diff --git a/Update_DDNS_OVH.sh b/Update_DDNS_OVH.sh
new file mode 100644
index 0000000..80f5b49
--- /dev/null
+++ b/Update_DDNS_OVH.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+
+# Define variables (replace with your credentials)
+WORK_DIR="/path/to/workdir"  # Update with your desired working directory
+LOGIN_OVH="your_dynhost_login@domain.tld"
+PWD_OVH="your_dynhost_password"
+URL_OVH="subdomain.domain.tld"
+
+# Define IP retrieval URLs
+ipv4_url="https://api.ipify.org"
+ipv6_url="https://api6.ipify.org"
+
+# Define IP regex patterns
+ipv4_pattern="^([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}$"
+ipv6_pattern="^([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$"  # Simple IPv6 regex (can be improved)
+
+# Function to update OVH record (CORRECTED)
+update_ovh_ddns() {
+  local ip="$1"
+  local ip_type="$2"
+
+  echo "Updating $ip_type address ($ip) at OVH..."
+
+  # Create the authentication string
+  local auth_string="$LOGIN_OVH:$PWD_OVH"
+
+  # Encode the authentication string using base64
+  local encoded_auth=$(printf "%s" "$auth_string" | base64)
+
+  # Construct the Authorization header
+  local auth_header="Authorization: Basic $encoded_auth"
+
+  local update_url="https://dns.eu.ovhapis.com/nic/update?system=dyndns&hostname=$URL_OVH&myip=$ip"
+
+  # Use curl with the corrected header
+  local response=$(curl -s -H "$auth_header" "$update_url")
+
+  if [[ "$response" == "good $ip" || "$response" == "nochg $ip" ]]; then
+    echo "OVH update successful for $ip_type. OVH response: $response"
+    echo "$ip" > "$WORK_DIR/maj_${ip_type}_ip.txt"
+  elif [[ "$response" == "abuse" ]]; then
+    echo "OVH update failed for $ip_type. OVH response: $response - Too many updates, wait a bit"
+  else
+    echo "Error updating OVH for $ip_type: $response"
+  fi
+}
+
+# Check if work directory exists
+if [ ! -d "$WORK_DIR" ]; then
+  echo "Work directory doesn't exist, creating..."
+  mkdir -p "$WORK_DIR"
+  echo "0.0.0.0" > "$WORK_DIR/maj_ipv4_ip.txt"
+  echo "::" > "$WORK_DIR/maj_ipv6_ip.txt"  # Default value for IPv6
+fi
+
+# Process IPv4
+ipv4=$(curl -s "$ipv4_url" | tr -d '\r')
+if [[ $ipv4 =~ $ipv4_pattern ]]; then
+  old_ipv4=$(cat "$WORK_DIR/maj_ipv4_ip.txt" || echo "0.0.0.0")
+  if [[ $ipv4 != $old_ipv4 ]]; then
+    echo "** Your IPv4 address has changed **"
+    echo "New IPv4: $ipv4"
+    echo "Old IPv4: $old_ipv4"
+    update_ovh_ddns "$ipv4" "ipv4"
+  else
+    echo "Your IPv4 address hasn't changed."
+  fi
+else
+  echo "Warning: Retrieved IPv4 address ($ipv4) is not in a valid format."
+fi
+
+# Process IPv6
+ipv6=$(curl -s "$ipv6_url" | tr -d '\r')
+if [[ $ipv6 =~ $ipv6_pattern ]]; then
+  old_ipv6=$(cat "$WORK_DIR/maj_ipv6_ip.txt" || echo "::")
+  if [[ $ipv6 != $old_ipv6 ]]; then
+    echo "** Your IPv6 address has changed **"
+    echo "New IPv6: $ipv6"
+    echo "Old IPv6: $old_ipv6"
+    update_ovh_ddns "$ipv6" "ipv6"
+  else
+    echo "Your IPv6 address hasn't changed."
+  fi
+else
+  echo "Warning: Retrieved IPv6 address ($ipv6) is not in a valid format."
+fi
\ No newline at end of file