diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ac1f40..b8715f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,7 @@ add_executable(${PROJECT_NAME} WIN32
         zjuconnectcontroller/zjuconnectcontroller.cpp
         portforwardingwindow/portforwardingwindow.cpp
         settingwindow/settingwindow.cpp
+        loginwindow/loginwindow.cpp
         utils/utils.cpp
         resource.qrc
         ${CMAKE_CURRENT_SOURCE_DIR}/resource/icon.rc
diff --git a/loginwindow/loginwindow.cpp b/loginwindow/loginwindow.cpp
new file mode 100644
index 0000000..3f7c2a6
--- /dev/null
+++ b/loginwindow/loginwindow.cpp
@@ -0,0 +1,42 @@
+#include "loginwindow.h"
+
+#include <QMessageBox>
+
+LoginWindow::LoginWindow(QWidget *parent)
+	: QDialog(parent),
+	ui(new Ui::LoginWindow)
+{
+	ui->setupUi(this);
+
+	setWindowModality(Qt::WindowModal);
+	setAttribute(Qt::WA_DeleteOnClose);
+
+	connect(ui->buttonBox, &QDialogButtonBox::accepted,
+		[&]()
+		{
+			if (ui->usernameLineEdit->text().isEmpty())
+			{
+				QMessageBox::warning(this, "警告", "账号不应为空！");
+				return;
+			}
+			else if (ui->passwordLineEdit->text().isEmpty())
+			{
+				QMessageBox::warning(this, "警告", "密码不应为空！");
+				return;
+			}
+			emit login(ui->usernameLineEdit->text(), ui->passwordLineEdit->text(), ui->saveLoginDetailCheckBox->isChecked());
+			emit accept();
+		}
+	);
+}
+
+LoginWindow::~LoginWindow()
+{
+	delete ui;
+}
+
+void LoginWindow::setDetail(const QString& username, const QString& password)
+{
+	ui->usernameLineEdit->setText(username);
+	ui->passwordLineEdit->setText(password);
+}
diff --git a/loginwindow/loginwindow.h b/loginwindow/loginwindow.h
new file mode 100644
index 0000000..1e96ab6
--- /dev/null
+++ b/loginwindow/loginwindow.h
@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QDialog>
+#include "ui_loginwindow.h"
+
+class LoginWindow : public QDialog
+{
+	Q_OBJECT
+
+public:
+	LoginWindow(QWidget *parent = nullptr);
+
+	~LoginWindow() override;
+
+	void setDetail(const QString& username, const QString& password);
+
+signals:
+	void login(const QString& username, const QString& password, bool saveDetail);
+
+private:
+	Ui::LoginWindow *ui;
+};
diff --git a/loginwindow/loginwindow.ui b/loginwindow/loginwindow.ui
new file mode 100644
index 0000000..e6c78fe
--- /dev/null
+++ b/loginwindow/loginwindow.ui
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>LoginWindow</class>
+ <widget class="QDialog" name="LoginWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>385</width>
+    <height>155</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>登录</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>登录</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <item row="2" column="1">
+       <widget class="QLineEdit" name="passwordLineEdit">
+        <property name="echoMode">
+         <enum>QLineEdit::Password</enum>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label1">
+        <property name="text">
+         <string>账号</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="label2">
+        <property name="text">
+         <string>密码</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="usernameLineEdit"/>
+      </item>
+      <item row="3" column="1">
+       <widget class="QCheckBox" name="saveLoginDetailCheckBox">
+        <property name="text">
+         <string>记住登录信息（可在设置中删除）</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <tabstops>
+  <tabstop>usernameLineEdit</tabstop>
+  <tabstop>passwordLineEdit</tabstop>
+  <tabstop>saveLoginDetailCheckBox</tabstop>
+ </tabstops>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>LoginWindow</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/main.cpp b/main.cpp
index ef97946..54c5b71 100644
--- a/main.cpp
+++ b/main.cpp
@@ -9,7 +9,7 @@ int main(int argc, char *argv[])
     SingleApplication app(argc, argv);
     QApplication::setApplicationName("HITsz Connect for Windows");
     QApplication::setApplicationDisplayName("HITsz Connect for Windows");
-    QApplication::setApplicationVersion("1.1.6");
+    QApplication::setApplicationVersion("1.2.0");
 
     // 愚人节彩蛋
     QDate currentDate = QDate::currentDate();
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 18c4e75..a374b2e 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -35,15 +35,9 @@ MainWindow::MainWindow(QWidget *parent) :
     upgradeSettings();
 
     isFirstTimeSetMode = true;
-    isL2tpLinked = false;
-    isL2tpReconnecting = false;
-    isWebLogged = false;
     isZjuConnectLinked = false;
-    isZjuConnectLoginError = false;
-    isZjuConnectAccessDenied = false;
-    isZjuConnectListenFailed = false;
-    isZjuConnectSetupError = false;
     isSystemProxySet = false;
+    zjuConnectError = ZJU_ERROR::NONE;
 
     ui->setupUi(this);
 
@@ -325,8 +319,6 @@ void MainWindow::cleanUpWhenQuit()
     if (settings->value("Common/ConfigVersion", "1").toInt() <= 2)
     {
         settings->setValue("Common/ConfigVersion", 2);
-        settings->setValue("Common/LastMode", mode);
-        settings->setValue("ZJUConnect/TunMode", ui->tunCheckBox->isChecked());
         settings->sync();
     }
 
diff --git a/mainwindow.h b/mainwindow.h
index 56aee0c..b1172ff 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -8,6 +8,7 @@
 #include <QNetworkReply>
 #include <QSettings>
 
+#include "loginwindow/loginwindow.h"
 #include "portforwardingwindow/portforwardingwindow.h"
 #include "zjuconnectcontroller/zjuconnectcontroller.h"
 #include "settingwindow/settingwindow.h"
@@ -75,22 +76,13 @@ private:
     QObject *diagnosisContext;
 
     SettingWindow *settingWindow;
-
-    QString mode;
+    LoginWindow *login_window;
 
     bool isFirstTimeSetMode;
 
-    bool isL2tpLinked;
-    bool isL2tpReconnecting;
-
-    bool isWebLogged;
-
     bool isZjuConnectLinked;
-    bool isZjuConnectLoginError;
-    bool isZjuConnectAccessDenied;
-    bool isZjuConnectListenFailed;
-    bool isZjuConnectSetupError;
     bool isSystemProxySet;
+    ZJU_ERROR zjuConnectError;
 };
 
 #endif //MAINWINDOW_H
diff --git a/mainwindow.ui b/mainwindow.ui
index 049730a..c21aa77 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>731</width>
-    <height>266</height>
+    <width>717</width>
+    <height>298</height>
    </rect>
   </property>
   <widget class="QWidget" name="centralWidget">
@@ -36,22 +36,6 @@
       </property>
      </widget>
     </item>
-    <item row="7" column="1">
-     <widget class="QCheckBox" name="tunCheckBox">
-      <property name="sizePolicy">
-       <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
-        <horstretch>0</horstretch>
-        <verstretch>0</verstretch>
-       </sizepolicy>
-      </property>
-      <property name="toolTip">
-       <string>启用 TUN 模式需要以管理员权限运行程序</string>
-      </property>
-      <property name="text">
-       <string>TUN 模式</string>
-      </property>
-     </widget>
-    </item>
     <item row="8" column="2">
      <spacer name="horizontalSpacer">
       <property name="orientation">
@@ -136,11 +120,10 @@ Line 2
     <item row="2" column="1" colspan="3">
      <widget class="QLabel" name="accountLabel">
       <property name="text">
-       <string>提示：左上角“功能”→“设置”里可以填写账号信息。
-可以使用 TUN 模式解决部分软件无法代理的问题。
-建议关闭 Clash 等代理后开启系统代理。
+       <string>提示：
+左上角“功能”-&gt;“设置”里有更多可调整项目。
+建议关闭 Clash 等代理软件后开启系统代理。
 
