diff --git a/dynette.cron.py b/dynette.cron.py
index bbbd623..6915b24 100755
--- a/dynette.cron.py
+++ b/dynette.cron.py
@@ -5,19 +5,34 @@ import sys
 import json
 from urllib import urlopen
 
-urls = ['http://dynette-dev.herokuapp.com']
-lines = []
+conf_file = '/etc/bind/named.conf.local'    # Include this filename in '/etc/bind/named.conf'
+zone_dir  = '/var/named/data/'              # Do not forget the trailing '/'
+subs_urls = ['http://dyndns.yunohost.org']  # 127.0.0.1 if you install subscribe server locally
+ns1       = 'dynhost.yunohost.org'          # Name servers
+ns2       = 'hostmaster.yunohost.org'
 
-for url in urls:
+allowed_operations = {
+            '.'                  : ['A', 'TXT', 'MX'],
+            'pubsub.'            : ['A'],
+            'muc.'               : ['A'],
+            'vjud'               : ['A'],
+            '_xmpp-client._tcp.' : ['SRV'],
+            '_xmpp-server._tcp.' : ['SRV']
+}
+            
+
+
+lines = []
+for url in subs_urls:
     domains = json.loads(str(urlopen(url +'/domains').read()))
 
     for domain in domains:
         result = json.loads(str(urlopen(url +'/all/'+ domain).read()))
-	if not os.path.exists('/var/named/data/'+ domain +'.db'):
+	if not os.path.exists(zone_dir + domain +'.db'):
             db_lines = [
                 '$ORIGIN .',
                 '$TTL 10 ; 10 seconds',
-                domain+'.   IN SOA  dynhost.yunohost.org hostmaster.yunohost.org. (',
+                domain+'.   IN SOA  '+ ns1 +'. '+ ns2 +'. (',
                 '                                18         ; serial',
                 '                                10800      ; refresh (3 hours)',
                 '                                3600       ; retry (1 hour)',
@@ -25,31 +40,25 @@ for url in urls:
                 '                                10         ; minimum (10 seconds)',
                 '                                )',
                 '$TTL 3600       ; 1 hour',
-                '                        NS      dynhost.yunohost.org.',
-                '                        NS      hostmaster.yunohost.org.',
+                '                        NS      '+ ns1 +'.',
+                '                        NS      '+ ns2 +'.',
                 '',
                 '$ORIGIN '+ domain +'.',
             ]
-            with open('/var/named/data/'+ domain +'.db', 'w') as zone:
+            with open(zone_dir + domain +'.db', 'w') as zone:
                 for line in db_lines:
                     zone.write(line + '\n')
         lines.extend([
                 'zone "'+ domain +'" {',
                 '   type master;',
-                '   file "/var/named/data/'+ domain +'.db"; ',
+                '   file "'+ zone_dir + domain +'.db"; ',
                 '   update-policy {',
         ])
 
         for entry in result:
-            fqdn = entry['subdomain'] +'.'
-            lines.extend([
-                '       grant '+ fqdn +' name '+ fqdn +' A TXT MX;',
-                '       grant '+ fqdn +' name pubsub.'+ fqdn +' A;',
-                '       grant '+ fqdn +' name muc.'+ fqdn +' A;',
-                '       grant '+ fqdn +' name vjud.'+ fqdn +' A;',
-                '       grant '+ fqdn +' name _xmpp-client._tcp.'+ fqdn +' SRV;',
-                '       grant '+ fqdn +' name _xmpp-server._tcp.'+ fqdn +' SRV;',
-            ])
+            for subd, type in allowed_operations.items():
+                if subd == '.': subd = ''
+                lines.append('       grant '+ entry['subdomain'] +'. name '+ subd + entry['subdomain'] +'. ' + ' '.join(type) +';')
 
         lines.extend([
                 '   };',
@@ -57,27 +66,26 @@ for url in urls:
         ])
 
         for entry in result:
-            fqdn = entry['subdomain'] +'.'
             lines.extend([
-                'key '+ fqdn +' {',
+                'key '+ entry['subdomain'] +'. {',
                 '       algorithm hmac-md5;',
                 '       secret "'+ entry['public_key'] +'";',
                 '};',
             ])
 
 
-os.system('cp /etc/bind/named.conf.local /etc/bind/named.conf.local.back')
+os.system('cp '+ conf_file +' '+ conf_file +'.back')
 
-with open('/etc/bind/named.conf.local', 'w') as zone:
+with open(conf_file, 'w') as zone:
     for line in lines:
         zone.write(line + '\n')
 
-os.system('chown -R bind:bind /var/named /etc/bind/named.conf.local')
+os.system('chown -R bind:bind '+ zone_dir +' '+ conf_file)
 if os.system('rndc reload') == 0:
     exit(0)
 else:
-    os.system('cp /etc/bind/named.conf.local /etc/bind/named.conf.local.bad')
-    os.system('cp /etc/bind/named.conf.back /etc/bind/named.conf.local')
+    os.system('cp '+ conf_file +' '+ conf_file +'.bad')
+    os.system('cp '+ conf_file +'.back '+ conf_file)
     os.system('rndc reload')
     print("An error occured ! Please check daemon.log and your conf.bad")
     exit(1)