grep -r "" /etc/NetworkManager/NetworkManager.conf /{usr/lib,run,etc}/NetworkManager/conf.d/ 
/etc/NetworkManager/NetworkManager.conf:[main]
/etc/NetworkManager/NetworkManager.conf:plugins=ifupdown,keyfile
/etc/NetworkManager/NetworkManager.conf:
/etc/NetworkManager/NetworkManager.conf:[ifupdown]
/etc/NetworkManager/NetworkManager.conf:managed=false
/etc/NetworkManager/NetworkManager.conf:
/etc/NetworkManager/NetworkManager.conf:[device]
/etc/NetworkManager/NetworkManager.conf:wifi.scan-rand-mac-address=no
/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf:[main]
/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf:# We need to specify "dns=systemd-resolved" as for the time being our
/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf:# /etc/resolv.conf points to resolvconf's generated file instead of
/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf:# systemd-resolved's, so the auto-detection does not work.
/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf:dns=systemd-resolved
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:# Certain drivers are known not to support changing the MAC address.
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:# Disable touching the MAC address on such devices.
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:#
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:# See man NetworkManager.conf
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:#
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:# https://bugzilla.gnome.org/show_bug.cgi?id=777523
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:[device-31-mac-addr-change]
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:match-device=driver:eagle_sdio,driver:wl
/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf:wifi.scan-rand-mac-address=no
/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf:[keyfile]
/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf:unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf:[connectivity]
/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf:uri=http://connectivity-check.ubuntu.com./
/etc/NetworkManager/conf.d/system-wifi-powersave.conf:# File to be placed under /etc/NetworkManager/conf.d
/etc/NetworkManager/conf.d/system-wifi-powersave.conf:# File name lexically later than 'default…'
/etc/NetworkManager/conf.d/system-wifi-powersave.conf:[connection]
/etc/NetworkManager/conf.d/system-wifi-powersave.conf:# Values for wifi.powersave are 
/etc/NetworkManager/conf.d/system-wifi-powersave.conf:# 0 (use default), 1 (ignore/don't touch), 2 (disable) or 3 (enable).
/etc/NetworkManager/conf.d/system-wifi-powersave.conf:wifi.powersave = 2
/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf:[connection]
/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf:wifi.powersave = 2