@arubislander I describe in broad outline ...
relative to vps/vpn (which allows you to have an ip reachable) it is set to redirect the requests received on port 88 to a specific vpn client (my xiaomi) and vice versa (there are 2 iptables rules)
regarding the auto start of nginx, in upstart :
description "Libertine - start nginx"
start on started unity8
exec /home/phablet/.aa_myscripts/nginx.sh
nginx.sh :
#!/bin/sh
sleep 3 ; sudo chroot /home/phablet/.cache/libertine-container/mylinux/rootfs /bin/bash -c "./startup.sh"
in libertine root : startup.sh
#!/bin/sh
service nginx start
one more thing, due to dns changes I've made I could no longer install any program (from gui or libertine-container-manager) so i used chroot, I have reset dns, installed and configured nginx without any particular problems ... do you have more specific questions ?