-一般而言，设置系统代理↘后即可使用。
 使用中遇到任何问题欢迎加入 HITSZ OSA 进行反馈。</string>
       </property>
      </widget>
@@ -152,7 +135,7 @@ Line 2
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>731</width>
+     <width>717</width>
      <height>22</height>
     </rect>
    </property>
@@ -221,7 +204,6 @@ Line 2
  <tabstops>
   <tabstop>pushButton1</tabstop>
   <tabstop>pushButton2</tabstop>
-  <tabstop>tunCheckBox</tabstop>
   <tabstop>copyLogPushButton</tabstop>
   <tabstop>logPlainTextEdit</tabstop>
  </tabstops>
diff --git a/portforwardingwindow/portforwardingwindow.cpp b/portforwardingwindow/portforwardingwindow.cpp
index dc99152..ae2fdb5 100644
--- a/portforwardingwindow/portforwardingwindow.cpp
+++ b/portforwardingwindow/portforwardingwindow.cpp
@@ -1,8 +1,8 @@
 #include "portforwardingwindow.h"
 #include "ui_portforwardingwindow.h"
 
-PortForwardingWindow::PortForwardingWindow(QWidget *parent) :
-    QWidget(parent),
+PortForwardingWindow::PortForwardingWindow(QDialog *parent) :
+    QDialog(parent),
     ui(new Ui::PortForwardingWindow)
 {
     ui->setupUi(this);
@@ -11,11 +11,10 @@ PortForwardingWindow::PortForwardingWindow(QWidget *parent) :
         512, 512, Qt::KeepAspectRatio, Qt::SmoothTransformation
     )));
 
-    setWindowFlag(Qt::Window);
     setWindowModality(Qt::WindowModal);
     setAttribute(Qt::WA_DeleteOnClose);
 
-    connect(ui->applyPushButton, &QPushButton::clicked,
+    connect(ui->buttonBox, &QDialogButtonBox::accepted,
             [&]()
             {
                 QStringList tcpPortForwardingList;
@@ -45,9 +44,8 @@ PortForwardingWindow::PortForwardingWindow(QWidget *parent) :
                 }
 
                 emit applied(tcpPortForwardingList.join(","), udpPortForwardingList.join(","));
-
-                close();
             });
+
 }
 
 PortForwardingWindow::~PortForwardingWindow()
diff --git a/portforwardingwindow/portforwardingwindow.h b/portforwardingwindow/portforwardingwindow.h
index 16de19d..15cb9ec 100644
--- a/portforwardingwindow/portforwardingwindow.h
+++ b/portforwardingwindow/portforwardingwindow.h
@@ -1,7 +1,7 @@
 #ifndef PORTFORWARDINGWINDOW_H
 #define PORTFORWARDINGWINDOW_H
 
-#include <QWidget>
+#include <QDialog>
 #include "ui_portforwardingwindow.h"
 
 namespace Ui
@@ -9,12 +9,12 @@ namespace Ui
     class PortForwardingWindow;
 }
 
-class PortForwardingWindow : public QWidget
+class PortForwardingWindow : public QDialog
 {
 Q_OBJECT
 
 public:
-    explicit PortForwardingWindow(QWidget *parent = nullptr);
+    explicit PortForwardingWindow(QDialog *parent = nullptr);
 
     ~PortForwardingWindow() override;
 
diff --git a/portforwardingwindow/portforwardingwindow.ui b/portforwardingwindow/portforwardingwindow.ui
index 44eef90..095f4f8 100644
--- a/portforwardingwindow/portforwardingwindow.ui
+++ b/portforwardingwindow/portforwardingwindow.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>PortForwardingWindow</class>
- <widget class="QWidget" name="PortForwardingWindow">
+ <widget class="QDialog" name="PortForwardingWindow">
   <property name="geometry">
    <rect>
     <x>0</x>
@@ -17,13 +17,6 @@
    <string notr="true"/>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-   <item row="2" column="1">
-    <widget class="QPushButton" name="applyPushButton">
-     <property name="text">
-      <string>确定</string>
-     </property>
-    </widget>
-   </item>
    <item row="1" column="0" colspan="3">
     <widget class="QTextEdit" name="textEdit">
      <property name="html">
@@ -38,19 +31,6 @@ li.checked::marker { content: &quot;\2612&quot;; }
      </property>
     </widget>
    </item>
-   <item row="2" column="0">
-    <spacer name="horizontalSpacer">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="sizeHint" stdset="0">
-      <size>
-       <width>213</width>
-       <height>20</height>
-      </size>
-     </property>
-    </spacer>
-   </item>
    <item row="0" column="0" colspan="3">
     <widget class="QLabel" name="label">
      <property name="text">
@@ -64,8 +44,48 @@ li.checked::marker { content: &quot;\2612&quot;; }
      </property>
     </widget>
    </item>
+   <item row="2" column="0" colspan="3">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>
- <connections/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>PortForwardingWindow</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>244</x>
+     <y>295</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>244</x>
+     <y>158</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>PortForwardingWindow</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>244</x>
+     <y>295</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>244</x>
+     <y>158</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
 </ui>
diff --git a/settingwindow/settingwindow.cpp b/settingwindow/settingwindow.cpp
index 2f30870..9e6df3d 100644
--- a/settingwindow/settingwindow.cpp
+++ b/settingwindow/settingwindow.cpp
@@ -7,19 +7,117 @@
 #include "ui_settingwindow.h"
 
 SettingWindow::SettingWindow(QWidget *parent, QSettings *inputSettings) :
-    QWidget(parent),
+    QDialog(parent),
     ui(new Ui::SettingWindow)
 {
     ui->setupUi(this);
 
     this->settings = inputSettings;
 
-    setWindowFlag(Qt::Window);
     setWindowModality(Qt::WindowModal);
     setAttribute(Qt::WA_DeleteOnClose);
 
-    ui->passwordLineEdit->setEchoMode(QLineEdit::Password);
+    loadSettings();
 
