diff --git a/shared/dns/knot.nix b/shared/dns/knot.nix
index 048f36f..0bef88c 100644
--- a/shared/dns/knot.nix
+++ b/shared/dns/knot.nix
@@ -14,11 +14,6 @@ let
     supportsIPv4 = nd: lib.hasAttr "ip4" nd;
     supportsIPv6 = nd: lib.hasAttr "ip6" nd;
 
-    timestampDerivation = pkgs.runCommand "timestamp" {} ''
-        echo -n $(date +%s) > $out
-    '';
-    timestamp = builtins.readFile timestampDerivation;
-
     # Domain key
     domainkey = ''
       v=DKIM1; k=rsa; p=${dkim.dkim_pub}'';
@@ -126,12 +121,11 @@ let
     firstNSDn = "${hostToDomain firstNS}.net.";
 
     # Zone conf
-    zoneLasuiteFederezNetFilePath = "/var/lib/knot/zones/zone-lasuite-federez-net";
     zone-lasuite-federez-net = pkgs.writeText "zone-lasuite-federez-net" ''
         $ORIGIN lasuite.federez.net.
         $TTL 60
         @   IN  SOA ${firstNSDn} monitoring.lasuite.federez.net. (
-                    ${timestamp} ; serial
+                    2025072701 ; serial
                     60 ; refresh
                     60 ; retry
                     60 ; expire
@@ -150,12 +144,11 @@ let
         default._domainkey  IN  TXT "${lib.concatStringsSep "\" \"" domainkeySplitted}"
     '';
 
-    zoneLfFilePath = "/var/lib/knot/zones/zone-lf";
     zone-lf = pkgs.writeText "zone-lf" ''
         $ORIGIN lf.
         $TTL 60
         @   IN  SOA dns.lf. monitoring.lasuite.federez.net. (
-                    ${timestamp} ; serial
+                    2025072701 ; serial
                     60 ; refresh
                     60 ; retry
                     60 ; expire
@@ -174,11 +167,11 @@ in
         };
     };
 
-    # Ensure the directory exists and is writable
-    systemd.tmpfiles.rules = [
-        "d /var/lib/knot/zones 0755 knot knot -"
-        "f /var/lib/knot/zones/zone-lasuite-federez-net 0644 knot knot -"
-    ];
+    # # Ensure the directory exists and is writable
+    # systemd.tmpfiles.rules = [
+    #     "d /var/lib/knot/zones 0755 knot knot -"
+    #     "f /var/lib/knot/zones/zone-lasuite-federez-net 0644 knot knot -"
+    # ];
 
     # Force complete restart on zone changes
     systemd.services.knot = {
@@ -212,13 +205,20 @@ in
             acl = acls;
             mod-queryacl = modQueryACLs;
 
+            template = [{
+                id = "default";
+                zonefile-sync = -1;
+                journal-content = "all";
+                serial-policy = "increment";
+            }];
+
             zone = if myName == mapping.dns.master then [
                 {
                     domain = "lasuite.federez.net";
-                    file = zoneLasuiteFederezNetFilePath;
+                    file = zone-lasuite-federez-net;
                     dnssec-signing = "on";
                     dnssec-policy = "default";
-                    zonefile-load = "difference";
+                    zonefile-load = "difference-no-serial";
                     notify = remotesNames;
                     acl = remotesACLNames ++ [
                         "acl_le_challenge"
@@ -226,7 +226,8 @@ in
                 }
                 {
                     domain = "lf";
-                    file = zoneLfFilePath;
+                    file = zone-lf;
+                    zonefile-load = "difference-no-serial";
                     notify = remotesNames;
                     acl = remotesACLNames;
                     module = "mod-queryacl/local";
@@ -253,22 +254,4 @@ in
             ];
         };
     };
-
-    # Write the generated zone file to the writable path
-    systemd.services.writeLasuiteFederezNetZoneFile = {
-        before = [ "knot.service" ];
-        description = "Write initial zone file for lasuite.federez.net";
-        serviceConfig = {
-            ExecStart = "${pkgs.coreutils}/bin/cp '${zone-lasuite-federez-net}' ${zoneLasuiteFederezNetFilePath}";
-        };
-        wantedBy = [ "multi-user.target" ];
-    };
-    systemd.services.writeLfZoneFile = {
-        before = [ "knot.service" ];
-        description = "Write initial zone file for lasuite.federez";
-        serviceConfig = {
-            ExecStart = "${pkgs.coreutils}/bin/cp '${zone-lf}' ${zoneLfFilePath}";
-        };
-        wantedBy = [ "multi-user.target" ];
-    };
 }
\ No newline at end of file