diff --git a/README.md b/README.md
index bae8815ac1ecccf1b8ab1f313dc16847336cac5a..3763e19eef9cf6601663fd4ebe878b50d20438ff 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,3 @@
-
-[![alt](https://licensebuttons.net/l/by-nc/4.0/88x31.png)](https://creativecommons.org/licenses/by-nc/4.0/legalcode)
-
 # Ansible deployment for AIDMOIt
 
 This project aims to deploy a datalake and its ecosystem using  **[Ansible](https://docs.ansible.com/)** and/or **[Vagrant](https://www.vagrantup.com/)**.
@@ -80,9 +77,10 @@ Then run the script [ansible-launch.sh](ansible-launch.sh) :
 ```
 # Deploy a HDFS cluster
 ## Deploy cluster HDFS with multiple VMs
-1. Set your nodes' IP address in [VagrantFile](vagrant/cluster/Vagrantfile)
+1. Set your nodes' IP address in [VagrantFile](vagrant/cluster/Vagrantfile).
+Inside this file, edit your network setting (name for your interface adaptator and DNS option)
 2. Declare those IP for ansible provision in [vars](playbook/roles/hosts-file/vars/main.yml)
-3. Configure your own computer to access to your nodes using their hostname
+3. Configure your own computer to access to your nodes using their hostname (need for access to hadoop web ui)
 	```shell
 	vim /etc/hosts
 	```	
@@ -111,3 +109,21 @@ Then run the script [ansible-launch.sh](ansible-launch.sh) :
  	if default : http://10.0.0.10:9870
 ## Deploy cluster HDFS on servers
 work in progress
+
+## License
+![licence](https://img.shields.io/badge/Licence-GPL--3-blue.svg)
+
+**Aidmoit's Collect** is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see http://www.gnu.org/licenses
diff --git a/ansible-launch.sh b/ansible-launch.sh
deleted file mode 100755
index cceb65b70904fd8a28458fd838da7af8abbd5e9b..0000000000000000000000000000000000000000
--- a/ansible-launch.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-#ssh-copy-id vagrant@172.16.50.54
-ansible-playbook -i inventory/static playbook/mononode.yml -u vagrant --become --ask-become-pass
diff --git a/playbook/roles/hadoop-common/tasks/main.yml b/playbook/roles/hadoop-common/tasks/main.yml
index be73f3e0c8717383cb5faa3354df75261333f47e..9c0afeeb2896c2d6b2c80cd4e974bbcec59e1005 100644
--- a/playbook/roles/hadoop-common/tasks/main.yml
+++ b/playbook/roles/hadoop-common/tasks/main.yml
@@ -29,7 +29,7 @@
 
 - name: Set JAVA_HOME as environment variable
   become: yes
-  become_user : hadoop
+  # become_user : hadoop
   blockinfile:
     insertafter: EOF
     path : ~/.bashrc
diff --git a/vagrant/cluster/Vagrantfile b/vagrant/cluster/Vagrantfile
index 245ce7a9d6af8794906bd787ef28cf089a7a8f65..526639b889217b53dee969a33dd1cf09c09cb640 100644
--- a/vagrant/cluster/Vagrantfile
+++ b/vagrant/cluster/Vagrantfile
@@ -9,7 +9,7 @@ Vagrant.configure("2") do |config|
 		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 10.34.192.61" >> /etc/resolv.conf
 			echo "nameserver 10.34.192.62" >> /etc/resolv.conf
 		SHELL
 		namenode.vm.hostname = "namenode"
@@ -32,7 +32,7 @@ Vagrant.configure("2") do |config|
 			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 10.34.192.61" >> /etc/resolv.conf
 				echo "nameserver 10.34.192.62" >> /etc/resolv.conf
 			SHELL
 			machine.vm.hostname = "datanode#{machine_id}"
diff --git a/vagrant/geonetwork/Vagrantfile b/vagrant/geonetwork/Vagrantfile
index 16978efc70956168e51690726a191ce1b82f71b2..376e3e998c47a4951f9035ce7ca9d36c85407a5e 100644
--- a/vagrant/geonetwork/Vagrantfile
+++ b/vagrant/geonetwork/Vagrantfile
@@ -4,14 +4,13 @@
 Vagrant.configure("2") do |config|
   config.vm.box = "generic/debian9"
 
-  # Config Rémy pour piloter avec ansible et installer geonetwork
   config.vm.define "aidmoit-geonetwork"
   config.vm.hostname = "aidmoit-geonetwork"
   config.vm.network "public_network", bridge:"enp1s0", use_dhcp_assigned_default_route: true
 
   config.vm.provision "shell", inline: <<-SHELL
     systemctl stop resolvconf
-    echo "nameserver 10.34.192.61" > /etc/resolv.conf
+    echo "nameserver 10.34.192.61" >> /etc/resolv.conf
     echo "nameserver 10.34.192.62" >> /etc/resolv.conf
   SHELL