diff --git a/adm/admin.lib.php b/adm/admin.lib.php
index 6d2b44aaf..4751e389b 100644
--- a/adm/admin.lib.php
+++ b/adm/admin.lib.php
@@ -436,7 +436,7 @@ else if ($is_admin != 'super')
 }
 
 // 관리자의 아이피, 브라우저와 다르다면 세션을 끊고 관리자에게 메일을 보낸다.
-$admin_key = md5($member['mb_datetime'] . $_SERVER['REMOTE_ADDR'] . $_SERVER['HTTP_USER_AGENT']);
+$admin_key = md5($member['mb_datetime'] . get_real_client_ip() . $_SERVER['HTTP_USER_AGENT']);
 if (get_session('ss_mb_key') !== $admin_key) {
 
     session_destroy();
diff --git a/adm/board_form.php b/adm/board_form.php
index bd7d7bd3c..d32c8f287 100644
--- a/adm/board_form.php
+++ b/adm/board_form.php
@@ -1245,7 +1245,7 @@ $pg_anchor = '<ul class="anchor">
 <div class="btn_fixed_top">
     <?php if( $bo_table && $w ){ ?>
         <a href="./board_copy.php?bo_table=<?php echo $board['bo_table']; ?>" id="board_copy" target="win_board_copy" class=" btn_02 btn">게시판복사</a>
-        <a href="<?php echo G5_BBS_URL ?>/board.php?bo_table=<?php echo $board['bo_table']; ?>'" class=" btn_02 btn">게시판 바로가기</a>
+        <a href="<?php echo G5_BBS_URL ?>/board.php?bo_table=<?php echo $board['bo_table']; ?>" class=" btn_02 btn">게시판 바로가기</a>
         <a href="./board_thumbnail_delete.php?bo_table=<?php echo $board['bo_table'].'&amp;'.$qstr;?>" onclick="return delete_confirm2('게시판 썸네일 파일을 삭제하시겠습니까?');" class="btn_02 btn">게시판 썸네일 삭제</a>
     <?php } ?>
     <input type="submit" value="확인" class="btn_submi btn btn_01" accesskey="s">
diff --git a/bbs/login_check.php b/bbs/login_check.php
index 2b2bbe2da..9b1a8c42a 100644
--- a/bbs/login_check.php
+++ b/bbs/login_check.php
@@ -56,7 +56,7 @@ if ( is_use_email_certify() && !preg_match("/[1-9]/", $mb['mb_email_certify']))
 // 회원아이디 세션 생성
 set_session('ss_mb_id', $mb['mb_id']);
 // FLASH XSS 공격에 대응하기 위하여 회원의 고유키를 생성해 놓는다. 관리자에서 검사함 - 110106
-set_session('ss_mb_key', md5($mb['mb_datetime'] . $_SERVER['REMOTE_ADDR'] . $_SERVER['HTTP_USER_AGENT']));
+set_session('ss_mb_key', md5($mb['mb_datetime'] . get_real_client_ip() . $_SERVER['HTTP_USER_AGENT']));
 
 // 포인트 체크
 if($config['cf_use_point']) {
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 130610e81..2b5f4ad8c 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -3418,6 +3418,14 @@ function is_use_email_certify(){
     return $config['cf_use_email_certify'];
 }
 
+function get_real_client_ip(){
+
+    if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
+        return $_SERVER['HTTP_X_FORWARDED_FOR'];
+
+    return $_SERVER['REMOTE_ADDR'];
+}
+
 function get_call_func_cache($func, $args=array()){
     
     static $cache = array();