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Is it safe to set net.ifnames=0 in RHEL7 and RHEL8?

Solution Verified - Updated 2019-11-17T23:23:24+00:00 -

Issue

Is it safe to disable Consistent Device Naming by setting net.ifnames=0 on the kernel command line in RHEL7 and RHEL8?
Why can I no longer use the 70-persistent-net.rules file to force persistent ethX names like I could in earlier versions of Red Hat Enterprise Linux?

Environment

Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 7

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