Hi to all
Looking for tutos on how to connect LXC linux containers to Internet from my Debian laptop
You need to use iptables to expose the containers to your laptop’s IP address.
See Step 5 from https://www.digitalocean.com/community/tutorials/how-to-set-up-and-use-lxd-on-ubuntu-16-04 on how to do that.
Then, you need to figure out how to expose your laptop’s IP address to the Internet.
There is a feature in your ADSL modem/router called Port Forwarding, here is how to enable it, https://portforward.com/
(Alternatively, you can use a UPnP client as in http://miniupnp.tuxfamily.org/).