diff --git a/README.md b/README.md
index c2bebcf..a15044e 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,9 @@
 # vagrant
 
-le 2023-01-19
+le 2023-01-29
 
 Ce dépôt héberge des **Vagrantfile** dont
+  * **dns** : Vagrantfile pour 2 serveurs **Bind9** (1 maitre et un esclave), tests **goss** chainés  
   * **docker**
   * **docker-wordpress**
   * **docker-glpi**
diff --git a/dns/Vagrantfile b/dns/Vagrantfile
new file mode 100644
index 0000000..6db2aef
--- /dev/null
+++ b/dns/Vagrantfile
@@ -0,0 +1,53 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+  # Base VM OS configuration.
+  config.vm.box = "debian/bullseye64"
+  config.ssh.insert_key = false
+  config.vm.synced_folder '.', '/vagrant', disabled: true
+
+  # General VirtualBox VM configuration.
+  config.vm.provider :virtualbox do |v|
+    v.memory = 512
+    v.cpus = 1
+    v.linked_clone = true
+    v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
+    v.customize ["modifyvm", :id, "--ioapic", "on"]
+  end
+
+  # srv1 master.
+  config.vm.define "srv1" do |srv1|
+    srv1.vm.hostname = "srv1"
+    srv1.vm.network :private_network, ip: "192.168.56.10"
+    srv1.vm.provision "shell",
+      inline: "sudo apt-get update ; sudo apt-get install -y vim curl wget"
+    srv1.vm.provision "shell", path: "provision/setup-master.sh"
+  end
+
+
+  # srv2 slave.
+  config.vm.define "srv2" do |srv2|
+    srv2.vm.hostname = "srv2"
+    srv2.vm.network :private_network, ip: "192.168.56.11"
+    srv2.vm.provision "shell",
+      inline: "sudo apt-get update ; sudo apt-get install -y vim curl wget"
+    srv2.vm.provision "shell", path: "provision/setup-slave.sh"
+  end
+
+  # cli.
+  config.vm.define "cli" do |cli|
+    cli.vm.hostname = "cli"
+    cli.vm.network :private_network, ip: "192.168.56.30"
+    cli.vm.provider :virtualbox do |v|
+      v.customize ["modifyvm", :id, "--memory", 512]
+    end
+    cli.vm.provision "shell",
+      inline: "sudo apt-get update ; sudo apt-get install -y vim curl wget"
+    cli.vm.provision "ansible" do |ansible|
+      ansible.playbook = "provision/setup-cli.sh"
+    end
+  end
+
+end
+
diff --git a/dns/provision/setup-master.sh b/dns/provision/setup-master.sh
new file mode 100644
index 0000000..dae269b
--- /dev/null
+++ b/dns/provision/setup-master.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+set -eu
+
+mondomaine=domaine.lan
+apt-get install -y  bind9 bind9-doc bind9-host 
+wget -nc https://gitea.lyc-lecastel.fr/gadmin/vagrant/raw/branch/main/divers/bind/mkzone
+bash mkzone "${mondomaine}"
+cp db.${mondomaine}* /etc/bind
+cp named.conf.local  /etc/bind
+sudo named-checkconf /etc/bind/named.conf
+sudo named-checkzone "${mondomaine}" "/etc/bind/db.${mondomaine}"
+sudo systemctl restart bind9
+host srv1
+host srv2
+host -t soa "${mondomaine}"
+host -l "${mondomaine}"
+curl -fsSL https://goss.rocks/install |sh
+goss add command "host ${mondomaine}"
+goss add command "host -t soa ${mondomaine}"
+goss add command "host -t ns ${mondomaine}"
+goss add command "host srv1.${mondomaine}"
+goss add command "host srv1"
+goss add command "host www"
+goss add command "host srv2.${mondomaine}"
+goss add command "host srv2"
+goss add command "host 192.168.56.10"
+goss add command "host 192.168.56.11"
+goss v -f tap
diff --git a/dns/provision/setup-slave.sh b/dns/provision/setup-slave.sh
new file mode 100644
index 0000000..26de306
--- /dev/null
+++ b/dns/provision/setup-slave.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -eu
+
+mondomaine=domaine.lan
+apt-get install -y  bind9 bind9-doc bind9-host 
+wget -nc https://gitea.lyc-lecastel.fr/gadmin/vagrant/raw/branch/main/divers/bind/mkzone
+bash mkzone -s "${mondomaine}"
+cp named.conf.local  /etc/bind
+sudo named-checkconf /etc/bind/named.conf
+sudo named-checkzone "${mondomaine}" "/etc/bind/db.${mondomaine}"
+sudo systemctl restart bind9
+host srv1
+host srv2
+host -t soa "${mondomaine}"
+host -l "${mondomaine}"