Change default network name (ens33) to old “eth0” on Ubuntu 16.04
$sudovim/etc/default/grubGRUB_CMDLINE_LINUX="net.ifnames=0biosdevname=0"$sudogrub-mkconfig-o/boot/grub/grub.cfgGeneratinggrubconfigurationfile...Warning:SettingGRUB_TIMEOUTtoanon-zerovaluewhenGRUB_HID