Update domain name used for forwarding

[weelillad]

Current implementation works for mac, but (probably) not for Windows nor Linux. Changing the domain name to one that aligns with what should be docker's intended implementation.

Refer to docker/for-linux#264 for an explanation of what's available for windows and mac, as well as the issue with the same domain name on Linux.

[soedar]

Thanks!

[weelillad]

What's the status on this PR? It's causing problems on Linux because for some reason docker.for.mac.localhost is valid when called on Linux from within the container:

/ # getent hosts docker.for.mac.localhost
::1               docker.for.mac.localhost  docker.for.mac.localhost
/ # getent hosts host.docker.internal
/ # 

Therefore socat still tries to forward to 127.0.0.1, when the correct IP should be 172.x.x.x.

[weelillad]

What's the status on this PR? It's causing problems on Linux because for some reason docker.for.mac.localhost is valid when called on Linux from within the container:

/ # getent hosts docker.for.mac.localhost
::1               docker.for.mac.localhost  docker.for.mac.localhost
/ # getent hosts host.docker.internal
/ # 

Therefore socat still tries to forward to 127.0.0.1, when the correct IP should be 172.x.x.x.

[weelillad]

What's the status on this PR? It's causing problems on Linux because for some reason docker.for.mac.localhost is valid when called on Linux from within the container:

/ # getent hosts docker.for.mac.localhost
::1               docker.for.mac.localhost  docker.for.mac.localhost
/ # getent hosts host.docker.internal
/ # 

Therefore socat still tries to forward to 127.0.0.1, when the correct IP should be 172.x.x.x.