+    connect(ui->portForwardingPushButton, &QPushButton::clicked,
+            [&]()
+            {
+                portForwardingWindow = new PortForwardingWindow(this);
+                portForwardingWindow->setPortForwarding(tcpPortForwarding, udpPortForwarding);
+
+                connect(portForwardingWindow, &PortForwardingWindow::applied, this,
+                        [&](const QString &tcpForwarding, const QString &udpForwarding)
+                        {
+                            tcpPortForwarding = tcpForwarding;
+                            udpPortForwarding = udpForwarding;
+                        });
+
+                portForwardingWindow->show();
+            });
+
+    auto applySettings = [&]()
+        {
+            settings->setValue("Common/Username", ui->usernameLineEdit->text());
+            settings->setValue("Common/Password", QString(ui->passwordLineEdit->text().toUtf8().toBase64()));
+            settings->setValue("Common/AutoStart", ui->autoStartComboBox->currentText() == "是");
+            settings->setValue("Common/ConnectAfterStart", ui->connectAfterStartComboBox->currentText() == "是");
+            settings->setValue("Common/checkUpdateAfterStart", ui->checkUpdateAfterStartComboBox->currentText() == "是");
+
+            settings->setValue("ZJUConnect/ServerAddress", ui->serverAddressLineEdit->text());
+            settings->setValue("ZJUConnect/ServerPort", ui->serverPortSpinBox->value());
+            settings->setValue("ZJUConnect/DNS", ui->dnsLineEdit->text());
+            settings->setValue("ZJUConnect/Socks5Port", ui->socks5PortSpinBox->value());
+            settings->setValue("ZJUConnect/HttpPort", ui->httpPortSpinBox->value());
+            settings->setValue("ZJUConnect/MultiLine", ui->multiLineCheckBox->isChecked());
+            settings->setValue("ZJUConnect/ProxyAll", ui->proxyAllCheckBox->isChecked());
+            settings->setValue("ZJUConnect/Debug", ui->debugCheckBox->isChecked());
+            settings->setValue("ZJUConnect/TcpPortForwarding", tcpPortForwarding);
+            settings->setValue("ZJUConnect/UdpPortForwarding", udpPortForwarding);
+            settings->setValue("ZJUConnect/AutoReconnect", ui->autoReconnectCheckBox->isChecked());
+            settings->setValue("ZJUConnect/ReconnectTime", ui->reconnectTimeSpinBox->value());
+            settings->setValue("ZJUConnect/AutoSetProxy", ui->autoSetProxyCheckBox->isChecked());
+            settings->setValue("ZJUConnect/Route", ui->routeCheckBox->isChecked());
+            settings->setValue("ZJUConnect/SecondaryDNS", ui->secondaryDnsLineEdit->text());
+            settings->setValue("ZJUConnect/ShadowsocksUrl", ui->shadowsocksUrlLineEdit->text());
+            settings->setValue("ZJUConnect/KeepAlive", ui->keepAliveCheckBox->isChecked());
+            settings->setValue("ZJUConnect/TunMode", ui->tunCheckBox->isChecked());
+            settings->setValue("ZJUConnect/DNSHijack", ui->dnsHijackCheckBox->isChecked());
+            settings->setValue("ZJUConnect/OutsideAccess", ui->outsideAccessCheckBox->isChecked());
+
+            settings->sync();
+
+            if (settings->value("Common/AutoStart").toBool())
+            {
+                QSettings autoStartSettings(
+                    R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)",
+                    QSettings::NativeFormat
+                );
+                autoStartSettings.setValue(
+                    QApplication::applicationName(),
+                    QCoreApplication::applicationFilePath().replace('/', '\\')
+                );
+            }
+            else
+            {
+                QSettings autoStartSettings(
+                    R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)",
+                    QSettings::NativeFormat
+                );
+                autoStartSettings.remove(QApplication::applicationName());
+            }
+        };
+
+    connect(ui->buttonBox, &QDialogButtonBox::accepted, applySettings);
+
+    connect(ui->buttonBox->button(QDialogButtonBox::Apply), &QPushButton::clicked, applySettings);
+
+    connect(ui->buttonBox->button(QDialogButtonBox::RestoreDefaults), &QPushButton::clicked,
+        [&]()
+        {
+            int status = QMessageBox::warning(this, "警告", "将会重置所有设置，是否继续？", QMessageBox::Ok, QMessageBox::Cancel);
+            if (status == QMessageBox::Ok)
+            {
+                settings->clear();
+                settings->sync();
+                loadSettings();
+            }
+        });
+
+    connect(ui->tunCheckBox, &QCheckBox::toggled,
+        [&](bool checked)
+        {
+            ui->routeCheckBox->setEnabled(checked);
+            ui->dnsHijackCheckBox->setEnabled(checked);
+        });
+}
+
+SettingWindow::~SettingWindow()
+{
+    delete ui;
+}
+
+void SettingWindow::loadSettings()
+{
     ui->usernameLineEdit->setText(settings->value("Common/Username", "").toString());
     ui->passwordLineEdit->setText(
         QByteArray::fromBase64(settings->value("Common/Password", "").toString().toUtf8())
@@ -64,79 +162,15 @@ SettingWindow::SettingWindow(QWidget *parent, QSettings *inputSettings) :
     udpPortForwarding = settings->value("ZJUConnect/UdpPortForwarding", "").toString();
     ui->autoReconnectCheckBox->setChecked(settings->value("ZJUConnect/AutoReconnect", false).toBool());
     ui->reconnectTimeSpinBox->setValue(settings->value("ZJUConnect/ReconnectTime", 1).toInt());
-    ui->autoSetProxyCheckBox->setChecked(settings->value("ZJUConnect/AutoSetProxy", false).toBool());
+    ui->autoSetProxyCheckBox->setChecked(settings->value("ZJUConnect/AutoSetProxy", true).toBool());
     ui->routeCheckBox->setChecked(settings->value("ZJUConnect/Route", false).toBool());
+    ui->secondaryDnsLineEdit->setText(settings->value("ZJUConnect/SecondaryDNS", "").toString());
+    ui->shadowsocksUrlLineEdit->setText(settings->value("ZJUConnect/ShadowsocksUrl", "").toString());
+    ui->keepAliveCheckBox->setChecked(settings->value("ZJUConnect/KeepAlive", true).toBool());
+    ui->tunCheckBox->setChecked(settings->value("ZJUConnect/TunMode", false).toBool());
+    ui->dnsHijackCheckBox->setChecked(settings->value("ZJUConnect/DNSHijack", false).toBool());
+    ui->outsideAccessCheckBox->setChecked(settings->value("ZJUConnect/OutsideAccess", false).toBool());
 
-    connect(ui->portForwardingPushButton, &QPushButton::clicked,
-            [&]()
-            {
-                portForwardingWindow = new PortForwardingWindow(this);
-                portForwardingWindow->setPortForwarding(tcpPortForwarding, udpPortForwarding);
-
-                connect(portForwardingWindow, &PortForwardingWindow::applied, this,
-                        [&](const QString &tcpForwarding, const QString &udpForwarding)
-                        {
-                            tcpPortForwarding = tcpForwarding;
-                            udpPortForwarding = udpForwarding;
-                        });
-
-                portForwardingWindow->show();
-            });
-
-    connect(ui->applyPushButton, &QPushButton::clicked,
-            [&]()
-            {
-
-                settings->setValue("Common/Username", ui->usernameLineEdit->text());
-                settings->setValue("Common/Password", QString(ui->passwordLineEdit->text().toUtf8().toBase64()));
-                settings->setValue("Common/AutoStart", ui->autoStartComboBox->currentText() == "是");
-                settings->setValue("Common/ConnectAfterStart", ui->connectAfterStartComboBox->currentText() == "是");
-                settings->setValue("Common/checkUpdateAfterStart", ui->checkUpdateAfterStartComboBox->currentText() == "是");
-
-                settings->setValue("ZJUConnect/ServerAddress", ui->serverAddressLineEdit->text());
-                settings->setValue("ZJUConnect/ServerPort", ui->serverPortSpinBox->value());
-                settings->setValue("ZJUConnect/DNS", ui->dnsLineEdit->text());
-                settings->setValue("ZJUConnect/Socks5Port", ui->socks5PortSpinBox->value());
-                settings->setValue("ZJUConnect/HttpPort", ui->httpPortSpinBox->value());
-                settings->setValue("ZJUConnect/MultiLine", ui->multiLineCheckBox->isChecked());
-                settings->setValue("ZJUConnect/ProxyAll", ui->proxyAllCheckBox->isChecked());
-                settings->setValue("ZJUConnect/Debug", ui->debugCheckBox->isChecked());
-                settings->setValue("ZJUConnect/TcpPortForwarding", tcpPortForwarding);
-                settings->setValue("ZJUConnect/UdpPortForwarding", udpPortForwarding);
-                settings->setValue("ZJUConnect/AutoReconnect", ui->autoReconnectCheckBox->isChecked());
-                settings->setValue("ZJUConnect/ReconnectTime", ui->reconnectTimeSpinBox->value());
-                settings->setValue("ZJUConnect/AutoSetProxy", ui->autoSetProxyCheckBox->isChecked());
-                settings->setValue("ZJUConnect/Route", ui->routeCheckBox->isChecked());
-
-                settings->sync();
-
-                if (settings->value("Common/AutoStart").toBool())
-                {
-                    QSettings autoStartSettings(
-                        R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)",
-                        QSettings::NativeFormat
-                    );
-                    autoStartSettings.setValue(
-                        QApplication::applicationName(),
-                        QCoreApplication::applicationFilePath().replace('/', '\\')
-                    );
-                }
-                else
-                {
-                    QSettings autoStartSettings(
-                        R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)",
-                        QSettings::NativeFormat
-                    );
-                    autoStartSettings.remove(QApplication::applicationName());
-                }
-
-                close();
-            });
-
-    connect(ui->cancelPushButton, &QPushButton::clicked, [&]()  { close(); });
-}
-
-SettingWindow::~SettingWindow()
-{
-    delete ui;
+    ui->routeCheckBox->setEnabled(ui->tunCheckBox->isChecked());
+    ui->dnsHijackCheckBox->setEnabled(ui->tunCheckBox->isChecked());
 }
diff --git a/settingwindow/settingwindow.h b/settingwindow/settingwindow.h
index eed3b8d..fc9329b 100644
--- a/settingwindow/settingwindow.h
+++ b/settingwindow/settingwindow.h
@@ -1,7 +1,7 @@
 #ifndef SETTINGWINDOW_H
 #define SETTINGWINDOW_H
 
