diff --git a/adm/admin.lib.php b/adm/admin.lib.php
index adf71fd6d..1f1245cff 100644
--- a/adm/admin.lib.php
+++ b/adm/admin.lib.php
@@ -159,7 +159,6 @@ function icon($act, $link='', $target='_parent')
 function rm_rf($file)
 {
     if (file_exists($file)) {
-        @chmod($file, G5_FILE_PERMISSION);
         if (is_dir($file)) {
             $handle = opendir($file);
             while($filename = readdir($handle)) {
@@ -167,9 +166,13 @@ function rm_rf($file)
                     rm_rf($file.'/'.$filename);
             }
             closedir($handle);
-            rmdir($file);
-        } else
-            unlink($file);
+
+            @chmod($file, G5_DIR_PERMISSION);
+            @rmdir($file);
+        } else {
+            @chmod($file, G5_FILE_PERMISSION);
+            @unlink($file);
+        }
     }
 }
 
diff --git a/adm/config_form.php b/adm/config_form.php
index cec883d30..6dec4a4d5 100644
--- a/adm/config_form.php
+++ b/adm/config_form.php
@@ -1101,5 +1101,33 @@ function fconfigform_submit(f)
 </script>
 
 <?php
+// 본인확인 모듈 실행권한 체크
+if($config['cf_cert_use']) {
+    // kcb일 때
+    if($config['cf_cert_ipin'] == 'kcb' || $config['cf_cert_hp'] == 'kcb') {
+        // 실행모듈
+        if(strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
+            if(PHP_INT_MAX == 2147483647) // 32-bit
+                $exe = G5_OKNAME_PATH.'/bin/okname';
+            else
+                $exe = G5_OKNAME_PATH.'/bin/okname_x64';
+        } else {
+            if(PHP_INT_MAX == 2147483647) // 32-bit
+                $exe = G5_OKNAME_PATH.'/bin/okname.exe';
+            else
+                $exe = G5_OKNAME_PATH.'/bin/oknamex64.exe';
+        }
+
+        echo module_exec_check($exe, 'okname');
+    }
+
+    // kcp일 때
+    if($config['cf_cert_hp'] == 'kcp') {
+        $exe = G5_KCPCERT_PATH.'/bin/ct_cli';
+
+        echo module_exec_check($exe, 'ct_cli');
+    }
+}
+
 include_once ('./admin.tail.php');
 ?>
diff --git a/adm/popular_rank.php b/adm/popular_rank.php
index fc6ab489c..a6b396c47 100644
--- a/adm/popular_rank.php
+++ b/adm/popular_rank.php
@@ -1,7 +1,6 @@
 <?php
 $sub_menu = "300400";
 include_once('./_common.php');
-include_once(G5_PLUGIN_PATH.'/jquery-ui/datepicker.php');
 
 auth_check($auth[$sub_menu], 'r');
 
@@ -31,13 +30,14 @@ $listall = '<a href="'.$_SERVER['PHP_SELF'].'" class="ov_listall">전체목록</
 
 $g5['title'] = '인기검색어순위';
 include_once('./admin.head.php');
+include_once(G5_PLUGIN_PATH.'/jquery-ui/datepicker.php');
 
 $colspan = 3;
 ?>
 
 <script>
 $(function(){
-    $("#fr_date, #to_date").datepicker({ changeMonth: true, changeYear: true, dateFormat: "yy-mm-dd", showButtonPanel: true, yearRange: "c-99:c+99", maxDate: "+0d" }); 
+    $("#fr_date, #to_date").datepicker({ changeMonth: true, changeYear: true, dateFormat: "yy-mm-dd", showButtonPanel: true, yearRange: "c-99:c+99", maxDate: "+0d" });
 });
 </script>
 
diff --git a/adm/visit.sub.php b/adm/visit.sub.php
index 7cb87dd68..b153152b1 100644
--- a/adm/visit.sub.php
+++ b/adm/visit.sub.php
@@ -1,9 +1,9 @@
 <?php
 if (!defined('_GNUBOARD_')) exit;
 
