diff --git a/sisr1/tp02-dns/dns2/db.sio-ab.lan b/sisr1/tp02-dns/dns2/db.sio-ab.lan
new file mode 100644
index 0000000..19e512b
--- /dev/null
+++ b/sisr1/tp02-dns/dns2/db.sio-ab.lan
@@ -0,0 +1,17 @@
+$ORIGIN .
+$TTL 604800	; 1 week
+sio-ab.lan		IN SOA	dns1-ab-sio.lan.sio-ab.lan. root.dns1-ab-sio-ab.lan. (
+				2          ; serial
+				604800     ; refresh (1 week)
+				86400      ; retry (1 day)
+				2419200    ; expire (4 weeks)
+				604800     ; minimum (1 week)
+				)
+			NS	dns1-ab.sio-ab.lan.
+			A	127.0.0.1
+$ORIGIN sio-ab.lan.
+deb-dhcp-ab		A	192.168.0.140
+dhcp			CNAME	deb-dhcp-ab
+dns1			CNAME	dns1-ab
+dns1-ab			A	192.168.0.141
+dns2			CNAME	dns2-ab
diff --git a/sisr1/tp02-dns/dns2/db.sio-ab.lan.rev b/sisr1/tp02-dns/dns2/db.sio-ab.lan.rev
new file mode 100644
index 0000000..a558411
--- /dev/null
+++ b/sisr1/tp02-dns/dns2/db.sio-ab.lan.rev
@@ -0,0 +1,20 @@
+;
+; BIND data file for local loopback interface
+;
+$TTL    604800
+@       IN      SOA     dns1-ab-sio.lan  root.dns1-ab-sio-ab.lan. (
+                              2         ; Serial
+                         604800         ; Refresh
+                          86400         ; Retry
+                        2419200         ; Expire
+                         604800 )       ; Negative Cache TTL
+;
+@       IN      NS      dns1-ab.sio-ab.lan.
+@       IN      A       127.0.0.1
+;@      IN      AAAA    ::1
+140  IN      PTR     dns1-ab.sio-ab.lan. 
+141  IN      PTR     deb-dhcp-ab.sio-ab.lan
+142  IN      PTR     dns2-ab.sio-ab.lan.
+dhcp	CNAME	deb-dhcp-ab
+dns1	CNAME   dns1-ab
+dns2    CNAME   dns2-ab
diff --git a/sisr1/tp02-dns/dns2/named.conf b/sisr1/tp02-dns/dns2/named.conf
new file mode 100644
index 0000000..bc71baa
--- /dev/null
+++ b/sisr1/tp02-dns/dns2/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 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/sisr1/tp02-dns/dns2/named.conf.local b/sisr1/tp02-dns/dns2/named.conf.local
new file mode 100644
index 0000000..e3c445f
--- /dev/null
+++ b/sisr1/tp02-dns/dns2/named.conf.local
@@ -0,0 +1,22 @@
+//
+// Do any local configuration here
+// zone directe
+zone "sio-ab.lan" {
+             type slave;
+             file "/etc/bind/db.sio-ab.lan";
+             masters { 192.168.0.141; };
+	     masterfile-format text;
+};
+
+// zone inverse 
+zone "0.168.192.in-addr.arpa" {
+	     type slave;
+             notify no;
+             file "/etc/bind/db.sio-ab.lan.rev";
+             masters { 192.168.0.141; };
+};
+
+// Consider adding the 1918 zones here, if they are not used in your
+// organization
+//include "/etc/bind/zones.rfc1918";
+
diff --git a/sisr1/tp02-dns/dns2/named.conf.options b/sisr1/tp02-dns/dns2/named.conf.options
new file mode 100644
index 0000000..4013a0d
--- /dev/null
+++ b/sisr1/tp02-dns/dns2/named.conf.options
@@ -0,0 +1,26 @@
+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 {
+                192.168.0.161; // dns timéo       
+                192.168.0.121; // dns redouane  
+		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 auto;
+
+	listen-on-v6 { any; };
+};
diff --git a/sisr1/tp02-dns/dns2/resolv.conf b/sisr1/tp02-dns/dns2/resolv.conf
new file mode 100644
index 0000000..b742088
--- /dev/null
+++ b/sisr1/tp02-dns/dns2/resolv.conf
@@ -0,0 +1,4 @@
+domain sio-ab.lan
+search sio-ab.lan
+nameserver 127.0.0.1
+nameserver 10.121.38.8