diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b8d7d33
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/core/db.php
\ No newline at end of file
diff --git a/core/config.php b/core/config.php
deleted file mode 100644
index 9397d17..0000000
--- a/core/config.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-$host = '1Panel-mysql-x'; // 数据库地址
-$db = ''; // 数据库名
-$user = ''; // 数据库用户名
-$pass = ''; // 数据库密码
-
-try {
-    $pdo = new PDO("mysql:host=$host;dbname=$db", $user, $pass);
-    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
-} catch (PDOException $e) {
-    echo "Connection failed: " . $e->getMessage();
-}
-?>
diff --git a/index.php b/index.php
index cbb1d62..1036c46 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,5 @@
 <?php
-include 'core/config.php';
+include 'core/db.php';
 include 'core/clean.php';
 
 // TODO: cookie management