> ifupdown has been deprecated in favor of netplan and is no longer present on new installs [...]
> Given that ifupdown is no longer installed by default, its commands will not be present: ifup and ifdown are thus unavailable, replaced by ip link set $device up and ip link set $device down.
Sad to see this go; I always use ifup, ifdown and ifconfig. Yes, they're old and clunky tools but in a way they are the staple of a proper Linux installation to me.
Not to mention that it's quite a handful to write out "ip link set $device up".
> Given that ifupdown is no longer installed by default, its commands will not be present: ifup and ifdown are thus unavailable, replaced by ip link set $device up and ip link set $device down.
Sad to see this go; I always use ifup, ifdown and ifconfig. Yes, they're old and clunky tools but in a way they are the staple of a proper Linux installation to me.
Not to mention that it's quite a handful to write out "ip link set $device up".