On 04/06/2018 03:50 PM, H wrote:
On April 5, 2018 4:49:57 PM EDT, H <agents@xxxxxxxxxxxxxx> wrote:
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?
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Resolved the issue by rebooting the computer but had to do that again later today. Does anyone have experience with docker under Centos 7?
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Lots of people have experience, and it works well. I believe the issue
you are seeing, is that the Firewall rules are being modified and
something is removing the rule that Docker adds to allow containers to
use the host machines network interface. When you reboot and restart
the Docker daemon and the container, the network is correct again, but
some tool (Firewalld) or something else is mucking around with the iptables.
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