diff --git a/src/tests/logbuffer/LogBuffer.pro b/src/tests/logbuffer/LogBuffer.pro
index 4c3bedd2..ad27633e 100644
--- a/src/tests/logbuffer/LogBuffer.pro
+++ b/src/tests/logbuffer/LogBuffer.pro
@@ -3,9 +3,15 @@ include(../common/Test.pri)
 SOURCES += \
     $$UIPATH/activityLog/logbuffer.cpp \
     $$UIPATH/activityLog/logentry.cpp \
-    $$UIPATH/fortcommon.cpp
+    $$UIPATH/fortcommon.cpp \
+    $$UIPATH/util/fileutil.cpp \
+    $$UIPATH/util/netutil.cpp \
+    $$UIPATH/util/processinfo.cpp
 
 HEADERS += \
     $$UIPATH/activityLog/logbuffer.h \
     $$UIPATH/activityLog/logentry.h \
-    $$UIPATH/fortcommon.h
+    $$UIPATH/fortcommon.h \
+    $$UIPATH/util/fileutil.h \
+    $$UIPATH/util/netutil.h \
+    $$UIPATH/util/processinfo.h
diff --git a/src/tests/logbuffer/test.cpp b/src/tests/logbuffer/test.cpp
index fe094534..b5e9b485 100644
--- a/src/tests/logbuffer/test.cpp
+++ b/src/tests/logbuffer/test.cpp
@@ -25,13 +25,13 @@ void Test::logWriteRead()
 
     // Write
     for (int i = 0; i < testCount; ++i) {
-        QCOMPARE(buf.write(entry), entrySize);
+        QCOMPARE(buf.write(&entry), entrySize);
     }
 
     // Read
-    while (buf.read(entry)) {
+    while (buf.read(&entry)) {
         QCOMPARE(entry.ip(), ip);
         QCOMPARE(entry.pid(), pid);
-        QCOMPARE(entry.path(), path);
+        QCOMPARE(entry.dosPath(), path);
     }
 }
diff --git a/src/tests/logreader/test.cpp b/src/tests/logreader/test.cpp
index 4dafa102..901165a3 100644
--- a/src/tests/logreader/test.cpp
+++ b/src/tests/logreader/test.cpp
@@ -68,9 +68,9 @@ void Test::printLogs(LogBuffer &buf)
 {
     LogEntry entry;
 
-    while (buf.read(entry)) {
+    while (buf.read(&entry)) {
         const quint32 pid = entry.pid();
-        QString dosPath = entry.path();
+        QString dosPath = entry.dosPath();
 
         if (dosPath.isEmpty()) {
             ProcessInfo pi(pid);
diff --git a/src/ui/FortFirewall.pro b/src/ui/FortFirewall.pro
index 6b6734da..dc777a7e 100644
--- a/src/ui/FortFirewall.pro
+++ b/src/ui/FortFirewall.pro
@@ -12,7 +12,8 @@ SOURCES += \
     conf/addressgroup.cpp \
     conf/appgroup.cpp \
     conf/firewallconf.cpp \
-    drivermanager.cpp \
+    driver/drivermanager.cpp \
+    driver/driverworker.cpp \
     fortcommon.cpp \
     fortmanager.cpp \
     fortsettings.cpp \
@@ -29,7 +30,8 @@ HEADERS += \
     conf/addressgroup.h \
     conf/appgroup.h \
     conf/firewallconf.h \
-    drivermanager.h \
+    driver/drivermanager.h \
+    driver/driverworker.h \
     fortcommon.h \
     fortmanager.h \
     fortsettings.h \
diff --git a/src/ui/activityLog/logbuffer.cpp b/src/ui/activityLog/logbuffer.cpp
index 67cf7ddc..f35f52db 100644
--- a/src/ui/activityLog/logbuffer.cpp
+++ b/src/ui/activityLog/logbuffer.cpp
@@ -7,7 +7,8 @@ LogBuffer::LogBuffer(int bufferSize, QObject *parent) :
     QObject(parent),
     m_top(0),
     m_offset(0),
-    m_array(bufferSize, Qt::Uninitialized)
+    m_array(bufferSize ? bufferSize : FortCommon::bufferSize(),
+            Qt::Uninitialized)
 {
 }
 
@@ -20,9 +21,9 @@ void LogBuffer::prepareFor(int len)
     }
 }
 
-int LogBuffer::write(const LogEntry &logEntry)
+int LogBuffer::write(const LogEntry *logEntry)
 {
-    const QString path = logEntry.path();
+    const QString path = logEntry->dosPath();
     const int pathLen = path.size() * sizeof(wchar_t);
 
     const int entrySize = FortCommon::logSize(pathLen);
@@ -30,7 +31,8 @@ int LogBuffer::write(const LogEntry &logEntry)
 
     char *output = m_array.data() + m_top;
 
