diff --git a/include/global/DataStore.hpp b/include/global/DataStore.hpp
index 3af8f6c..f34d1f4 100644
--- a/include/global/DataStore.hpp
+++ b/include/global/DataStore.hpp
@@ -103,6 +103,7 @@ namespace Configs {
         int speed_test_timeout_ms = 5000;
         QString simple_dl_url = "http://cachefly.cachefly.net/1mb.test";
         bool allow_beta_update = false;
+        bool show_system_dns = false;
 
         // Network
         bool net_use_proxy = false;
diff --git a/include/ui/setting/dialog_basic_settings.h b/include/ui/setting/dialog_basic_settings.h
index b4bdee6..b772007 100644
--- a/include/ui/setting/dialog_basic_settings.h
+++ b/include/ui/setting/dialog_basic_settings.h
@@ -28,6 +28,7 @@ private:
         QString custom_inbound;
         bool needRestart = false;
         bool updateDisableTray = false;
+        bool updateSystemDns = false;
     } CACHE;
 
 private slots:
diff --git a/include/ui/setting/dialog_basic_settings.ui b/include/ui/setting/dialog_basic_settings.ui
index a081b57..5932ad2 100644
--- a/include/ui/setting/dialog_basic_settings.ui
+++ b/include/ui/setting/dialog_basic_settings.ui
@@ -360,7 +360,7 @@
         <layout class="QHBoxLayout" name="style_h_3">
          <item>
           <widget class="QGroupBox" name="horizontalGroupBox_5">
-           <layout class="QHBoxLayout" name="horizontalLayout_6">
+           <layout class="QVBoxLayout" name="verticalLayout_5">
             <item>
              <widget class="QCheckBox" name="start_minimal">
               <property name="sizePolicy">
@@ -374,6 +374,13 @@
               </property>
              </widget>
             </item>
+            <item>
+             <widget class="QCheckBox" name="show_sys_dns">
+              <property name="text">
+               <string>Show System DNS option</string>
+              </property>
+             </widget>
+            </item>
            </layout>
           </widget>
          </item>
diff --git a/src/global/Configs.cpp b/src/global/Configs.cpp
index b54f650..9e3b721 100644
--- a/src/global/Configs.cpp
+++ b/src/global/Configs.cpp
@@ -320,6 +320,7 @@ namespace Configs {
         _add(new configItem("adblock_enable", &adblock_enable, itemType::boolean));
         _add(new configItem("speed_test_timeout_ms", &speed_test_timeout_ms, itemType::integer));
         _add(new configItem("url_test_timeout_ms", &url_test_timeout_ms, itemType::integer));
+        _add(new configItem("show_system_dns", &show_system_dns, itemType::boolean));
     }
 
     void DataStore::UpdateStartedId(int id) {
diff --git a/src/ui/mainwindow.cpp b/src/ui/mainwindow.cpp
index 0717fb0..8ae9cb3 100644
--- a/src/ui/mainwindow.cpp
+++ b/src/ui/mainwindow.cpp
@@ -419,10 +419,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
             refresh_status();
         }
     });
-    // only windows is supported for now
-#ifndef Q_OS_WIN
-    ui->system_dns->hide();
-#endif
+    if (Configs::dataStore->show_system_dns) ui->system_dns->show();
+    else ui->system_dns->hide();
 
     connect(ui->menu_server, &QMenu::aboutToShow, this, [=,this](){
         if (running)
@@ -770,6 +768,11 @@ void MainWindow::dialog_message_impl(const QString &sender, const QString &info)
         if (info.contains("UpdateDisableTray")) {
             tray->setVisible(!Configs::dataStore->disable_tray);
         }
+        if (info.contains("UpdateSystemDns"))
+        {
+            if (Configs::dataStore->show_system_dns) ui->system_dns->show();
+            else ui->system_dns->hide();
+        }
         if (info.contains("NeedChoosePort"))
         {
             Configs::dataStore->inbound_socks_port = MkPort();
diff --git a/src/ui/setting/dialog_basic_settings.cpp b/src/ui/setting/dialog_basic_settings.cpp
index d99087b..2fce444 100644
--- a/src/ui/setting/dialog_basic_settings.cpp
+++ b/src/ui/setting/dialog_basic_settings.cpp
@@ -16,6 +16,8 @@
 #include <QTimer>
 #include <qfontdatabase.h>
 
+#include "include/ui/mainwindow.h"
+
 DialogBasicSettings::DialogBasicSettings(QWidget *parent)
     : QDialog(parent), ui(new Ui::DialogBasicSettings) {
     ui->setupUi(this);
@@ -67,6 +69,14 @@ DialogBasicSettings::DialogBasicSettings(QWidget *parent)
 
     // Style
     ui->connection_statistics->setChecked(Configs::dataStore->enable_stats);
+    ui->show_sys_dns->setChecked(Configs::dataStore->show_system_dns);
+    connect(ui->show_sys_dns, &QCheckBox::stateChanged, this, [=]
+    {
+        CACHE.updateSystemDns = true;
+    });
+#ifndef Q_OS_WIN
+    ui->show_sys_dns->hide();
+#endif
     //
     D_LOAD_BOOL(start_minimal)
     D_LOAD_INT(max_log_line)
@@ -197,6 +207,7 @@ void DialogBasicSettings::accept() {
     Configs::dataStore->language = ui->language->currentIndex();
     D_SAVE_BOOL(start_minimal)
     D_SAVE_INT(max_log_line)
+    Configs::dataStore->show_system_dns = ui->show_sys_dns->isChecked();
 
     if (Configs::dataStore->max_log_line <= 0) {
         Configs::dataStore->max_log_line = 200;
@@ -243,6 +254,7 @@ void DialogBasicSettings::accept() {
     QStringList str{"UpdateDataStore"};
     if (CACHE.needRestart) str << "NeedRestart";
     if (CACHE.updateDisableTray) str << "UpdateDisableTray";
+    if (CACHE.updateSystemDns) str << "UpdateSystemDns";
     if (needChoosePort) str << "NeedChoosePort";
     MW_dialog_message(Dialog_DialogBasicSettings, str.join(","));
     QDialog::accept();