-include_once(G5_PLUGIN_PATH.'/jquery-ui/datepicker.php');
 include_once(G5_LIB_PATH.'/visit.lib.php');
 include_once('./admin.head.php');
+include_once(G5_PLUGIN_PATH.'/jquery-ui/datepicker.php');
 
 if (empty($fr_date)) $fr_date = G5_TIME_YMD;
 if (empty($to_date)) $to_date = G5_TIME_YMD;
@@ -38,7 +38,7 @@ $query_string = $qstr ? '?'.$qstr : '';
 
 <script>
 $(function(){
-    $("#fr_date, #to_date").datepicker({ changeMonth: true, changeYear: true, dateFormat: "yy-mm-dd", showButtonPanel: true, yearRange: "c-99:c+99", maxDate: "+0d" }); 
+    $("#fr_date, #to_date").datepicker({ changeMonth: true, changeYear: true, dateFormat: "yy-mm-dd", showButtonPanel: true, yearRange: "c-99:c+99", maxDate: "+0d" });
 });
 
 function fvisit_submit(act)
diff --git a/adm/visit_search.php b/adm/visit_search.php
index 3408614ed..1c3d6c964 100644
--- a/adm/visit_search.php
+++ b/adm/visit_search.php
@@ -1,13 +1,13 @@
-<?php 
+<?php
 $sub_menu = '200810';
 include_once('./_common.php');
 include_once(G5_PATH.'/lib/visit.lib.php');
-include_once(G5_PLUGIN_PATH.'/jquery-ui/datepicker.php');
 
 auth_check($auth[$sub_menu], 'r');
 
 $g5['title'] = '접속자검색';
 include_once('./admin.head.php');
+include_once(G5_PLUGIN_PATH.'/jquery-ui/datepicker.php');
 
 $search_word = escape_trim($_GET['search_word']);
 $search_sort = escape_trim($_GET['search_sort']);
@@ -22,7 +22,7 @@ $listall = '<a href="'.$_SERVER['PHP_SELF'].'">처음</a>'; //페이지 처음
     <?=$listall?>
     <label for="sch_sort" class="sound_only">검색분류</label>
     <select name="search_sort" id="sch_sort" class="search_sort">
-        <?php 
+        <?php
         //echo '<option value="vi_ip" '.($search_sort=='vi_ip'?'selected="selected"':'').'>IP</option>'; //selected 추가
         if($search_sort=='vi_ip'){ //select 안의 옵셥값이 vi_ip면
             echo '<option value="vi_ip" selected="selected">IP</option>'; //selected 추가
@@ -59,7 +59,7 @@ $listall = '<a href="'.$_SERVER['PHP_SELF'].'">처음</a>'; //페이지 처음
     </tr>
     </thead>
     <tbody>
-    <?php 
+    <?php
     $sql_common = " from {$g5['visit_table']} ";
     if ($search_sort) {
         if($search_sort=='vi_ip' || $search_sort=='vi_date'){
@@ -79,7 +79,7 @@ $listall = '<a href="'.$_SERVER['PHP_SELF'].'">처음</a>'; //페이지 처음
     if ($page == "") $page = 1; // 페이지가 없으면 첫 페이지 (1 페이지)
     $from_record = ($page - 1) * $rows; // 시작 열을 구함
 
-    $sql = " select * 
+    $sql = " select *
                 {$sql_common}
                 {$sql_search}
                 order by vi_id desc
@@ -150,12 +150,12 @@ $(function(){
     }
 });
 
-function fvisit_submit(f) 
+function fvisit_submit(f)
 {
     return true;
 }
 </script>
 
