message: [dns64] install resolvconf
diff: @@ -68,7 +68,11 @@ install_packages_apt()
  without NAT64 || sudo apt-get install -y tayga iptables
  # dns64
  - without NAT64 || sudo apt-get install -y bind9
  + without DNS64 || {
  + sudo apt-get install -y bind9
  + # Resolvconf cannot be installed inside docker environment
  + [ -f /.dockerenv ] || sudo apt-get install -y resolvconf
  + }
  # network-manager
  without NETWORK_MANAGER || sudo apt-get install -y network-manager
  