fix some universalis network issues

vagrant/cluster/Vagrantfile

 ### Configuration parameters ###
 NUMBER_OF_DATANODE = 2
 DEPLOY_Geonetwork = false
+ENTREPRISE_NETWORK_DNS_RULE = true
 ### end of Configuration parameters ###
 
 Vagrant.configure("2") do |config|
 	config.vm.define "namenode" do |namenode|
 		namenode.vm.box = "generic/debian9"
-		namenode.vm.network "public_network", bridge:"enp1s0", use_dhcp_assigned_default_route: true
-		namenode.vm.provision "shell", inline: <<-SHELL
-			systemctl stop resolvconf
-			echo "nameserver 10.34.192.61" >> /etc/resolv.conf
-			echo "nameserver 10.34.192.62" >> /etc/resolv.conf
-		SHELL
+		if ENTREPRISE_NETWORK_DNS_RULE == true
+			namenode.vm.provision "shell", inline: <<-SHELL
+				systemctl stop resolvconf
+				echo "nameserver 172.16.1.1" > /etc/resolv.conf
+				echo "nameserver 172.16.1.2" >> /etc/resolv.conf
+			SHELL
+		end
 		namenode.vm.hostname = "namenode"
 		namenode.vm.network :private_network, ip: "10.0.0.10"
 		namenode.vm.provision "ansible" do |ansible|
@@ -29,12 +31,13 @@ Vagrant.configure("2") do |config|
 	(1..N).each do |machine_id|
 		config.vm.define "datanode#{machine_id}" do |machine|
 			machine.vm.box = "generic/debian9"
-			machine.vm.network "public_network", bridge:"enp1s0", use_dhcp_assigned_default_route: true
-			machine.vm.provision "shell", inline: <<-SHELL
-				systemctl stop resolvconf
-				echo "nameserver 10.34.192.61" >> /etc/resolv.conf
-				echo "nameserver 10.34.192.62" >> /etc/resolv.conf
-			SHELL
+			if ENTREPRISE_NETWORK_DNS_RULE == true
+				machine.vm.provision "shell", inline: <<-SHELL
+					systemctl stop resolvconf
+					echo "nameserver 172.16.1.1" > /etc/resolv.conf
+					echo "nameserver 172.16.1.2" >> /etc/resolv.conf
+				SHELL
+			end
 			machine.vm.hostname = "datanode#{machine_id}"
 			machine.vm.network :private_network, ip: "10.0.0.1#{machine_id}"
 			machine.vm.provision "ansible" do |ansible|