==== Setup Stretch on ULayer.net box ====
Fresh Stretch install:
  * Skip networking setup
  * Hostname: dns1
  * One big ext3 partition
  * Agree to warning about no swap
  * without network mirror

  # nano /etc/hosts

  129.97.134.71 mirror.csclub.uwaterloo.ca

  # nano /etc/apt/sources.list

  deb http://mirror.csclub.uwaterloo.ca/debian/ stretch main

Get interface list [ens18 on the ones I tried so far]

  # ls /sys/class/net/ 
  # nano /etc/network/interfaces

  auto ens18
  iface ens18 inet static
     address 192.99.183.132
     netmask 255.255.255.255
     gateway 192.99.35.254