On Wed, Nov 7, 2018 at 3:37 AM Arun Khan <knura9(a)gmail.com> wrote:
Have you ever been frustrated trying to find *all* the
used in the config files and init scripts in a RHEL or derivative
I was working on a RHEL setup to configure a "dummy0" interface with very
specific requirement: this interface shall *not* be managed by the
The RHEL Networking PDF (official doc) does not mention NM_CONTROLLED!
After much searching, I found the answer in this Ars Technica discussion
They are all defined in a file that goes by the following name.
(where xxx is the initscripts version installed by the distro)
+1, /usr/share/doc is the best place to find sample configs and docs for
the package installed on the system.
Specifically to NM_CONTROLLED option, the RHEL 7 migration notes  say
NetworkManager now non-destructively takes ownership of interfaces that it
can natively configure, such as Ethernet, InfiniBand, Bridge, Bond, VLAN,
and Team interfaces. If these interfaces are configured before
NetworkManager starts or restarts, the previously configured connections
are not interrupted. This means that the NM_CONTROLLED option is no longer