-    FortCommon::logHeaderWrite(output, logEntry.ip(), logEntry.pid(), pathLen);
+    FortCommon::logHeaderWrite(output, logEntry->ip(),
+                               logEntry->pid(), pathLen);
     output += FortCommon::logHeaderSize();
 
     if (pathLen) {
@@ -42,7 +44,7 @@ int LogBuffer::write(const LogEntry &logEntry)
     return entrySize;
 }
 
-int LogBuffer::read(LogEntry &logEntry)
+int LogBuffer::read(LogEntry *logEntry)
 {
     if (m_offset >= m_top)
         return 0;
@@ -59,9 +61,9 @@ int LogBuffer::read(LogEntry &logEntry)
                                        pathLen / sizeof(wchar_t));
     }
 
-    logEntry.setIp(ip);
-    logEntry.setPid(pid);
-    logEntry.setPath(path);
+    logEntry->setIp(ip);
+    logEntry->setPid(pid);
+    logEntry->setDosPath(path);
 
     const int entrySize = FortCommon::logSize(pathLen);
     m_offset += entrySize;
diff --git a/src/ui/activityLog/logbuffer.h b/src/ui/activityLog/logbuffer.h
index cb6f35dc..c55d6e71 100644
--- a/src/ui/activityLog/logbuffer.h
+++ b/src/ui/activityLog/logbuffer.h
@@ -27,8 +27,8 @@ public slots:
         m_offset = 0;
     }
 
-    int write(const LogEntry &logEntry);
-    int read(LogEntry &logEntry);
+    int write(const LogEntry *logEntry);
+    int read(LogEntry *logEntry);
 
 private:
     void prepareFor(int len);
diff --git a/src/ui/activityLog/logentry.cpp b/src/ui/activityLog/logentry.cpp
index 3150e529..622d62b2 100644
--- a/src/ui/activityLog/logentry.cpp
+++ b/src/ui/activityLog/logentry.cpp
@@ -1,12 +1,16 @@
 #include "logentry.h"
 
+#include "../util/fileutil.h"
+#include "../util/netutil.h"
+#include "../util/processinfo.h"
+
 LogEntry::LogEntry(quint32 ip, quint32 pid,
-                   const QString &path,
+                   const QString &dosPath,
                    QObject *parent) :
     QObject(parent),
     m_ip(ip),
     m_pid(pid),
-    m_path(path)
+    m_dosPath(dosPath)
 {
 }
 
@@ -26,10 +30,26 @@ void LogEntry::setPid(quint32 pid)
     }
 }
 
-void LogEntry::setPath(const QString &path)
+void LogEntry::setDosPath(const QString &dosPath)
 {
-    if (m_path != path) {
-        m_path = path;
-        emit pathChanged();
+    if (m_dosPath != dosPath) {
+        m_dosPath = dosPath;
+        emit dosPathChanged();
     }
 }
+
+QString LogEntry::ipText() const
+{
+    return NetUtil::ip4ToText(m_ip);
+}
+
+QString LogEntry::path() const
+{
+    QString dosPath = m_dosPath;
+    if (dosPath.isEmpty()) {
+        const ProcessInfo pi(m_pid);
+        dosPath = pi.dosPath();
+    }
+
+    return FileUtil::dosPathToPath(dosPath);
+}
diff --git a/src/ui/activityLog/logentry.h b/src/ui/activityLog/logentry.h
index 72ad2c2f..92cf6757 100644
--- a/src/ui/activityLog/logentry.h
+++ b/src/ui/activityLog/logentry.h
@@ -8,11 +8,13 @@ class LogEntry : public QObject
     Q_OBJECT
     Q_PROPERTY(quint32 ip READ ip WRITE setIp NOTIFY ipChanged)
     Q_PROPERTY(quint32 pid READ pid WRITE setPid NOTIFY pidChanged)
-    Q_PROPERTY(QString path READ path WRITE setPath NOTIFY pathChanged)
+    Q_PROPERTY(QString dosPath READ dosPath WRITE setDosPath NOTIFY dosPathChanged)
+    Q_PROPERTY(QString ipText READ ipText NOTIFY ipChanged)
+    Q_PROPERTY(QString path READ path NOTIFY dosPathChanged)
 
 public:
     explicit LogEntry(quint32 ip = 0, quint32 pid = 0,
-                      const QString &path = QString(),
+                      const QString &dosPath = QString(),
                       QObject *parent = nullptr);
 
     quint32 ip() const { return m_ip; }
@@ -21,23 +23,23 @@ public:
     quint32 pid() const { return m_pid; }
     void setPid(quint32 pid);
 
