[CentOS] Unable to access network from docker container

Thu Apr 5 20:49:57 UTC 2018
H <agents at meddatainc.com>

I have recently installed docker and playing around with it. On a CentOS 7 machine, however, I am unable to get access to the outside internet, thus yum ... fails. The host machine runs fine.

I am wondering if there are some networking setting on the host I need to modify to allow the docker container to connect to the outside?