diff --git a/Sio1/SISR1/20-DNS/Master/db.domaine.lan b/Sio1/SISR1/20-DNS/Master/db.domaine.lan
new file mode 100644
index 0000000..974a498
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Master/db.domaine.lan
@@ -0,0 +1,20 @@
+;
+; BIND data file for local loopback interface
+;
+$TTL	604800
+domaine.lan.	IN	SOA	srv1.domaine.lan. root.srv1.domaine.lan. (
+			 2022020100	; Serial
+			 604800		; Refresh
+			  86400		; Retry
+			2419200		; Expire
+			 604800 )	; Negative Cache TTL
+;
+@	IN	NS	srv1.domaine.lan.
+srv1	IN	A	192.168.0.110
+@	IN	NS	srv2.domaine.lan.
+srv2	IN	A	192.168.0.114
+
+;@	IN	AAAA	::1
+poste1  IN      A	192.168.0.111
+poste2  IN      A	192.168.0.112
+www2    IN      CNAME   poste1
diff --git a/Sio1/SISR1/20-DNS/Master/db.domaine.lan.rev b/Sio1/SISR1/20-DNS/Master/db.domaine.lan.rev
new file mode 100644
index 0000000..e4e29e6
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Master/db.domaine.lan.rev
@@ -0,0 +1,14 @@
+$TTL 38400	; 10 hours 40 minutes 
+@		IN SOA	srv1.domaine.lan. root.srv1.domaine.lan. (
+		2022020100 ; serial
+		10800      ; refresh (3 hours)
+		3600       ; retry (1 hour)
+		604800     ; expire (1 week)
+		38400      ; minimum (10 hours 40 minutes)
+	)
+	IN	NS	srv1.domaine.lan.
+	IN	NS	srv2.domaine.lan.
+
+110	IN	PTR	srv1.domaine.lan.
+111	IN	PTR	xp.domaine.lan.
+114	IN	PTR	srv2.domaine.lan.
diff --git a/Sio1/SISR1/20-DNS/Master/named.conf b/Sio1/SISR1/20-DNS/Master/named.conf
new file mode 100644
index 0000000..880786a
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Master/named.conf
@@ -0,0 +1,11 @@
+// This is the primary configuration file for the BIND DNS server named.
+//
+// Please read /usr/share/doc/bind9/README.Debian.gz for information on the 
+// structure of BIND configuration files in Debian, *BEFORE* you customize 
+// this configuration file.
+//
+// If you are just adding zones, please do that in /etc/bind/named.conf.local
+
+include "/etc/bind/named.conf.options";
+include "/etc/bind/named.conf.local";
+include "/etc/bind/named.conf.default-zones";
diff --git a/Sio1/SISR1/20-DNS/Master/named.conf.local b/Sio1/SISR1/20-DNS/Master/named.conf.local
new file mode 100644
index 0000000..71421f6
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Master/named.conf.local
@@ -0,0 +1,20 @@
+//
+// Do any local configuration here
+//
+
+// Consider adding the 1918 zones here, if they are not used in your
+// organization
+//include "/etc/bind/zones.rfc1918";
+
+// zone directe
+        zone "domaine.lan" {
+             type master;
+             file "/etc/bind/db.domaine.lan";
+        };
+
+// zone inverse 
+	zone "0.168.192.in-addr.arpa" {
+	     type master;
+             notify no;
+             file "/etc/bind/db.domaine.lan.rev";
+	};
diff --git a/Sio1/SISR1/20-DNS/Master/resolv.conf b/Sio1/SISR1/20-DNS/Master/resolv.conf
new file mode 100644
index 0000000..2f06cc1
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Master/resolv.conf
@@ -0,0 +1,3 @@
+domain domaine.lan
+search domaine.lan
+nameserver 127.0.0.1
diff --git a/Sio1/SISR1/20-DNS/Slave/named.conf.local b/Sio1/SISR1/20-DNS/Slave/named.conf.local
new file mode 100644
index 0000000..71421f6
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Slave/named.conf.local
@@ -0,0 +1,20 @@
+//
+// Do any local configuration here
+//
+
+// Consider adding the 1918 zones here, if they are not used in your
+// organization
+//include "/etc/bind/zones.rfc1918";
+
+// zone directe
+        zone "domaine.lan" {
+             type master;
+             file "/etc/bind/db.domaine.lan";
+        };
+
+// zone inverse 
+	zone "0.168.192.in-addr.arpa" {
+	     type master;
+             notify no;
+             file "/etc/bind/db.domaine.lan.rev";
+	};
diff --git a/Sio1/SISR1/20-DNS/Slave/named.conf.options b/Sio1/SISR1/20-DNS/Slave/named.conf.options
new file mode 100644
index 0000000..394f484
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Slave/named.conf.options
@@ -0,0 +1,24 @@
+options {
+	directory "/var/cache/bind";
+
+	// If there is a firewall between you and nameservers you want
+	// to talk to, you may need to fix the firewall to allow multiple
+	// ports to talk.  See http://www.kb.cert.org/vuls/id/800113
+
+	// If your ISP provided one or more IP addresses for stable 
+	// nameservers, you probably want to use them as forwarders.  
+	// Uncomment the following block, and insert the addresses replacing 
+	// the all-0's placeholder.
+
+	 forwarders {
+	 	10.121.38.7;
+	 };
+
+	//========================================================================
+	// If BIND logs error messages about the root key being expired,
+	// you will need to update your keys.  See https://www.isc.org/bind-keys
+	//========================================================================
+	dnssec-validation no;
+
+	listen-on-v6 { any; };
+};
diff --git a/Sio1/SISR1/20-DNS/Slave/resolv.conf b/Sio1/SISR1/20-DNS/Slave/resolv.conf
new file mode 100644
index 0000000..2f06cc1
--- /dev/null
+++ b/Sio1/SISR1/20-DNS/Slave/resolv.conf
@@ -0,0 +1,3 @@
+domain domaine.lan
+search domaine.lan
+nameserver 127.0.0.1