-#include <QWidget>
+#include <QDialog>
 #include <QSettings>
 #include "ui_settingwindow.h"
 #include "../portforwardingwindow/portforwardingwindow.h"
@@ -11,7 +11,7 @@ namespace Ui
     class SettingWindow;
 }
 
-class SettingWindow : public QWidget
+class SettingWindow : public QDialog
 {
 Q_OBJECT
 
@@ -21,6 +21,8 @@ public:
     ~SettingWindow() override;
 
 private:
+    void loadSettings();
+
     Ui::SettingWindow *ui;
 
     QSettings *settings;
diff --git a/settingwindow/settingwindow.ui b/settingwindow/settingwindow.ui
index d279b0f..f82e8ab 100644
--- a/settingwindow/settingwindow.ui
+++ b/settingwindow/settingwindow.ui
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>SettingWindow</class>
- <widget class="QWidget" name="SettingWindow">
+ <widget class="QDialog" name="SettingWindow">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>486</width>
-    <height>348</height>
+    <height>396</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -17,35 +17,11 @@
    <string notr="true"/>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-   <item row="1" column="0">
-    <spacer name="horizontalSpacer">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="sizeHint" stdset="0">
-      <size>
-       <width>213</width>
-       <height>20</height>
-      </size>
-     </property>
-    </spacer>
-   </item>
-   <item row="1" column="1">
-    <widget class="QPushButton" name="applyPushButton">
-     <property name="text">
-      <string>确定</string>
-     </property>
-    </widget>
-   </item>
-   <item row="1" column="2">
-    <widget class="QPushButton" name="cancelPushButton">
-     <property name="text">
-      <string>取消</string>
-     </property>
-    </widget>
-   </item>
-   <item row="0" column="0" colspan="4">
+   <item row="0" column="0" colspan="2">
     <widget class="QTabWidget" name="tabWidget">
+     <property name="locale">
+      <locale language="Chinese" country="China"/>
+     </property>
      <property name="currentIndex">
       <number>0</number>
      </property>
@@ -54,7 +30,113 @@
        <string>通用</string>
       </attribute>
       <layout class="QGridLayout" name="gridLayout_2">
-       <item row="7" column="0" colspan="4">
+       <item row="1" column="0">
+        <widget class="QGroupBox" name="groupBox_2">
+         <property name="title">
+          <string>启动时</string>
+         </property>
+         <layout class="QGridLayout" name="gridLayout_7">
+          <item row="1" column="0">
+           <widget class="QLabel" name="commonTabLable5">
+            <property name="text">
+             <string>启动后自动连接</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="0">
+           <widget class="QLabel" name="commonTabLable4">
+            <property name="text">
+             <string>开机自启动</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="2">
+           <widget class="QComboBox" name="autoStartComboBox">
+            <property name="minimumSize">
+             <size>
+              <width>150</width>
+              <height>0</height>
+             </size>
+            </property>
+            <property name="maxVisibleItems">
+             <number>12</number>
+            </property>
+            <item>
+             <property name="text">
+              <string>否</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>是</string>
+             </property>
+            </item>
+           </widget>
+          </item>
+          <item row="1" column="2">
+           <widget class="QComboBox" name="connectAfterStartComboBox">
+            <property name="minimumSize">
+             <size>
+              <width>150</width>
+              <height>0</height>
+             </size>
+            </property>
+            <item>
+             <property name="text">
+              <string>否</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>是</string>
+             </property>
+            </item>
+           </widget>
+          </item>
+          <item row="0" column="1" rowspan="3">
+           <spacer name="horizontalSpacer_3">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>221</width>
+              <height>72</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item row="2" column="0">
+           <widget class="QLabel" name="commonTabLable6">
+            <property name="text">
+             <string>启动后检查更新</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="2">
+           <widget class="QComboBox" name="checkUpdateAfterStartComboBox">
+            <property name="minimumSize">
+             <size>
+              <width>150</width>
+              <height>0</height>
+             </size>
+            </property>
+            <item>
+             <property name="text">
+              <string>否</string>
+             </property>
+            </item>
+            <item>
+             <property name="text">
+              <string>是</string>
+             </property>
+            </item>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item row="6" column="0" colspan="2">
         <spacer name="commonTabVerticalSpacer">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
@@ -68,123 +150,52 @@
         </spacer>
        </item>
        <item row="0" column="0" colspan="2">
-        <widget class="QLabel" name="commonTabLable2">
-         <property name="text">
-          <string>网络账号</string>
-         </property>
-        </widget>
-       </item>
-       <item row="6" column="0">
-        <widget class="QLabel" name="commonTabLable6">
-         <property name="text">
-          <string>启动后检查更新</string>
-         </property>
-        </widget>
-       </item>
-       <item row="1" column="0" colspan="2">
-        <widget class="QLabel" name="commonTabLable3">
-         <property name="text">
-          <string>网络密码</string>
-         </property>
-        </widget>
-       </item>
-       <item row="5" column="3">
-        <widget class="QComboBox" name="connectAfterStartComboBox">
-         <item>
-          <property name="text">
-           <string>否</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>是</string>
-          </property>
-         </item>
-        </widget>
-       </item>
-       <item row="1" column="3">
-        <widget class="QLineEdit" name="passwordLineEdit">
-        </widget>
-       </item>
-       <item row="0" column="3">
-        <widget class="QLineEdit" name="usernameLineEdit"/>
-       </item>
-       <item row="4" column="3">
-        <widget class="QComboBox" name="autoStartComboBox">
-         <property name="maxVisibleItems">
-          <number>12</number>
-         </property>
-         <item>
-          <property name="text">
-           <string>否</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>是</string>
-          </property>
-         </item>
-        </widget>
-       </item>
-       <item row="6" column="3">
-        <widget class="QComboBox" name="checkUpdateAfterStartComboBox">
-         <item>
-          <property name="text">
-           <string>否</string>
-          </property>
-         </item>
-         <item>
-          <property name="text">
-           <string>是</string>
-          </property>
-         </item>
-        </widget>
-       </item>
-       <item row="4" column="2" rowspan="3">
-        <spacer name="horizontalSpacer_3">
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>170</width>
-           <height>20</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-       <item row="4" column="0" colspan="2">
-        <widget class="QLabel" name="commonTabLable4">
-         <property name="text">
-          <string>开机启动</string>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="2" rowspan="2">
-        <spacer name="horizontalSpacer_2">
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>170</width>
-           <height>20</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-       <item row="5" column="0">
-        <widget class="QLabel" name="commonTabLable5">
-         <property name="text">
-          <string>启动后自动连接</string>
-         </property>
-        </widget>
-       </item>
-       <item row="2" column="0" colspan="4">
-        <widget class="Line" name="commonTabLine1">
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
+        <widget class="QGroupBox" name="groupBox">
+         <property name="title">
+          <string>保存的信息</string>
          </property>
+         <layout class="QGridLayout" name="gridLayout_6">
+          <item row="0" column="2">
+           <widget class="QLineEdit" name="usernameLineEdit"/>
+          </item>
+          <item row="0" column="0">
+           <widget class="QLabel" name="commonTabLable2">
+            <property name="text">
+             <string>账号</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="2">
+           <widget class="QLineEdit" name="passwordLineEdit">
+            <property name="echoMode">
+             <enum>QLineEdit::Password</enum>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="0">
+           <widget class="QLabel" name="commonTabLable3">
+            <property name="text">
+             <string>密码</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1" rowspan="2">
+           <spacer name="horizontalSpacer_2">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeType">
+             <enum>QSizePolicy::Preferred</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>100</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+         </layout>
         </widget>
        </item>
       </layout>
@@ -194,38 +205,140 @@
        <string>高级</string>
       </attribute>
       <layout class="QGridLayout" name="gridLayout_3">
-       <item row="1" column="0">
-        <widget class="QLabel" name="zjuConnectTabLabel2">
+       <item row="6" column="0">
+        <widget class="QLabel" name="zjuConnectTabLabel7">
          <property name="font">
           <font>
            <pointsize>9</pointsize>
           </font>
          </property>
          <property name="text">
-          <string>服务器端口</string>
+          <string>自动重连时间（秒）</string>
          </property>
         </widget>
        </item>
-       <item row="7" column="2">
-        <widget class="QCheckBox" name="debugCheckBox">
-         <property name="text">
-          <string>调试模式</string>
+       <item row="2" column="1" colspan="3">
+        <widget class="QLineEdit" name="secondaryDnsLineEdit">
+         <property name="font">
+          <font>
+           <bold>false</bold>
+          </font>
+         </property>
+         <property name="placeholderText">
+          <string>不填则采用系统 DNS ，使用 DNS 劫持必须填写</string>
          </property>
         </widget>
        </item>
-       <item row="6" column="2">
-        <widget class="QCheckBox" name="autoReconnectCheckBox">
-         <property name="toolTip">
-          <string>断线自动重连</string>
+       <item row="1" column="0">
+        <widget class="QLabel" name="zjuConnectTabLabel8">
+         <property name="font">
+          <font>
+           <bold>false</bold>
+          </font>
          </property>
          <property name="text">
-          <string>自动重连</string>
-         </property>
-         <property name="checked">
-          <bool>false</bool>
+          <string>DNS 服务器</string>
          </property>
         </widget>
        </item>
+       <item row="8" column="0" colspan="4">
+        <widget class="Line" name="line">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="9" column="0" colspan="4">
+        <layout class="QGridLayout" name="gridLayout_4">
+         <item row="1" column="0">
+          <widget class="QCheckBox" name="autoSetProxyCheckBox">
+           <property name="toolTip">
+            <string>连接服务器后自动设置代理</string>
+           </property>
+           <property name="text">
+            <string>自动设置系统代理</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="0">
+          <widget class="QCheckBox" name="multiLineCheckBox">
+           <property name="text">
+            <string>自动选择线路</string>
+           </property>
+           <property name="autoExclusive">
+            <bool>false</bool>
+           </property>
+           <property name="tristate">
+            <bool>false</bool>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QCheckBox" name="proxyAllCheckBox">
+           <property name="text">
+            <string>代理全部流量</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QCheckBox" name="keepAliveCheckBox">
+           <property name="toolTip">