-    QString path() const { return m_path; }
-    void setPath(const QString &path);
+    QString dosPath() const { return m_dosPath; }
+    void setDosPath(const QString &dosPath);
+
+    QString ipText() const;
+    QString path() const;
 
 signals:
     void ipChanged();
     void pidChanged();
-    void pathChanged();
+    void dosPathChanged();
 
 public slots:
 
-private:
-    friend class LogBuffer;
-
 private:
     quint32 m_ip;
     quint32 m_pid;
-    QString m_path;
+    QString m_dosPath;
 };
 
 #endif // LOGENTRY_H
diff --git a/src/ui/conf/firewallconf.cpp b/src/ui/conf/firewallconf.cpp
index 8405859a..69245758 100644
--- a/src/ui/conf/firewallconf.cpp
+++ b/src/ui/conf/firewallconf.cpp
@@ -119,6 +119,11 @@ void FirewallConf::copyFlags(const FirewallConf &o)
     setAppGroupBits(o.appGroupBits());
 }
 
+void FirewallConf::copyTempFlags(const FirewallConf &o)
+{
+    setAppLogBlocked(o.appLogBlocked());
+}
+
 QVariant FirewallConf::toVariant() const
 {
     QVariantMap map;
diff --git a/src/ui/conf/firewallconf.h b/src/ui/conf/firewallconf.h
index 6525aa4f..5fa49f87 100644
--- a/src/ui/conf/firewallconf.h
+++ b/src/ui/conf/firewallconf.h
@@ -45,6 +45,7 @@ public:
     QQmlListProperty<AppGroup> appGroups();
 
     void copyFlags(const FirewallConf &o);
+    void copyTempFlags(const FirewallConf &o);
 
     QVariant toVariant() const;
     void fromVariant(const QVariant &v);
diff --git a/src/ui/drivermanager.cpp b/src/ui/driver/drivermanager.cpp
similarity index 50%
rename from src/ui/drivermanager.cpp
rename to src/ui/driver/drivermanager.cpp
index 64c36838..0eebb630 100644
--- a/src/ui/drivermanager.cpp
+++ b/src/ui/driver/drivermanager.cpp
@@ -1,14 +1,30 @@
 #include "drivermanager.h"
 
-#include "fortcommon.h"
-#include "conf/firewallconf.h"
-#include "util/confutil.h"
-#include "util/device.h"
+#include <QThread>
+
+#include "../activityLog/logbuffer.h"
+#include "../activityLog/logentry.h"
+#include "../fortcommon.h"
+#include "../conf/firewallconf.h"
+#include "../util/confutil.h"
+#include "../util/device.h"
+#include "driverworker.h"
 
 DriverManager::DriverManager(QObject *parent) :
     QObject(parent),
-    m_device(new Device(this))
+    m_device(new Device(this)),
+    m_driverWorker(new DriverWorker(m_device)),  // no parent, delete later
+    m_workerThread(new QThread(this))
 {
+    setupWorker();
+}
+
+DriverManager::~DriverManager()
+{
+    cancelDeviceIo();
+
+    m_workerThread->quit();
+    m_workerThread->wait();
 }
 
 void DriverManager::setErrorMessage(const QString &errorMessage)
@@ -19,16 +35,39 @@ void DriverManager::setErrorMessage(const QString &errorMessage)
     }
 }
 
+void DriverManager::setupWorker()
+{
+    m_driverWorker->moveToThread(m_workerThread);
+
+    connect(m_workerThread, &QThread::finished,
+            m_driverWorker, &QObject::deleteLater);
+
+    connect(m_driverWorker, &DriverWorker::readLogResult,
+            this, &DriverManager::readLogResult);
+
+    m_workerThread->start();
+}
+
 bool DriverManager::openDevice()
 {
     if (!m_device->open(FortCommon::deviceName())) {
-        setErrorMessage(m_device->getLastErrorMessage());
+        setErrorMessage(m_device->lastErrorMessage());
         return false;
     }
 
     return true;
 }
 
+void DriverManager::enableDeviceIo()
+{
+    m_driverWorker->enableIo();
+}
+
+bool DriverManager::cancelDeviceIo()
+{
+    return m_driverWorker->cancelIo();
+}
+
 bool DriverManager::writeConf(const FirewallConf &conf)
 {
     ConfUtil confUtil;
@@ -61,10 +100,20 @@ bool DriverManager::writeConfFlags(const FirewallConf &conf)
 
 bool DriverManager::writeData(int code, QByteArray &buf, int size)
 {
+    cancelDeviceIo();
+
     if (!m_device->ioctl(code, buf.data(), size)) {
-        setErrorMessage(m_device->getLastErrorMessage());
+        setErrorMessage(m_device->lastErrorMessage());
         return false;
     }
 
     return true;
 }
+
+void DriverManager::readLogAsync(LogBuffer *logBuffer)
+{
+    cancelDeviceIo();
+    enableDeviceIo();
+
+    emit m_driverWorker->readLogAsync(logBuffer);
+}
diff --git a/src/ui/drivermanager.h b/src/ui/driver/drivermanager.h
similarity index 68%
rename from src/ui/drivermanager.h
rename to src/ui/driver/drivermanager.h
index 79defc20..1365042c 100644
--- a/src/ui/drivermanager.h
+++ b/src/ui/driver/drivermanager.h
@@ -3,8 +3,12 @@
 
