--- a/gui/src/MainWindow.cpp
+++ b/gui/src/MainWindow.cpp
@@ -180,6 +180,7 @@
   SettingsDialog settingsDialog (this);
   settingsDialog.exec ();
   emit settingsChanged ();
+  ResourceManager::instance ()->updateNetworkSettings ();
 }
 
 void

--- a/gui/src/OctaveGUI.cpp
+++ b/gui/src/OctaveGUI.cpp
@@ -39,6 +39,7 @@
   translator.load (translatorFile);
   application.installTranslator (&translator);
 
+  ResourceManager::instance ()->updateNetworkSettings ();
   MainWindow w;
   w.show ();
   return application.exec ();

--- a/gui/src/ResourceManager.cpp
+++ b/gui/src/ResourceManager.cpp
@@ -18,6 +18,7 @@
 
 #include "ResourceManager.h"
 #include <QFile>
+#include <QNetworkProxy>
 
 ResourceManager ResourceManager::m_singleton;
 
@@ -63,3 +64,43 @@
   // TODO: Quick hack to be able to test language files.
   return QString("../languages/%1.qm").arg(language);
 }
+
+void
+ResourceManager::updateNetworkSettings ()
+{
+  QNetworkProxy::ProxyType proxyType = QNetworkProxy::NoProxy;
+  if (m_settings->value ("useProxyServer").toBool ())
+    {
+      QString proxyTypeString = m_settings->value ("proxyType").toString ();
+      if (proxyTypeString == "NoProxy")
+        {
+          proxyType = QNetworkProxy::NoProxy;
+        }
+      else if (proxyTypeString == "DefaultProxy")
+        {
+          proxyType = QNetworkProxy::DefaultProxy;
+        }
+      else if (proxyTypeString == "Socks5Proxy")
+        {
+          proxyType = QNetworkProxy::Socks5Proxy;
+        }
+      else if (proxyTypeString == "HttpProxy")
+        {
+          proxyType = QNetworkProxy::HttpProxy;
+        }
+      else if (proxyTypeString == "HttpCachingProxy")
+        {
+          proxyType = QNetworkProxy::HttpCachingProxy;
+        }
+      else if (proxyTypeString == "FtpCachingProxy")
+        {
+          proxyType = QNetworkProxy::FtpCachingProxy;
+        }
+    }
+
+  QNetworkProxy proxy;
+  proxy.setType (proxyType);
+  proxy.setHostName (m_settings->value ("proxyHostName").toString ());
+  proxy.setPort (m_settings->value ("proxyPort").toInt ());
+  QNetworkProxy::setApplicationProxy (proxy);
+}

--- a/gui/src/ResourceManager.h
+++ b/gui/src/ResourceManager.h
@@ -37,6 +37,8 @@
   QString homePath ();
   void setSettings (QString file);
   QString findTranslatorFile (QString language);
+  void updateNetworkSettings ();
+
 private:
   ResourceManager ();
 

--- a/gui/src/SettingsDialog.cpp
+++ b/gui/src/SettingsDialog.cpp
@@ -22,6 +22,18 @@
   ui->showLastModified->setChecked (settings->value ("showLastModified").toBool());
   ui->showHiddenFiles->setChecked (settings->value ("showHiddenFiles").toBool());
   ui->useAlternatingRowColors->setChecked (settings->value ("useAlternatingRowColors").toBool());
+  ui->useProxyServer->setChecked (settings->value ("useProxyServer").toBool ());
+  ui->proxyHostName->setText (settings->value ("proxyHostName").toString ());
+
+  int currentIndex = 0;
+  QString proxyTypeString = settings->value ("proxyType").toString ();
+  while ( (currentIndex < ui->proxyType->count ()) && (ui->proxyType->currentText () != proxyTypeString))
+    {
+      currentIndex++;
+      ui->proxyType->setCurrentIndex (currentIndex);
+    }
+
+  ui->proxyPort->setText (settings->value ("proxyPort").toString ());
 }
 
 SettingsDialog::~SettingsDialog ()
@@ -40,5 +52,9 @@
   settings->setValue ("showLastModified", ui->showLastModified->isChecked ());
   settings->setValue ("showHiddenFiles", ui->showHiddenFiles->isChecked ());
   settings->setValue ("useAlternatingRowColors", ui->useAlternatingRowColors->isChecked ());
+  settings->setValue ("useProxyServer", ui->useProxyServer->isChecked ());
+  settings->setValue ("proxyType", ui->proxyType->currentText ());
+  settings->setValue ("proxyHostName", ui->proxyHostName->text ());
+  settings->setValue ("proxyPort", ui->proxyPort->text ());
   delete ui;
 }