+            <string>连接服务器后自动设置代理</string>
+           </property>
+           <property name="text">
+            <string>定时保活</string>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="2">
+          <widget class="QCheckBox" name="outsideAccessCheckBox">
+           <property name="toolTip">
+            <string>连接服务器后自动设置代理</string>
+           </property>
+           <property name="text">
+            <string>允许外部访问</string>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="2">
+          <widget class="QCheckBox" name="debugCheckBox">
+           <property name="text">
+            <string>核心调试模式</string>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="2">
+          <widget class="QCheckBox" name="dnsHijackCheckBox">
+           <property name="toolTip">
+            <string>TUN 模式下有效</string>
+           </property>
+           <property name="text">
+            <string>DNS 劫持（TUN）</string>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="QCheckBox" name="routeCheckBox">
+           <property name="toolTip">
+            <string>TUN 模式下有效</string>
+           </property>
+           <property name="text">
+            <string>设置路由（TUN）</string>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="0">
+          <widget class="QCheckBox" name="tunCheckBox">
+           <property name="toolTip">
+            <string>TUN 模式下有效</string>
+           </property>
+           <property name="text">
+            <string>TUN 模式</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
        <item row="4" column="0">
         <widget class="QLabel" name="zjuConnectTabLabel6">
          <property name="text">
@@ -233,38 +346,17 @@
          </property>
         </widget>
        </item>
-       <item row="3" column="1" colspan="2">
-        <widget class="QSpinBox" name="socks5PortSpinBox">
-         <property name="font">
-          <font>
-           <pointsize>9</pointsize>
-          </font>
-         </property>
+       <item row="6" column="1" colspan="2">
+        <widget class="QSpinBox" name="reconnectTimeSpinBox">
          <property name="maximum">
-          <number>65535</number>
+          <number>86400</number>
          </property>
          <property name="value">
-          <number>11080</number>
+          <number>1</number>
          </property>
         </widget>
        </item>
-       <item row="6" column="0">
-        <widget class="QCheckBox" name="multiLineCheckBox">
-         <property name="text">
-          <string>自动选择线路</string>
-         </property>
-         <property name="checked">
-          <bool>true</bool>
-         </property>
-         <property name="autoExclusive">
-          <bool>false</bool>
-         </property>
-         <property name="tristate">
-          <bool>false</bool>
-         </property>
-        </widget>
-       </item>
-       <item row="4" column="1" colspan="2">
+       <item row="4" column="1" colspan="3">
         <widget class="QSpinBox" name="httpPortSpinBox">
          <property name="maximum">
           <number>65535</number>
@@ -274,39 +366,19 @@
          </property>
         </widget>
        </item>
-       <item row="7" column="1">
-        <widget class="QCheckBox" name="routeCheckBox">
-         <property name="toolTip">
-          <string>TUN 模式下有效</string>
-         </property>
-         <property name="text">
-          <string>自动设置路由</string>
-         </property>
-        </widget>
-       </item>
-       <item row="7" column="0">
-        <widget class="QCheckBox" name="autoSetProxyCheckBox">
-         <property name="toolTip">
-          <string>连接服务器后自动设置代理</string>
-         </property>
-         <property name="text">
-          <string>自动设置系统代理</string>
-         </property>
-        </widget>
-       </item>
-       <item row="3" column="0">
-        <widget class="QLabel" name="zjuConnectTabLabel5">
+       <item row="1" column="1" colspan="3">
+        <widget class="QLineEdit" name="dnsLineEdit">
          <property name="font">
           <font>
-           <pointsize>9</pointsize>
+           <bold>false</bold>
           </font>
          </property>
          <property name="text">
-          <string>SOCKS5 代理端口</string>
+          <string>10.248.98.30</string>
          </property>
         </widget>
        </item>
-       <item row="1" column="1" colspan="2">
+       <item row="0" column="3">
         <widget class="QSpinBox" name="serverPortSpinBox">
          <property name="font">
           <font>
@@ -321,42 +393,6 @@
          </property>
         </widget>
        </item>
-       <item row="8" column="0" colspan="3">
-        <widget class="QPushButton" name="portForwardingPushButton">
-         <property name="text">
-          <string>设置端口转发</string>
-         </property>
-        </widget>
-       </item>
-       <item row="0" column="1" colspan="2">
-        <widget class="QLineEdit" name="serverAddressLineEdit">
-         <property name="font">
-          <font>
-           <pointsize>9</pointsize>
-          </font>
-         </property>
-         <property name="text">
-          <string>vpn.hitsz.edu.cn</string>
-         </property>
-        </widget>
-       </item>
-       <item row="5" column="1" colspan="2">
-        <widget class="QSpinBox" name="reconnectTimeSpinBox">
-         <property name="maximum">
-          <number>86400</number>
-         </property>
-         <property name="value">
-          <number>1</number>
-         </property>
-        </widget>
-       </item>
-       <item row="6" column="1">
-        <widget class="QCheckBox" name="proxyAllCheckBox">
-         <property name="text">
-          <string>代理全部流量</string>
-         </property>
-        </widget>
-       </item>
        <item row="0" column="0">
         <widget class="QLabel" name="zjuConnectTabLabel1">
          <property name="font">
@@ -369,39 +405,118 @@
          </property>
         </widget>
        </item>
-       <item row="5" column="0">
-        <widget class="QLabel" name="zjuConnectTabLabel7">
+       <item row="3" column="0">
+        <widget class="QLabel" name="zjuConnectTabLabel5">
          <property name="font">
           <font>
            <pointsize>9</pointsize>
           </font>
          </property>
          <property name="text">
-          <string>自动重连时间 (s)</string>
+          <string>SOCKS5 代理端口</string>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="1">
+        <widget class="QLineEdit" name="serverAddressLineEdit">
+         <property name="font">
+          <font>
+           <pointsize>9</pointsize>
+          </font>
+         </property>
+         <property name="text">
+          <string>vpn.hitsz.edu.cn</string>
          </property>
         </widget>
        </item>
        <item row="2" column="0">
-        <widget class="QLabel" name="zjuConnectTabLabel8">
+        <widget class="QLabel" name="zjuConnectTabLabel9">
          <property name="font">
           <font>
            <bold>false</bold>
           </font>
          </property>
          <property name="text">
-          <string>DNS 服务器</string>
+          <string>备用 DNS</string>
          </property>
         </widget>
        </item>
-       <item row="2" column="1" colspan="2">
-        <widget class="QLineEdit" name="dnsLineEdit">
+       <item row="12" column="0" colspan="4">
+        <widget class="QPushButton" name="portForwardingPushButton">
+         <property name="text">
+          <string>设置端口转发</string>
+         </property>
+        </widget>
+       </item>
+       <item row="3" column="1" colspan="3">
+        <widget class="QSpinBox" name="socks5PortSpinBox">
+         <property name="font">
+          <font>
+           <pointsize>9</pointsize>
+          </font>
+         </property>
+         <property name="maximum">
+          <number>65535</number>
+         </property>
+         <property name="value">
+          <number>11080</number>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="2">
+        <widget class="QLabel" name="label">
+         <property name="text">
+          <string>:</string>
+         </property>
+        </widget>
+       </item>
+       <item row="13" column="0" colspan="4">
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item row="6" column="3">
+        <widget class="QCheckBox" name="autoReconnectCheckBox">
+         <property name="toolTip">
+          <string>断线自动重连</string>
+         </property>
+         <property name="text">
+          <string>启用</string>
+         </property>
+         <property name="checked">
+          <bool>false</bool>
+         </property>
+        </widget>
+       </item>
+       <item row="5" column="0">
+        <widget class="QLabel" name="zjuConnectTabLabel7_2">
+         <property name="font">
+          <font>
+           <pointsize>9</pointsize>
+          </font>
+         </property>
+         <property name="text">
+          <string>Shadowsocks 服务器</string>
+         </property>
+        </widget>
+       </item>
+       <item row="5" column="1" colspan="3">
+        <widget class="QLineEdit" name="shadowsocksUrlLineEdit">
          <property name="font">
           <font>
            <bold>false</bold>
           </font>
          </property>
-         <property name="text">
-          <string>10.248.98.30</string>
+         <property name="placeholderText">
+          <string>不填则不启用，格式：ss://chiper:password@server:port</string>
          </property>
         </widget>
        </item>
@@ -409,30 +524,75 @@
      </widget>
     </widget>
    </item>
+   <item row="1" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Ok|QDialogButtonBox::RestoreDefaults</set>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <tabstops>
+  <tabstop>tabWidget</tabstop>
   <tabstop>usernameLineEdit</tabstop>
   <tabstop>passwordLineEdit</tabstop>
   <tabstop>autoStartComboBox</tabstop>
   <tabstop>connectAfterStartComboBox</tabstop>
-  <tabstop>applyPushButton</tabstop>
-  <tabstop>cancelPushButton</tabstop>
-  <tabstop>tabWidget</tabstop>
+  <tabstop>checkUpdateAfterStartComboBox</tabstop>
   <tabstop>serverAddressLineEdit</tabstop>
   <tabstop>serverPortSpinBox</tabstop>
+  <tabstop>dnsLineEdit</tabstop>
+  <tabstop>secondaryDnsLineEdit</tabstop>
   <tabstop>socks5PortSpinBox</tabstop>
   <tabstop>httpPortSpinBox</tabstop>
+  <tabstop>shadowsocksUrlLineEdit</tabstop>
   <tabstop>reconnectTimeSpinBox</tabstop>
-  <tabstop>multiLineCheckBox</tabstop>
-  <tabstop>proxyAllCheckBox</tabstop>
   <tabstop>autoReconnectCheckBox</tabstop>
+  <tabstop>multiLineCheckBox</tabstop>
+  <tabstop>keepAliveCheckBox</tabstop>
+  <tabstop>outsideAccessCheckBox</tabstop>
   <tabstop>autoSetProxyCheckBox</tabstop>
-  <tabstop>portForwardingPushButton</tabstop>
+  <tabstop>proxyAllCheckBox</tabstop>
   <tabstop>debugCheckBox</tabstop>
+  <tabstop>tunCheckBox</tabstop>
   <tabstop>routeCheckBox</tabstop>
-  <tabstop>dnsLineEdit</tabstop>
+  <tabstop>dnsHijackCheckBox</tabstop>
+  <tabstop>portForwardingPushButton</tabstop>
  </tabstops>
  <resources/>
- <connections/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>SettingWindow</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>239</x>
+     <y>374</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>242</x>
+     <y>197</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>SettingWindow</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>239</x>
+     <y>374</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>242</x>
+     <y>197</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
 </ui>
diff --git a/utils/utils.cpp b/utils/utils.cpp
index 404cb25..86ef8e7 100644
--- a/utils/utils.cpp
+++ b/utils/utils.cpp
@@ -67,7 +67,7 @@ void Utils::setWidgetFixedWhenHidden(QWidget *widget)
 void Utils::showAboutMessageBox(QWidget *parent)
 {
     QMessageBox messageBox(parent);
-    messageBox.setWindowTitle("关于本软件");
+    messageBox.setWindowTitle("关于");
     messageBox.setTextFormat(Qt::RichText);
     QString aboutText = QApplication::applicationDisplayName() + " v" + QApplication::applicationVersion() +
                         "<br>针对哈工大深圳的修改版 ZJU-Connect-for-Windows" +
diff --git a/zjuconnectcontroller/zjuconnectcontroller.cpp b/zjuconnectcontroller/zjuconnectcontroller.cpp
index 185aa35..e94d6a3 100644
--- a/zjuconnectcontroller/zjuconnectcontroller.cpp
+++ b/zjuconnectcontroller/zjuconnectcontroller.cpp
@@ -11,21 +11,33 @@ ZjuConnectController::ZjuConnectController()
 
