diff --git a/.gitignore b/.gitignore
index 75fc1e4..c5c9a9b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .env
 .envrc
+.DS_Store
\ No newline at end of file
diff --git a/subdomains.photos-nas.ovh.txt b/subdomains.photos-nas.ovh.txt
index 0c2edcd..4353bd5 100644
--- a/subdomains.photos-nas.ovh.txt
+++ b/subdomains.photos-nas.ovh.txt
@@ -11,6 +11,7 @@ drive
 ds916
 ds923
 files
+ftp
 git
 gitea
 glances
diff --git a/sync_pihole_lan.sh b/sync_pihole_lan.sh
index e8bcac0..02649b7 100755
--- a/sync_pihole_lan.sh
+++ b/sync_pihole_lan.sh
@@ -1,7 +1,13 @@
 #!/usr/bin/env bash
 
 # Sync_pihole_lan.sh synchronise the /etc/pihole/lan.list file with your Subdomains
-# v3.0
+# v4.0 synchro avec la zone photos-nas.ovh sur OVH via l'API
+
+# 1. liste principale des sous-domaines => subdomains.photos-nas.ovh.txt
+# 2. sauvegarde des lan.list de chaque pihole => lan.list.1 et lan.list.2
+# 3. lan.list à jour que l'on copie sur chaque pihole
+# 4. on récupère via l'API la list des CNAME sur la zone photos-nas.ovh => zone.photos-nas.ovh
+# 5. on ajoute ou supprime les CNAME sur la zone photos-nas.ovh
 
 italic="\033[3m"
 underline="\033[4m"
@@ -21,7 +27,7 @@ reset="\033[0m"
 absent=()
 delete=()
 domain=".photos-nas.ovh"
-not_required=("drive" "files" "gitea" "home-assistant" "homebridge" "portainer" "tunes" "wg" "yatch")
+not_required=("drive" "files" "gitea" "home-assistant" "homebridge" "portainer" "tunes" "wg" "www" "yatch")
 not_used=("ds916" "musiiic" "notif")
 
 pihole1=192.168.2.116
@@ -29,6 +35,8 @@ pihole2=192.168.2.216
 
 echo -e "${greenbold}Sync_pihole_lan.sh synchronise the /etc/pihole/lan.list file with your Subdomains ...${reset}\n"
 
+: << 'COMMENTS'
+
 cat < /dev/null > /dev/tcp/1.1.1.1/53
 if [[ $? -ne 0 ]]; then
 	echo -e "\n${red}No Internet connection !${reset}"
@@ -39,7 +47,7 @@ fi
 
 echo -e "${bold}Backup ${italic}lan.list...${reset}"
 
-# Sauvegarde du /etc/pihole/lan.list de chaque pihole vers lan.list.1 et lan.list.2
+# 1. Sauvegarde du /etc/pihole/lan.list de chaque pihole vers lan.list.1 et lan.list.2
 ping -q -c1 "$pihole1" &>/dev/null && ssh -p51322 root@"$pihole1" "cat /etc/pihole/lan.list" > lan.list.1 || echo -e "\n${red}Pihole1 is unreachable !'${reset}"
 ping -q -c1 "$pihole2" &>/dev/null && ssh -p51522 root@"$pihole2" "cat /etc/pihole/lan.list" > lan.list.2 || echo -e "${red}Pihole2 is unreachable !'${reset}"
 
@@ -62,11 +70,13 @@ else
 	exit
 fi
 
+COMMENTS
+
 nb_dynhost=$(awk 'END { print NR }' lan.list)
 echo -e "\n$nb_dynhost dynhost found in lan.list !"
 
 
-# Suppression des 'not_required' et 'not_used' dans le lan.list
+# 2. Suppression des 'not_required' et 'not_used' dans le lan.list
 
 echo -e "${bold}\nFind extra dynhost in ${italic}lan.list...${reset}"
 
