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Daniel Doubrovkine

aka dB., CTO at artsy.net, fun at playplay.io, NYC

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This was a stubborn one.

Was trying to use Docker via Dusty for the first time.

docker-machine --debug start dusty

This would hang with the following.

Testing TCP connection to: localhost:64623
Testing TCP connection to: localhost:64623
Testing TCP connection to: localhost:64623
...

No problems connecting to localhost:64623 via ssh localhost -p 64623.

No issues navigating to http://localhost:64623. I would see a page with the SSH server version.

SSH-2.0-OpenSSH_6.4

The culprit was this entry in /etc/hosts, from some experimentation on blocking ads via a hosts file.

0 localhost

The fix was to properly define localhost.

127.0.0.1    localhost
::1 localhost

I opened docker-machine#1946 to improve the error message here.