diff --git a/sisr1/tp02-dns/dns1/db.sio-ab.lan.rev b/sisr1/tp02-dns/dns1/db.sio-ab.lan.rev
new file mode 100644
index 0000000..1867090
--- /dev/null
+++ b/sisr1/tp02-dns/dns1/db.sio-ab.lan.rev
@@ -0,0 +1,16 @@
+;
+; BIND data file for local loopback interface
+;
+$TTL	604800
+@	IN	SOA	dns1-ab.sio-ab.lan. root  (
+			      2		; Serial
+			 604800		; Refresh
+			  86400		; Retry
+			2419200		; Expire
+			 604800 )	; Negative Cache TTL
+;
+	IN	NS	dns1-ab.sio.lan.
+	IN	NS	dns2-ab.sio.lan.
+160	IN	PTR	deb-dhcp-ab.sio-ab.lan.
+161	IN	PTR	dns1-ab.sio-ab.lan.
+162	IN	PTR	dns2-ab.sio-ab.lan.