fix

dnsmasq_lille_edu.sh

-#!/bin/sh
+#!/bin/bash
 set -e
 
 SCRIPT_DIR=$(realpath `dirname "$0"`)
@@ -64,21 +64,6 @@ source /etc/network/interfaces.d/*
 auto lo
 iface lo inet loopback
 
-# The primary network interface
-allow-hotplug ens1
-iface ens1 inet dhcp
-EOF
-  else
-    cat > $hostname/interfaces <<EOF
-# This file describes the network interfaces available on your system
-# and how to activate them. For more information, see interfaces(5).
-
-source /etc/network/interfaces.d/*
-
-# The loopback network interface
-auto lo
-iface lo inet loopback
-
 # The RJ45 interface
 allow-hotplug eno1
 #iface eno1 inet dhcp
@@ -92,7 +77,6 @@ iface ens9f1 inet dhcp
 
 
 EOF
-  fi
   i=`expr $i + 1`
 done