I use docker for testing environment. Somehow I found out that the docker container cannot access the internet and the solution is really simple:
$ sudo ifconfig docker0 down $ sudo service docker restart $ sudo ifconfig docker0 up
Or
$ sudo vim /etc/default/docker DOCKER_OPTS="--dns 10.10.4.14 --dns 8.8.8.8 --dns 8.8.4.4"
Which:
10.10.4.14 in my localhost/laptop