         emit outputRead(output);
 
-        if (output.contains("Login failed") || output.contains("too many login failures"))
+        if (output.contains("Access is denied."))
         {
-            emit loginFailed();
-        }
-        else if (output.contains("Access is denied."))
-        {
-            emit accessDenied();
+            emit error(ZJU_ERROR::ACCESS_DENIED);
         }
         else if (output.contains("listen failed"))
         {
-            emit listenFailed();
+            emit error(ZJU_ERROR::LISTEN_FAILED);
         }
         else if (output.contains("client setup error"))
         {
-            emit setupError();
+            emit error(ZJU_ERROR::CLIENT_FAILED);
+        }
+        else if (output.contains("Invalid username or password!"))
+        {
+            emit error(ZJU_ERROR::INVALID_DETAIL);
+        }
+        else if (output.contains("You are trying brute-force login on this IP address."))
+        {
+            emit error(ZJU_ERROR::BRUTE_FORCE);
+        }
+        else if (output.contains("Login failed") || output.contains("too many login failures"))
+        {
+            emit error(ZJU_ERROR::OTHER_LOGIN_FAILED);
+        }
+        else if (output.contains("panic"))
+        {
+            emit error(ZJU_ERROR::OTHER);
         }
     });
 
@@ -35,21 +47,33 @@ ZjuConnectController::ZjuConnectController()
 
         emit outputRead(output);
 
-        if (output.contains("Login failed") || output.contains("too many login failures"))
+        if (output.contains("Access is denied."))
         {
-            emit loginFailed();
-        }
-        else if (output.contains("Access is denied."))
-        {
-            emit accessDenied();
+            emit error(ZJU_ERROR::ACCESS_DENIED);
         }
         else if (output.contains("listen failed"))
         {
-            emit listenFailed();
+            emit error(ZJU_ERROR::LISTEN_FAILED);
         }
         else if (output.contains("client setup error"))
         {
-            emit setupError();
+            emit error(ZJU_ERROR::CLIENT_FAILED);
+        }
+    	else if (output.contains("Invalid username or password!"))
+        {
+            emit error(ZJU_ERROR::INVALID_DETAIL);
+        }
+        else if (output.contains("You are trying brute-force login on this IP address."))
+        {
+            emit error(ZJU_ERROR::BRUTE_FORCE);
+        }
+        else if (output.contains("Login failed") || output.contains("too many login failures"))
+        {
+            emit error(ZJU_ERROR::OTHER_LOGIN_FAILED);
+        }
+        else if (output.contains("panic"))
+        {
+            emit error(ZJU_ERROR::OTHER);
         }
     });
 
