diff --git a/.env-default b/.env-default
index a830def..37b4748 100644
--- a/.env-default
+++ b/.env-default
@@ -2,3 +2,5 @@ DYNDNS_USER=""
 DYNDNS_PASSWORD=""
 DYNDNS_DOMAIN_UPDATE=""
 LOCAL=false
+REAL_PUBLIC_IP_SERVICE="http://hosting.ovh.net"
+DNS_UPDATE_SRC="https://apis.com/hostname={toUpdateHostname}&myip={realPublicIp}"
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 5476273..fbe9d80 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -12,8 +12,5 @@ services:
       - ./project:/var/www/html
       - ./logs/:/var/log/cron
       - ./service/logrotate:/etc/logrotate.d/cron-log
-    environment:
-      DYNDNS_USER: "${DYNDNS_USER}"
-      DYNDNS_PASSWORD: "${DYNDNS_PASSWORD}"
-      DYNDNS_DOMAIN_UPDATE: "${DYNDNS_DOMAIN_UPDATE}"
-      LOCAL: "${LOCAL}"
+    env_file:
+      - .env
\ No newline at end of file
diff --git a/project/updateip.php b/project/updateip.php
index c3baba0..5335897 100644
--- a/project/updateip.php
+++ b/project/updateip.php
@@ -11,8 +11,23 @@ if (isset($_ENV['LOCAL']) && $_ENV['LOCAL']) {
     $lines[] = "die in local";
     $canUpdate = false;
 }
-// old
-// https://www.duckdns.org/update?domains=rhost.duckdns.org&token=1b4ab267-b818-4407-8351-8800c6f4fd78
+$needEnvKeys = [
+    "REAL_PUBLIC_IP_SERVICE","DYNDNS_DOMAIN_UPDATE","DYNDNS_USER","DYNDNS_PASSWORD","DNS_UPDATE_SRC"
+];
+$emptyEnvKeys = [];
+
+foreach ($needEnvKeys as $needEnvKey) {
+    if (!isset($_ENV[$needEnvKey])) {
+        $emptyEnvKeys[] = $needEnvKey;
+    }
+}
+
+if (count($emptyEnvKeys) > 0) {
+    $canUpdate = false;
+    $lines[] = "Empty env configuration!";
+    $lines[] = "The following env configuration keys are missing:\n";
+    $lines[] = implode(", ", $emptyEnvKeys);
+}
 
 if ($canUpdate) {
     $toUpdateString = $_ENV['DYNDNS_DOMAIN_UPDATE'];
@@ -25,7 +40,7 @@ if ($canUpdate) {
     $toUpdateArray = explode(",", $toUpdateString);
     $useragent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.89 Safari/537.36';
     $ch = curl_init();
-    curl_setopt($ch, CURLOPT_URL, "http://rhostoh.cluster029.hosting.ovh.net/");
+    curl_setopt($ch, CURLOPT_URL, $_ENV['REAL_PUBLIC_IP_SERVICE']);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
     curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
@@ -46,8 +61,10 @@ if ($canUpdate) {
                 $lines[] = "$toUpdate: same (not update)";
                 continue;
             }
-            $url = "https://dns.eu.ovhapis.com/nic/update?system=dyndns&hostname=$toUpdate&myip=$serverIp";
-
+            $url = strtr($_ENV['DNS_UPDATE_SRC'],[
+                "{toUpdateHostname}" => $toUpdate,
+                "{realPublicIp}" => $serverIp,
+            ]);
             $ch = curl_init();
             curl_setopt($ch, CURLOPT_URL, $url);
             curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);