@@ -74,7 +84,9 @@ while IFS= read -r line; do
 	
 	ndd=$(echo "${line}" | awk '{print $2}' | awk -F"." '{print $1}')
 	if [[ " ${not_required[*]} " =~ " $ndd " ]] || [[ " ${not_used[*]} " =~ " $ndd " ]]; then
-		delete+=(${ndd})
+		if [[ ! "$line" == *asusrouter* ]]; then
+			delete+=(${ndd})
+		fi
 	fi
 		
 done < lan.list
@@ -102,8 +114,7 @@ else
 fi
 
 
-# Ajout des DynHOST de OVH (Zones DNS) dans les 2 lan.list (pihole1 & pihole2)
-# Zones DNS -> photos-nas.ovh -> Historique des zones
+# 3. Recherche des sous-domaines manquants dans lan.list (d'après subdomains.photos-nas.ovh.txt)
 
 echo -e "${bold}\nFind missing dynhost in ${italic}lan.list...${reset}"
 
@@ -169,11 +180,11 @@ if [ "$choice" == "y" ] || [ "$choice" == "Y" ]; then
 fi
 
 
-# On exporte lan.list vers chaque /etc/pihole/lan.list (pihole1 et pihole2)
+# 4. On exporte lan.list vers chaque /etc/pihole/lan.list (pihole1 et pihole2)
 
-: << 'COMMENTS'
+: << 'COMMENTS2'
 echo "toto"
-COMMENTS
+
 
 b=$(echo -e "Do you want to export ${italic}lan.list${reset} to ${bold}pihole1${reset} ($pihole1) and ${bold}pihole2${reset} ($pihole2) ? (y/n)")
 read -p "$b" choice
@@ -207,7 +218,203 @@ else
 	echo -e "OK, let's continue..."
 fi
 
