Docker login from cmd line yields i/o timeouts

Question

I'm trying to login to docker from the Docker Quickstart Terminal but it doesn't work. I always get an error saying: "Error response from daemon: Server Error: Post https://index.docker.io/v1/users/ : dial tcp: i/o timeout"

I have been working with docker the last few days and was always able to login and push/pull stuff. The only thing different I can think of is that I'm currently on a different Wifi.

Any help is greatly appreciated, thanks.

Karsten

Answer 1

This is a known issue, and is probably related to VirtualBox; after switching networks, boot2docker/VirtualBox sometimes looses connectivity or uses incorrect DNS settings.

• DNS confused when switching WiFi networks
• Container connectivity lost after switching wireless networks
• Manual restart required everytime network connectivity changes (contains some workarounds)

Docker Machine 0.5.3 adds two new options that may circumvent this;

• --virtualbox-dns-proxy
• --virtualbox-host-dns-resolver

Answer 2

重新启动机器后再次工作，不知道导致问题的原因是什么......