dagorret.net
Force apt-get to connect via IPv4 or IPv6 - Carlos Dagorret Notes
Surely you are thinking: “IPv4 is ‘dead’, it does not make sense to force IPv4”, in an ideal world, you would be right . But the reality is that a large part of the infrastructure of the network is not ready for IPv6. My experience with apt-get on stable Debian in the UK has been …