bonsoir,
apparemment ça se règle dans /etc/sysconfig/network/config
Peut être metr "yes à la place de "no" dans :This variable enables netconfig to always force a replace of modified
# files and automatically enables the -f | --force-replace parameter.
#
# The purpose is to use it as workaround, when some other tool trashes
# the files, e.g. /etc/resolv.conf and you observe messages like this
# in your logs on in "netconfig update" output:
# ATTENTION: You have modified /etc/resolv.conf. Leaving it untouched.
#
# Please do not forget to also report a bug as we have a system policy
# to use netconfig.
#
NETCONFIG_FORCE_REPLACE="no"
ça fait un bout de temps que j'avais mis le nez là dedans; 9ça a bien changé!