@@ -60,21 +84,25 @@ ZjuConnectController::ZjuConnectController()
 }
 
 void ZjuConnectController::start(
-    const QString &program,
-    const QString &username,
-    const QString &password,
-    const QString &server,
+    const QString& program,
+    const QString& username,
+    const QString& password,
+    const QString& server,
     int port,
     const QString& dns,
+    const QString& secondaryDns,
     bool disableMultiLine,
+    bool disableKeepAlive,
     bool proxyAll,
-    const QString &socksBind,
-    const QString &httpBind,
+    const QString& socksBind,
+    const QString& httpBind,
+    const QString& shadowsocksUrl,
     bool tunMode,
     bool addRoute,
+    bool dnsHijack,
     bool debugDump,
-    const QString &tcpPortForwarding,
-    const QString &udpPortForwarding
+    const QString& tcpPortForwarding,
+    const QString& udpPortForwarding
 )
 {
     QStringList args;
@@ -97,11 +125,22 @@ void ZjuConnectController::start(
         args.append(dns);
     }
 
+    if (!secondaryDns.isEmpty())
+    {
+        args.append("-secondary-dns-server");
+        args.append(secondaryDns);
+    }
+
     if (disableMultiLine)
     {
         args.append("-disable-multi-line");
     }
 
+    if (disableKeepAlive)
+    {
+        args.append("-disable-keep-alive");
+    }
+
     if (proxyAll)
     {
         args.append("-proxy-all");
@@ -110,7 +149,11 @@ void ZjuConnectController::start(
     if (tunMode)
     {
         args.append("-tun-mode");
-        args.append("-dns-hijack");
+
+        if (dnsHijack)
+        {
+            args.append("-dns-hijack");
+        }
 
         if (addRoute)
         {
@@ -135,6 +178,12 @@ void ZjuConnectController::start(
         args.append(httpBind);
     }
 
+    if (!shadowsocksUrl.isEmpty())
+    {
+        args.append("-shadowsocks-url");
+        args.append(shadowsocksUrl);
+    }
+
     if (!tcpPortForwarding.isEmpty())
     {
         args.append("-tcp-port-forwarding");
@@ -147,7 +196,8 @@ void ZjuConnectController::start(
         args.append(udpPortForwarding);
     }
 
-    emit outputRead("参数：" + args.join(' '));
+    QString timeString = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss");
+    emit outputRead(timeString + " VPN 启动！参数：" + args.join(' '));
 
     zjuConnectProcess->start(program, QStringList({ "-username", username, "-password", password }) + args);
     zjuConnectProcess->waitForStarted();
diff --git a/zjuconnectcontroller/zjuconnectcontroller.h b/zjuconnectcontroller/zjuconnectcontroller.h
index cd397b3..f752622 100644
--- a/zjuconnectcontroller/zjuconnectcontroller.h
+++ b/zjuconnectcontroller/zjuconnectcontroller.h
@@ -3,6 +3,18 @@
 
 #include <QtCore>
 
+enum class ZJU_ERROR
+{
+    NONE,
+    INVALID_DETAIL,
+    BRUTE_FORCE,
+    OTHER_LOGIN_FAILED,
+    ACCESS_DENIED,
+    LISTEN_FAILED,
+    CLIENT_FAILED,
+    OTHER,
+};
+
 class ZjuConnectController : public QObject
 {
 Q_OBJECT
@@ -13,21 +25,25 @@ public:
     ~ZjuConnectController() override;
 
     void start(
-        const QString &program,
-        const QString &username,
-        const QString &password,
-        const QString &server = "",
+        const QString& program,
+        const QString& username,
+        const QString& password,
+        const QString& server = "",
         int port = 0,
         const QString& dns = "",
+        const QString& secondaryDns = "",
         bool disableMultiLine = false,
+        bool disableKeepAlive = false,
         bool proxyAll = false,
-        const QString &socksBind = "",
-        const QString &httpBind = "",
+        const QString& socksBind = "",
+        const QString& httpBind = "",
+        const QString& shadowsocksUrl = "",
         bool tunMode = false,
         bool addRoute = false,
+        bool dnsHijack = false,
         bool debugDump = false,
-        const QString &tcpPortForwarding = "",
-        const QString &udpPortForwarding = ""
+        const QString& tcpPortForwarding = "",
+        const QString& udpPortForwarding = ""
     );
 
     void stop();
@@ -35,13 +51,7 @@ public:
 
 signals:
 
-    void loginFailed();
-
-    void accessDenied();
-
-    void listenFailed();
-
-    void setupError();
+    void error(ZJU_ERROR err);
 
     void outputRead(const QString &output);
 
diff --git a/zjuconnectmode.cpp b/zjuconnectmode.cpp
index 19d2e8c..79fddd8 100644
--- a/zjuconnectmode.cpp
+++ b/zjuconnectmode.cpp
@@ -2,24 +2,13 @@
 
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
+#include "loginwindow/loginwindow.h"
 #include "utils/utils.h"
 
 void MainWindow::setModeToZjuConnect()
 {
-    mode = "RVPN";
-
     clearLog();
 
-    ui->tunCheckBox->show();
-
-    if (settings->contains("ZJUConnect/TunMode"))
-    {
-        if (settings->value("ZJUConnect/TunMode").toBool())
-        {
-            ui->tunCheckBox->setChecked(true);
-        }
-    }
-
     zjuConnectController = new ZjuConnectController();
 
     disconnect(ui->pushButton1, &QPushButton::clicked, nullptr, nullptr);
@@ -29,36 +18,26 @@ void MainWindow::setModeToZjuConnect()
     ui->pushButton2->hide();
 
     // 连接服务器
-    connect(zjuConnectController, &ZjuConnectController::outputRead, this, [&](const QString &output)
-    {
-        ui->logPlainTextEdit->appendPlainText(output.trimmed());
-    });
+    connect(zjuConnectController, &ZjuConnectController::outputRead, this,
+        [&](const QString &output)
+        {
+            ui->logPlainTextEdit->appendPlainText(output.trimmed());
+        });
 
-    connect(zjuConnectController, &ZjuConnectController::loginFailed, this, [&]()
-    {
-        isZjuConnectLoginError = true;
-    });
-
-    connect(zjuConnectController, &ZjuConnectController::accessDenied, this, [&]()
-    {
-        isZjuConnectAccessDenied = true;
-    });
-
-    connect(zjuConnectController, &ZjuConnectController::listenFailed, this, [&]()
-    {
-        isZjuConnectListenFailed = true;
-    });
-
-    connect(zjuConnectController, &ZjuConnectController::setupError, this, [&]()
-    {
-        isZjuConnectSetupError = true;
-    });
+    connect(zjuConnectController, &ZjuConnectController::error, this,
+        [&](ZJU_ERROR err)
+        {
+            if (zjuConnectError == ZJU_ERROR::NONE)
+            {
+                zjuConnectError = err;
+            }
+        });
 
     connect(zjuConnectController, &ZjuConnectController::finished, this, [&]()
     {
         if (
-            !isZjuConnectLoginError &&
-            !isZjuConnectAccessDenied &&
+            zjuConnectError != ZJU_ERROR::NONE &&
+            zjuConnectError != ZJU_ERROR::OTHER &&
             settings->value("ZJUConnect/AutoReconnect", false).toBool() &&
             isZjuConnectLinked
             )
@@ -87,26 +66,34 @@ void MainWindow::setModeToZjuConnect()
         }
         ui->pushButton2->hide();
 