-# On supprime les fichiers temporaires
+COMMENTS2
+
+# 5. On compare la liste principale des sous-domaines subdomains.photos-nas.ovh.txt avec la zone photos-nas.ovh sur ovh (via l'API)
+
+# On récupère la zone photos-nas.ovh depuis ovh
+# a) Zones DNS -> photos-nas.ovh -> Historique des zones => photos-nas.ovh_dns_data.txt
+# b) API OVH -> liste des CNAME de la zone photos-nas.ovh => zone.photos-nas.ovh
+
+HTTP_QUERY="https://api.ovh.com/1.0/domain"
+TIME=$(curl -s https://api.ovh.com/1.0/auth/time)
+
+ZONE_FILE="zone.photos-nas.ovh"
+ZONE="photos-nas.ovh"
+
+source ovh_secrets.txt
+
+export_zone() {
+	HTTP_METHOD="GET"
+	HTTP_BODY=""
+	HTTP_QUERY="https://eu.api.ovh.com/v1/domain/zone/$ZONE/export"
+
+	CLEAR_SIGN="$OVH_APP_SECRET+$OVH_CONSUMER_KEY+$HTTP_METHOD+$HTTP_QUERY+$HTTP_BODY+$TIME"
+	SIG='$1$'$(echo -n $CLEAR_SIGN | openssl dgst -sha1 | sed -e 's/^.* //')
+	
+	curl --silent -X $HTTP_METHOD -H "Content-Type:application/json;charset=utf-8"  -H "X-Ovh-Application:$OVH_APP_KEY" -H "X-Ovh-Timestamp:$TIME" -H "X-Ovh-Signature:$SIG" -H "X-Ovh-Consumer:$OVH_CONSUMER_KEY" --data "$HTTP_BODY" $HTTP_QUERY | sed 's/\\n/\n/g' | sed 's/\"//g' | grep 'CNAME'> $ZONE_FILE
+	#curl --silent -X $HTTP_METHOD -H "Content-Type:application/json;charset=utf-8"  -H "X-Ovh-Application:$OVH_APP_KEY" -H "X-Ovh-Timestamp:$TIME" -H "X-Ovh-Signature:$SIG" -H "X-Ovh-Consumer:$OVH_CONSUMER_KEY" --data "$HTTP_BODY" $HTTP_QUERY | sed 's/\\n/\n/g' | grep 'CNAME'
+	#  |sed 's/,//g' |sed 's/\\n/\'$'\n''/g'
+	# | sed 's/\\n/\n/g'
+	#echo $?
+	if [ $? == 0 ]; then
+		echo -e "File ${italic}$ZONE_FILE${reset} have been created from OVH $ZONE zone !"
+	fi
+}
+
+remove_cname() {
+	record=""
+	
+	HTTP_METHOD="GET"
+	HTTP_BODY=""
+	HTTP_QUERY="https://eu.api.ovh.com/v1/domain/zone/$ZONE/record?fieldType=CNAME&subDomain=$1"
+
+	CLEAR_SIGN="$OVH_APP_SECRET+$OVH_CONSUMER_KEY+$HTTP_METHOD+$HTTP_QUERY+$HTTP_BODY+$TIME"
+	SIG='$1$'$(echo -n $CLEAR_SIGN | openssl dgst -sha1 | sed -e 's/^.* //')
+	
+	record=$(curl --silent -X $HTTP_METHOD -H "Content-Type:application/json;charset=utf-8"  -H "X-Ovh-Application:$OVH_APP_KEY" -H "X-Ovh-Timestamp:$TIME" -H "X-Ovh-Signature:$SIG" -H "X-Ovh-Consumer:$OVH_CONSUMER_KEY" --data "$HTTP_BODY" $HTTP_QUERY | sed 's/.//;s/.$//')
+	#echo $?	# 0
+	if [ $? == 0 ] && [ -n "$record" ]; then
+		echo "Record number for CNAME $1 is $record !"
+		
+		HTTP_METHOD="DELETE"
+		HTTP_BODY=""
+		HTTP_QUERY="https://eu.api.ovh.com/v1/domain/zone/$ZONE/record/$record"
+
+		CLEAR_SIGN="$OVH_APP_SECRET+$OVH_CONSUMER_KEY+$HTTP_METHOD+$HTTP_QUERY+$HTTP_BODY+$TIME"
+		SIG='$1$'$(echo -n $CLEAR_SIGN | openssl dgst -sha1 | sed -e 's/^.* //')
+	
+		curl --silent -X $HTTP_METHOD -H "Content-Type:application/json;charset=utf-8"  -H "X-Ovh-Application:$OVH_APP_KEY" -H "X-Ovh-Timestamp:$TIME" -H "X-Ovh-Signature:$SIG" -H "X-Ovh-Consumer:$OVH_CONSUMER_KEY" --data "$HTTP_BODY" $HTTP_QUERY
+		#echo $? # 0
+		if [ $? == 0 ]; then
+			echo "CNAME $1 have been successfully deleted !"
+		else
+			echo "Error while deleting CNAME $1 !"
+		fi
+	
+	else
+		echo "No record number found for CNAME $1 !"
+	fi
+	
+}
+
+add_cname() {
+	HTTP_METHOD="POST"
+	HTTP_BODY="{\"fieldType\": \"CNAME\",\"subDomain\": \"$1\",\"target\": \"photos-nas.ovh.\",\"ttl\": 0}"
+	HTTP_QUERY="https://eu.api.ovh.com/v1/domain/zone/$ZONE/record"
+
+	CLEAR_SIGN="$OVH_APP_SECRET+$OVH_CONSUMER_KEY+$HTTP_METHOD+$HTTP_QUERY+$HTTP_BODY+$TIME"
+	SIG='$1$'$(echo -n $CLEAR_SIGN | openssl dgst -sha1 | sed -e 's/^.* //')
+	