-<?php 
+<?php
 include_once('./admin.tail.php');
 ?>
diff --git a/head.sub.php b/head.sub.php
index f0dbbb49b..b1988fe05 100644
--- a/head.sub.php
+++ b/head.sub.php
@@ -83,7 +83,7 @@ if ($is_admin) {
 if(G5_IS_MOBILE) {
     echo '<script src="'.G5_JS_URL.'/modernizr.custom.70111.js"></script>'.PHP_EOL; // overflow scroll 감지
 }
-//if(!defined('G5_IS_ADMIN'))
+if(!defined('G5_IS_ADMIN'))
     echo $config['cf_add_script'];
 ?>
 </head>
diff --git a/install/install_db.php b/install/install_db.php
index dd2c7b440..ebe20ad52 100644
--- a/install/install_db.php
+++ b/install/install_db.php
@@ -151,6 +151,13 @@ $sql = " insert into `{$table_prefix}config`
                 ";
 mysql_query($sql) or die(mysql_error() . "<p>" . $sql);
 
+// 1:1문의 설정
+$sql = " insert into `{$table_prefix}qa_config`
+            ( qa_title, qa_category, qa_skin, qa_mobile_skin, qa_use_email, qa_req_email, qa_use_hp, qa_req_hp, qa_use_editor, qa_subject_len, qa_mobile_subject_len, qa_page_rows, qa_mobile_page_rows, qa_image_width, qa_upload_size, qa_insert_content )
+          values
+            ( '1:1문의', '회원|포인트', 'basic', 'basic', '1', '0', '1', '0', '1', '60', '30', '15', '15', '600', '1048576', '' ) ";
+mysql_query($sql);
+
 // 관리자 회원가입
 $sql = " insert into `{$table_prefix}member`
             set mb_id = '$admin_id',
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 9d9299335..fdb650f59 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -2426,4 +2426,65 @@ if (!function_exists("get_sock")) {
         return $buffer;
     }
 }
+
+// 인증, 결제 모듈 실행 체크
+function module_exec_check($exe, $type)
+{
+    $error = '';
+    $is_linux = false;
+    if(strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN')
+        $is_linux = true;
+
+    // 모듈 파일 존재하는지 체크
+    if(!is_file($exe)) {
+        $error = $exe.' 파일이 존재하지 않습니다.';
+    } else {
+        // 실행권한 체크
+        if(!is_executable($exe)) {
+            if($is_linux)
+                $error = $exe.'\n파일의 실행권한이 없습니다.\n\nchmod 755 '.basename($exe).' 과 같이 실행권한을 부여해 주십시오.';
+            else
+                $error = $exe.'\n파일의 실행권한이 없습니다.\n\n'.basename($exe).' 파일에 실행권한을 부여해 주십시오.';
+        } else {
+            // 바이너리 파일인지
+            if($is_linux) {
+                $search = false;
+                exec('whoami', $out);
+                if(empty($out)) {
+                    $error = 'exec 함수의 실행권한이 없습니다. 서버관리자에게 문의해 주십시오.';
+                } else {
+                    switch($type) {
+                        case 'ct_cli':
+                            exec($exe.' -h 2>&1', $out);
+                            for($i=0; $i<count($out); $i++) {
+                                if(strpos(strtoupper($out[$i]), 'KCP ENC') !== false) {
+                                    $search = true;
+                                    break;
+                                }
+                            }
+                            break;
+                        case 'okname':
+                            exec($exe.' D 2>&1', $out);
+                            for($i=0; $i<count($out); $i++) {
+                                if(strpos(strtolower($out[$i]), 'ret code') !== false) {
+                                    $search = true;
+                                    break;
+                                }
+                            }
+                            break;
+                    }
+
+                    if(!$search)
+                        $error = $exe.'\n파일을 바이너리 타입으로 다시 업로드하여 주십시오.';
+                }
+            }
+        }
+    }
+
+    if($error) {
+        $error = '<script>alert("'.$error.'");</script>';
+    }
+
+    return $error;
+}
 ?>
\ No newline at end of file
diff --git a/plugin/jquery-ui/datepicker.php b/plugin/jquery-ui/datepicker.php
index 21d9bd776..7c962864c 100644
--- a/plugin/jquery-ui/datepicker.php
+++ b/plugin/jquery-ui/datepicker.php
@@ -1,37 +1,34 @@
 <?php
 if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
+?>
 