-        if (isZjuConnectLoginError)
+        switch (zjuConnectError)
         {
-            isZjuConnectLoginError = false;
-            QMessageBox::critical(this, "错误", "登录失败！\n请检查设置中的网络账号和密码是否设置正确");
-        }
-        else if (isZjuConnectAccessDenied)
-        {
-            isZjuConnectAccessDenied = false;
-            QMessageBox::critical(this, "错误", "权限不足！\n请关闭程序，点击右键以管理员身份运行");
-        }
-        else if (isZjuConnectListenFailed)
-        {
-            isZjuConnectListenFailed = false;
-            QMessageBox::critical(this, "错误", "监听失败！\n请关闭占用端口的程序（如残留的 zju-connect.exe），或者监听其它端口");
-        }
-        else if (isZjuConnectSetupError)
-        {
-            isZjuConnectSetupError = false;
-            QMessageBox::critical(this, "错误", "连接失败！\n请检查网络和服务器设置是否正确");
+        case ZJU_ERROR::INVALID_DETAIL:
+            QMessageBox::critical(this, "错误", "登录失败！\n请检查设置中的网络账号和密码是否设置正确。");
+            break;
+        case ZJU_ERROR::BRUTE_FORCE:
+            QMessageBox::critical(this, "错误", "登录失败！\n登录尝试过于频繁，IP 被风控，请稍后重试或换用 EasyConnect。");
+            break;
+        case ZJU_ERROR::OTHER_LOGIN_FAILED:
+            QMessageBox::critical(this, "错误", "登录失败！\n未知原因，可将日志反馈给开发者以便调查。");
+            break;
+        case ZJU_ERROR::ACCESS_DENIED:
+            QMessageBox::critical(this, "错误", "权限不足！\n请关闭程序，点击右键以管理员身份运行。");
+            break;
+        case ZJU_ERROR::LISTEN_FAILED:
+            QMessageBox::critical(this, "错误", "监听失败！\n请关闭占用端口的程序（如残留的 zju-connect.exe），或者监听其它端口。");
+            break;
+        case ZJU_ERROR::CLIENT_FAILED:
+            QMessageBox::critical(this, "错误", "连接失败！\n可能是响应超时，请检查本地网络配置是否正常，服务器设置是否正确。");
+            break;
+        case ZJU_ERROR::OTHER:
+            QMessageBox::critical(this, "错误", "其它错误！\n未知原因，可将日志反馈给开发者以便调查。");
+            break;
+        case ZJU_ERROR::NONE:
+        default:
+            break;
         }
+        zjuConnectError = ZJU_ERROR::NONE;
     });
 
     connect(ui->pushButton1, &QPushButton::clicked,
@@ -114,51 +101,72 @@ void MainWindow::setModeToZjuConnect()
             {
                 if (!isZjuConnectLinked)
                 {
-                    addLog("VPN 启动！");
-
-                    if (settings->value("ZJUConnect/ServerAddress", "vpn.hitsz.edu.cn").toString().isEmpty())
+                    if (settings->contains("ZJUConnect/ServerAddress") &&
+                        settings->value("ZJUConnect/ServerAddress").toString().isEmpty())
                     {
                         QMessageBox::critical(this, "错误", "服务器地址不能为空");
                         return;
                     }
 
-                    if (settings->value("Common/Username", "").toString().isEmpty())
+                    QString username_ = settings->value("Common/Username", "").toString();
+                    QString password_ = QByteArray::fromBase64(settings->value("Common/Password", "").toString().toUtf8());
+
+                    auto startZjuConnect = [this](const QString& username, const QString& password)
+                	{
+                        zjuConnectController->start(
+                            "zju-connect.exe",
+                            username,
+                            password,
+                            settings->value("ZJUConnect/ServerAddress", "vpn.hitsz.edu.cn").toString(),
+                            settings->value("ZJUConnect/ServerPort", 443).toInt(),
+                            settings->value("ZJUConnect/DNS").toString(),
+                            settings->value("ZJUConnect/SecondaryDNS", "").toString(),
+                            !settings->value("ZJUConnect/MultiLine", true).toBool(),
+                            !settings->value("ZJUConnect/KeepAlive", true).toBool(),
+                            settings->value("ZJUConnect/ProxyAll", false).toBool(),
+                            "127.0.0.1:" + QString::number(settings->value("ZJUConnect/Socks5Port", 11080).toInt()),
+                            "127.0.0.1:" + QString::number(settings->value("ZJUConnect/HttpPort", 11081).toInt()),
+                            settings->value("ZJUConnect/ShadowsocksUrl", "").toString(),
+                            settings->value("ZJUConnect/TunMode", false).toBool(),
+                            settings->value("ZJUConnect/Route", false).toBool(),
+                            settings->value("ZJUConnect/DNSHijack", false).toBool(),
+                            settings->value("ZJUConnect/Debug", false).toBool(),
+                            settings->value("ZJUConnect/TcpPortForwarding", "").toString(),
+                            settings->value("ZJUConnect/UdpPortForwarding", "").toString()
+                        );
+
+                        isZjuConnectLinked = true;
+                        ui->pushButton1->setText("断开服务器");
+                        ui->pushButton2->show();
+
+                        if (settings->value("ZJUConnect/AutoSetProxy", true).toBool())
+                        {
+                            ui->pushButton2->click();
+                        }
+                	};
+
+                    if (username_.isEmpty() || password_.isEmpty())
                     {
-                        QMessageBox::critical(this, "错误", "用户名不能为空");
-                        return;
+                        login_window = new LoginWindow(this);
+                        login_window->setDetail(username_, password_);
+
+                        connect(login_window, &LoginWindow::login, this,
+                            [&, startZjuConnect](const QString& username, const QString& password, bool saveDetail)
+                            {
+                                if (saveDetail)
+                                {
+                                    settings->setValue("Common/Username", username);
+                                    settings->setValue("Common/Password", QString(password.toUtf8().toBase64()));
+                                    settings->sync();
+                                }
+                                startZjuConnect(username, password);
+                            }
+                        );
+                        login_window->show();
                     }
-
-                    if (QByteArray::fromBase64(settings->value("Common/Password", "").toString().toUtf8()).isEmpty())
+                    else
                     {
-                        QMessageBox::critical(this, "错误", "密码不能为空");
-                        return;
-                    }
-
-                    zjuConnectController->start(
-                        "zju-connect.exe",
-                        settings->value("Common/Username").toString(),
-                        QByteArray::fromBase64(settings->value("Common/Password").toString().toUtf8()),
-                        settings->value("ZJUConnect/ServerAddress").toString(),
-                        settings->value("ZJUConnect/ServerPort", 443).toInt(),
-                        settings->value("ZJUConnect/DNS").toString(),
-                        !settings->value("ZJUConnect/MultiLine", true).toBool(),
-                        settings->value("ZJUConnect/ProxyAll", false).toBool(),
-                        "127.0.0.1:" + QString::number(settings->value("ZJUConnect/Socks5Port", 11080).toInt()),
-                        "127.0.0.1:" + QString::number(settings->value("ZJUConnect/HttpPort", 11081).toInt()),
-                        ui->tunCheckBox->isChecked(),
-                        settings->value("ZJUConnect/Route", false).toBool(),
-                        settings->value("ZJUConnect/Debug", false).toBool(),
-                        settings->value("ZJUConnect/TcpPortForwarding", "").toString(),
-                        settings->value("ZJUConnect/UdpPortForwarding", "").toString()
-                    );
-
-                    isZjuConnectLinked = true;
-                    ui->pushButton1->setText("断开服务器");
-                    ui->pushButton2->show();
-
-                    if (settings->value("ZJUConnect/AutoSetProxy", false).toBool())
-                    {
-                        ui->pushButton2->click();
+                        startZjuConnect(username_, password_);
                     }
                 }
                 else
@@ -189,17 +197,11 @@ void MainWindow::setModeToZjuConnect()
                     );
                     if (proxySettings.value("ProxyEnable", 0).toInt() == 1)
                     {
-                        QMessageBox messageBox(this);
-                        messageBox.setWindowTitle("警告");
-                        messageBox.setText(
-                            "当前已存在系统代理配置\n是否覆盖当前系统代理配置？"
-                        );
+                        int rtn = QMessageBox::warning(this, "警告",
+                            "当前已存在系统代理配置（可能是 Clash 或其它代理软件）\n是否覆盖当前系统代理配置？",
+                            QMessageBox::Yes | QMessageBox::No);
 
-                        messageBox.addButton(QMessageBox::Yes)->setText("是");
-                        messageBox.addButton(QMessageBox::No)->setText("否");
-                        messageBox.setDefaultButton(QMessageBox::Yes);
-
-                        if (messageBox.exec() == QMessageBox::No)
+                        if (rtn == QMessageBox::No)
                         {
                             return;
                         }