diff --git a/f_config/DB.php b/f_config/DB.php
index 0f474331..492b0dae 100644
--- a/f_config/DB.php
+++ b/f_config/DB.php
@@ -2,7 +2,7 @@
 require_once('_common.php');
 require_once(ROOT.'/f_config/SETTING.php');
 
-if($SETTING->isExist()) {
+if($SETTING->isExists()) {
     require_once($SETTING->getSettingFile());
 } else {
     Error('설정 파일이 없습니다. 설정을 먼저 하십시요!');
diff --git a/f_config/MAIL.php b/f_config/MAIL.php
index ab5da471..a9b55b2f 100644
--- a/f_config/MAIL.php
+++ b/f_config/MAIL.php
@@ -3,7 +3,7 @@ require_once('_common.php');
 require_once(ROOT.'/f_func/class._Mail.php');
 require_once(ROOT.'/f_config/SETTING.php');
 
-if($SETTING->isExist()) {
+if($SETTING->isExists()) {
     $MAIL = new _Mail();
 } else {
     Error('설정 파일이 없습니다. 설정을 먼저 하십시요!');
diff --git a/f_config/app.php b/f_config/app.php
index f4177a50..074af660 100644
--- a/f_config/app.php
+++ b/f_config/app.php
@@ -17,10 +17,17 @@ define('MEMBER', 'member');
 define('MANAGE', 'manage');
 define('ICON', 'icon');
 
-$serverList = [
-    'che'=>['체', 'white', new _Setting(__DIR__.'/../che')],
-    'kwe'=>['퀘', 'yellow', new _Setting(__DIR__.'/../kwe')],
-    'pwe'=>['풰', 'orange', new _Setting(__DIR__.'/../pwe')],
-    'twe'=>['퉤', 'magenta', new _Setting(__DIR__.'/../twe')],
-    'hwe'=>['훼', 'red', new _Setting(__DIR__.'/../hwe')]
-];
+function getServerConfigList(){
+    static $serverList = null;
+    if($serverList !== null){
+        return $serverList;
+    }
+    $serverList = [
+        'che'=>['체', 'white', new _Setting(__DIR__.'/../che')],
+        'kwe'=>['퀘', 'yellow', new _Setting(__DIR__.'/../kwe')],
+        'pwe'=>['풰', 'orange', new _Setting(__DIR__.'/../pwe')],
+        'twe'=>['퉤', 'magenta', new _Setting(__DIR__.'/../twe')],
+        'hwe'=>['훼', 'red', new _Setting(__DIR__.'/../hwe')]
+    ];
+    return $serverList;    
+}
\ No newline at end of file
diff --git a/f_func/class._Setting.php b/f_func/class._Setting.php
index 830cdf5c..5a043c2f 100644
--- a/f_func/class._Setting.php
+++ b/f_func/class._Setting.php
@@ -17,7 +17,7 @@ class _Setting {
         }
     }
 
-    public function isExist() {
+    public function isExists() {
         return $this->exist;
     }
 
diff --git a/f_install/j_create_admin.php b/f_install/j_create_admin.php
index 73d01937..7a40dab7 100644
--- a/f_install/j_create_admin.php
+++ b/f_install/j_create_admin.php
@@ -27,7 +27,7 @@ if(strlen($password)!=128){
     ]);
 }
 
-if(!$SETTING->isExist()){
+if(!$SETTING->isExists()){
     returnJson([
         'result'=>false,
         'reason'=>'DB 설정이 완료되지 않았습니다.'
diff --git a/f_install/j_install_status.php b/f_install/j_install_status.php
index 1b9f2078..fb60f7c4 100644
--- a/f_install/j_install_status.php
+++ b/f_install/j_install_status.php
@@ -17,7 +17,7 @@ function dbSQLFail($params){
     ]);
 }
 
-if(!$SETTING->isExist()){
+if(!$SETTING->isExists()){
     returnJson([
         'step'=>'config'
     ]);
diff --git a/f_install/j_setup_db.php b/f_install/j_setup_db.php
index c30341cb..41c639ee 100644
--- a/f_install/j_setup_db.php
+++ b/f_install/j_setup_db.php
@@ -48,7 +48,7 @@ if(file_exists(ROOT.'/d_setting/conf.php') && is_dir(ROOT.'/d_setting/conf.php')
     ]);
 }
 
-if($SETTING->isExist()){
+if($SETTING->isExists()){
     returnJson([
         'result'=>false,
         'reason'=>'이미 conf.php 파일이 있습니다'
diff --git a/i_entrance/adminPost.php b/i_entrance/adminPost.php
index 38bdb460..bb6ff2ad 100644
--- a/i_entrance/adminPost.php
+++ b/i_entrance/adminPost.php
@@ -25,7 +25,7 @@ $db = getRootDB();
 $member = $db->queryFirstRow('SELECT `GRADE` FROM `MEMBER` WHERE `NO` = %i', $SESSION->NoMember());
 
 function doServerModeSet($server, $select, &$response){
-    global $serverList;
+    $serverList = getServerConfigList();
     $settingObj = $serverList[$server][2];
 
     $serverDir = $settingObj->getShortName();
diff --git a/i_entrance/serverListPost.php b/i_entrance/serverListPost.php
index 402496ff..da50350d 100644
--- a/i_entrance/serverListPost.php
+++ b/i_entrance/serverListPost.php
@@ -6,14 +6,14 @@ require_once(ROOT.'/f_config/SESSION.php');
 // 외부 파라미터
 $response['server'] = [];
 
-foreach($serverList as $serverInfo){
+foreach(getServerConfigList() as $serverInfo){
     list($serverKorName, $serverColor, $setting) = $serverInfo;
 
     $serverObj = [
         'color'=>$serverColor,
         'korName'=>$serverKorName,
         'name'=>$setting->getShortName(),
-        'enable'=>$setting->isExist()
+        'enable'=>$setting->isExists()
     ];
 
     $response['server'][] = $serverObj;
diff --git a/index.php b/index.php
index d0d8779c..b00aac17 100644
--- a/index.php
+++ b/index.php
@@ -2,7 +2,7 @@
 require('_common.php');
 require(ROOT.'/f_config/SETTING.php');
 
-if(!$SETTING->isExist()){
+if(!$SETTING->isExists()){
     header ('Location:install.php');
     die();
 }