diff --git a/sisr1/tp03/srv-dns2-ge/db.monlabo.lan b/sisr1/tp03/srv-dns2-ge/db.monlabo.lan
index e4baca0..03287fc 100644
--- a/sisr1/tp03/srv-dns2-ge/db.monlabo.lan
+++ b/sisr1/tp03/srv-dns2-ge/db.monlabo.lan
@@ -1,6 +1,4 @@
-;
-; BIND data file for local loopback interface
-;
+$ORIGIN .
 $TTL	604800
 @	IN	SOA	srv-service-ge.monlabo.lan. root.monlabo.lan. (
 			  2635478965	; Serial
@@ -16,6 +14,8 @@ $TTL	604800
 		IN	A	172.16.0.2
 		IN	A	172.16.0.254
 		IN	A	172.16.0.100
+
+$ORIGIN monlabo.lan.
 	
 srv-service-ge	IN	A	172.16.0.1
 srv-dns2-ge	IN	A	172.16.0.2
diff --git a/sisr1/tp03/srv-dns2-ge/db.monlabo.lan.rev b/sisr1/tp03/srv-dns2-ge/db.monlabo.lan.rev
index 0d673fe..ca1b0a4 100644
--- a/sisr1/tp03/srv-dns2-ge/db.monlabo.lan.rev
+++ b/sisr1/tp03/srv-dns2-ge/db.monlabo.lan.rev
@@ -1,6 +1,4 @@
-;
-; BIND data file for local loopback interface
-;
+$ORIGIN .
 $TTL    604800
 @       IN      SOA     srv-service-ge.monlabo.lan. root.monlabo.lan. (
               2635478965         ; Serial
@@ -12,18 +10,14 @@ $TTL    604800
 		        IN      NS      srv-service-ge.monlabo.lan.
 			IN	NS	srv-dns2-ge.monlabo.lan.
 
-			IN	A	172.16.0.1
-			IN	A	172.16.0.2
-			IN	A	172.16.0.254
-			IN	A	172.16.0.100
+$ORIGIN 0.16.172.in-addr.arpa.
+
+1       IN      PTR     srv-service-ge.monlabo.lan.
+2       IN      PTR     srv-dns2-ge.monlabo.lan.
+100     IN      PTR     pc-cli-ge.monlabo.lan.
+254     IN      PTR     srv-admin-ge.monlabo.lan.
 
 srv-service-ge		IN      A       172.16.0.1
 srv-dns2-ge		IN	A	172.16.0.2
 srv-admin-ge		IN      A       172.16.0.254
 pc-cli-ge		IN	A	172.16.0.100
-
-
-1	IN	PTR	srv-service-ge.monlabo.lan.
-2	IN	PTR	srv-dns2-ge.monlabo.lan.
-100	IN	PTR	pc-cli-ge.monlabo.lan.
-254	IN	PTR	srv-admin-ge.monlabo.lan.