/etc/ is in network-manager 0.9.8.8-0ubuntu7.1.
This file is owned by root:root, with mode 0o755.
..
/etc/dnsmasq.d/
/etc/dnsmasq.d/network-manager
/etc/NetworkManager/
/etc/NetworkManager/VPN/
/etc/NetworkManager/dnsmasq.d/
/etc/NetworkManager/system-connections/
/etc/NetworkManager/NetworkManager.conf
/etc/NetworkManager/dispatcher.d/
/etc/NetworkManager/dispatcher.d/01ifupdown
/etc/dbus-1/
/etc/dbus-1/system.d/
/etc/dbus-1/system.d/nm-avahi-autoipd.conf
/etc/dbus-1/system.d/nm-dhcp-client.conf
/etc/dbus-1/system.d/org.freedesktop.NetworkManager.conf
/etc/dbus-1/system.d/nm-dispatcher.conf
/etc/dbus-1/system.d/nm-ofono.conf
/etc/init/
/etc/init/network-manager.conf