:

171710 < wayne> i'm experiencing crashing when i go to the settings menu option in fauxton and click "configure a single node"
171804 < wayne> i've yet to pull logs, in process of doing that
171925 < wayne> https://pastebin.com/rNSeTrtK
171951 < wayne> and yikes, it looks like the password gets leaked in the logs
172037 < wayne> did i miss a step?
172106 < wayne> i can work on excavating the erl.dump from the container if it would help
172319 <+rnewson> 'invalid_bind_address' is a problem
172329 <+rnewson> you need to specify an ip address, not a name
172353 < wayne> ah got it. no host resolution
172413 < wayne> could this be a good issue to open? it would improve the user experience
172441 < wayne> maybe an error message from the server or even consider implementing host resolution

Your Environment

• Version used: 2.1
• Browser Name and version: Chromium
• Operating System and version (desktop or mobile): Desktop
• Link to your project: N/A

[janl]

+1, this would be a great addition for a first-time contributor. Wanna work on a PR? Happy to help get you started.

[wyc]

Thanks for your response. Sure, happy to attempt a resolution with tests. Do you think we should error or support hostname resolution?

[wohali]

@janl What needs to be done here to move forward?

[janl]

Closing in favour of #1439