+	curl --silent -X $HTTP_METHOD -H "Content-Type:application/json;charset=utf-8"  -H "X-Ovh-Application:$OVH_APP_KEY" -H "X-Ovh-Timestamp:$TIME" -H "X-Ovh-Signature:$SIG" -H "X-Ovh-Consumer:$OVH_CONSUMER_KEY" --data "$HTTP_BODY" $HTTP_QUERY
+	#echo $? # null
+	if [ $? == 0 ]; then
+		echo "CNAME $1 have been successfully added !"
+	else
+		echo "Error adding CNAME $1 !"
+	fi
+	
+	HTTP_BODY=""
+	HTTP_QUERY="https://eu.api.ovh.com/v1/domain/zone/$ZONE/refresh"
+
+	CLEAR_SIGN="$OVH_APP_SECRET+$OVH_CONSUMER_KEY+$HTTP_METHOD+$HTTP_QUERY+$HTTP_BODY+$TIME"
+	SIG='$1$'$(echo -n $CLEAR_SIGN | openssl dgst -sha1 | sed -e 's/^.* //')
+
+	curl --silent -X $HTTP_METHOD -H "Content-Type:application/json;charset=utf-8"  -H "X-Ovh-Application:$OVH_APP_KEY" -H "X-Ovh-Timestamp:$TIME" -H "X-Ovh-Signature:$SIG" -H "X-Ovh-Consumer:$OVH_CONSUMER_KEY" --data "$HTTP_BODY" $HTTP_QUERY
+	#echo $?	# 0
+	if [ $? == 0 ]; then
+		echo "Zone $ZONE have been successfully refresh !"
+	else
+		echo "Error while refreshing zone $ZONE !"
+	fi
+}
+
+
+echo -e "${bold}\nGet extra CNAME records list from zone ${italic}$ZONE${reset} (API OVH)..."
+
+export_zone
+
+#ovh_cname_list=$(cat photos-nas.ovh_dns_data.txt | grep "CNAME" | sed '1d')
+
+
+ovh_cname_list=$(cat $ZONE_FILE)
+subdomains_list=$(cat subdomains.photos-nas.ovh.txt)
+extra_ovh=()
+absent_ovh=()
+
+echo -e "${bold}\nFind extra CNAME records in zone ${italic}$ZONE${reset}..."
+
+while IFS= read -r line; do
+				
+	dynhost=$(echo "${line}" | awk '{print $1}')
+	grep -q $dynhost subdomains.photos-nas.ovh.txt
+
+	if [ $? != 0 ]; then
+		if [[ ! " ${not_required[*]} " =~ " $dynhost " ]] && [[ ! " ${not_used[*]} " =~ " $dynhost " ]]; then
+			#echo "$dynhost présent sur ovh"
+			extra_ovh+=(${dynhost})
+		fi
+	fi 
+	
+	# 55 sur ovh
+	# 54 sur subdomains.photos-nas.ovh.txt
+	# 43 sur lan.list
+					
+done <<< "$ovh_cname_list"
+
+if [ ${#extra_ovh[@]} -ge 1 ]; then
+
+	echo -e "${red}To delete: ${extra_ovh[@]}${reset}"
+
+	for val in ${!extra_ovh[@]}
+	do
+   		value="${extra_ovh[$val]}"
+   			
+   		b=$(echo -e "Do you want to delete ${red}$value${reset} CNAME in OVH zone ${italic}$ZONE${reset} ? (y/n)")
+		read -p "$b" choice
+		if [ "$choice" == "y" ] || [ "$choice" == "Y" ]; then
+   			remove_cname "$value"
+		fi
+			
+	done
+		#nb_dynhost=$(awk 'END { print NR }' lan.list)
+		#echo "$nb_dynhost dynhost found in lan.list !"
+	#fi
+else
+	echo "None"
+fi
+
+echo -e "${bold}\nFind missing CNAME records in zone ${italic}$ZONE${reset}..."
+
+while IFS= read -r line; do
+				
+	dynhost=$(echo "${line}" | awk '{print $1}')
+	grep -q $dynhost zone.photos-nas.ovh
+
+	if [ $? != 0 ]; then
+		if [[ ! " ${not_required[*]} " =~ " $dynhost " ]] && [[ ! " ${not_used[*]} " =~ " $dynhost " ]]; then
+			#echo "$dynhost absent sur ovh"
+			absent_ovh+=(${dynhost})
+		fi
+	fi 
+	
+done <<< "$subdomains_list"
+
+if [ ${#absent_ovh[@]} -ge 1 ]; then
+
+	echo -e "${red}To add: ${absent_ovh[@]}${reset}"
+
+
+	for val in ${!absent_ovh[@]}
+	do
+   		value="${absent_ovh[$val]}"
+   			
+   		b=$(echo -e "Do you want to add ${red}$value${reset} CNAME in OVH zone ${italic}$ZONE${reset}  ? (y/n)")
+		read -p "$b" choice
+		if [ "$choice" == "y" ] || [ "$choice" == "Y" ]; then
+			echo "$value"
+			add_cname "$value"
+		fi
+	done
+		#nb_dynhost=$(awk 'END { print NR }' lan.list)
+		#echo "$nb_dynhost dynhost found in lan.list !"
+
+else
+	echo "None"
+fi
+
+
+# 6. On supprime les fichiers temporaires
 [ -f /tmp/temp_file.list ] && rm /tmp/temp_file.list
 [ -f lan.list.sorted ] && rm lan.list.sorted