-// 환경설정 변수 추가 스크립트, css 에 jquery ui 의 datepicker 코드를 더한다.
-$config['cf_add_script'] .= <<<EOT
 <link type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/base/jquery-ui.css" rel="stylesheet" />
 <style>
 .ui-datepicker { font:12px dotum; }
-.ui-datepicker select.ui-datepicker-month, 
+.ui-datepicker select.ui-datepicker-month,
 .ui-datepicker select.ui-datepicker-year { width: 70px;}
 .ui-datepicker-trigger { margin:0 0 -5px 2px; }
 </style>
 <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/jquery-ui.min.js"></script>
 <script>
 jQuery(function($){
-    $.datepicker.regional["ko"] = { 
-        closeText: "닫기", 
-        prevText: "이전달", 
-        nextText: "다음달", 
-        currentText: "오늘", 
-        monthNames: ["1월(JAN)","2월(FEB)","3월(MAR)","4월(APR)","5월(MAY)","6월(JUN)", "7월(JUL)","8월(AUG)","9월(SEP)","10월(OCT)","11월(NOV)","12월(DEC)"], 
-        monthNamesShort: ["1월","2월","3월","4월","5월","6월", "7월","8월","9월","10월","11월","12월"], 
-        dayNames: ["일","월","화","수","목","금","토"], 
-        dayNamesShort: ["일","월","화","수","목","금","토"], 
-        dayNamesMin: ["일","월","화","수","목","금","토"], 
-        weekHeader: "Wk", 
-        dateFormat: "yymmdd", 
-        firstDay: 0, 
-        isRTL: false, 
-        showMonthAfterYear: true, 
+    $.datepicker.regional["ko"] = {
+        closeText: "닫기",
+        prevText: "이전달",
+        nextText: "다음달",
+        currentText: "오늘",
+        monthNames: ["1월(JAN)","2월(FEB)","3월(MAR)","4월(APR)","5월(MAY)","6월(JUN)", "7월(JUL)","8월(AUG)","9월(SEP)","10월(OCT)","11월(NOV)","12월(DEC)"],
+        monthNamesShort: ["1월","2월","3월","4월","5월","6월", "7월","8월","9월","10월","11월","12월"],
+        dayNames: ["일","월","화","수","목","금","토"],
+        dayNamesShort: ["일","월","화","수","목","금","토"],
+        dayNamesMin: ["일","월","화","수","목","금","토"],
+        weekHeader: "Wk",
+        dateFormat: "yymmdd",
+        firstDay: 0,
+        isRTL: false,
+        showMonthAfterYear: true,
         yearSuffix: ""
     };
 	$.datepicker.setDefaults($.datepicker.regional["ko"]);
 });
-</script>
-EOT;
-?>
\ No newline at end of file
+</script>
\ No newline at end of file
diff --git a/plugin/okname/hpcert1.php b/plugin/okname/hpcert1.php
index 684226671..e4bdbaff3 100644
--- a/plugin/okname/hpcert1.php
+++ b/plugin/okname/hpcert1.php
@@ -16,6 +16,18 @@ $cmd = "$exe $svcTxSeqno \"$name\" $birthday $gender $ntvFrnrTpCd $mblTelCmmCd $
 //cmd 실행
 exec($cmd, $out, $ret);
 
+if($ret == 127) {
+    alert_close('모듈실행 파일이 존재하지 않습니다.\\n\\n'.basename($exe).' 파일이 '.G5_PLUGIN_DIR.'/'.G5_OKNAME_DIR.'/bin 안에 있어야 합니다.');
+}
+
+if($ret == 126) {
+    alert_close('모듈실행 파일의 실행권한이 없습니다.\\n\\nchmod 755 '.basename($exe).' 과 같이 실행권한을 부여해 주십시오.');
+}
+
+if($ret == -1) {
+    alert_close('모듈실행 파일의 실행권한이 없습니다.\\n\\ncmd.exe의 IUSER 실행권한이 있는지 확인하여 주십시오.');
+}
+
 /**************************************************************************
 okname 응답 정보
 **************************************************************************/