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Created January 8, 2019 12:25
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centos 7.x
This issue applies to: RHEL/CentOS 7.x and later
By default, firewalld will block intercontainer networking on the same docker host. To allow communication between the docker containers, run the following commands:
$ firewall-cmd --permanent --direct --add-rule ipv4 filter INPUT 4 -i docker0 -j ACCEPT
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