RHEL7: How to persistenly disable Ipv6 in Linux namespaces

Updated -

Follow the instructions in https://access.redhat.com/solutions/8709#rhel7disable
After rebooting new namespaces that are created will also have IPv6 disabled.

# ip netns exec test2 sysctl -a|grep disable_ipv6
#

Note: there is no link local Ipv6 IP address configured.

# ip net...

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