 #include <QObject>
 
+class QThread;
+
 class Device;
+class DriverWorker;
 class FirewallConf;
+class LogBuffer;
 
 class DriverManager : public QObject
 {
@@ -13,25 +17,37 @@ class DriverManager : public QObject
 
 public:
     explicit DriverManager(QObject *parent = nullptr);
+    virtual ~DriverManager();
 
     QString errorMessage() const { return m_errorMessage; }
 
 signals:
     void errorMessageChanged();
 
+    void readLogResult(bool success, const QString &errorMessage);
+
 public slots:
     bool openDevice();
 
+    void enableDeviceIo();
+    bool cancelDeviceIo();
+
     bool writeConf(const FirewallConf &conf);
     bool writeConfFlags(const FirewallConf &conf);
 
+    void readLogAsync(LogBuffer *logBuffer);
+
 private:
     void setErrorMessage(const QString &errorMessage);
 
+    void setupWorker();
+
     bool writeData(int code, QByteArray &buf, int size);
 
 private:
     Device *m_device;
+    DriverWorker *m_driverWorker;
+    QThread *m_workerThread;
 
     QString m_errorMessage;
 };
diff --git a/src/ui/driver/driverworker.cpp b/src/ui/driver/driverworker.cpp
new file mode 100644
index 00000000..1338a8cc
--- /dev/null
+++ b/src/ui/driver/driverworker.cpp
@@ -0,0 +1,69 @@
+#include "driverworker.h"
+
+#include "../activityLog/logbuffer.h"
+#include "../fortcommon.h"
+#include "../util/device.h"
+
+DriverWorker::DriverWorker(Device *device, QObject *parent) :
+    QObject(parent),
+    m_isWorking(false),
+    m_cancelled(false),
+    m_device(device)
+{
+    connect(this, &DriverWorker::readLogAsync,
+            this, &DriverWorker::readLog, Qt::QueuedConnection);
+}
+
+void DriverWorker::enableIo()
+{
+    m_mutex.lock();
+    m_cancelled = false;
+    m_mutex.unlock();
+}
+
+bool DriverWorker::cancelIo()
+{
+    m_cancelled = true;
+
+    const bool res = m_isWorking ? m_device->cancelIo() : false;
+
+    m_mutex.lock();
+    while (m_isWorking) {
+        m_waitCondition.wait(&m_mutex);
+    }
+    m_mutex.unlock();
+
+    return res;
+}
+
+void DriverWorker::readLog(LogBuffer *logBuffer)
+{
+    QByteArray &array = logBuffer->array();
+    int nr;
+
+    bool success;
+    QString errorMessage;
+
+    m_mutex.lock();
+    if (!m_cancelled) {
+        m_isWorking = true;
+        success = m_device->ioctl(
+                    FortCommon::ioctlGetLog(), nullptr, 0,
+                    array.data(), array.size(), &nr);
+        m_isWorking = false;
+
+        errorMessage = m_cancelled
+                ? QString() : m_device->lastErrorMessage();
+
+        if (m_cancelled) {
+            m_waitCondition.wakeOne();
+        }
+    }
+    m_mutex.unlock();
+
+    if (success) {
+        logBuffer->reset(nr);
+    }
+
+    emit readLogResult(success, errorMessage);
+}
diff --git a/src/ui/driver/driverworker.h b/src/ui/driver/driverworker.h
new file mode 100644
index 00000000..5e1c0c2e
--- /dev/null
+++ b/src/ui/driver/driverworker.h
@@ -0,0 +1,39 @@
+#ifndef DRIVERWORKER_H
+#define DRIVERWORKER_H
+
+#include <QMutex>
+#include <QObject>
+#include <QWaitCondition>
+
+class Device;
+class LogBuffer;
+
+class DriverWorker : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit DriverWorker(Device *device, QObject *parent = nullptr);
+
+signals:
+    void readLogAsync(LogBuffer *logBuffer);
+    void readLogResult(bool success, const QString &errorMessage);
+
+public slots:
+    void enableIo();
+    bool cancelIo();
+
+private slots:
+    void readLog(LogBuffer *logBuffer);
+
+private:
+    volatile bool m_isWorking;
+    volatile bool m_cancelled;
+
+    Device *m_device;
+
+    QMutex m_mutex;
+    QWaitCondition m_waitCondition;
+};
+
+#endif // DRIVERWORKER_H
diff --git a/src/ui/fortmanager.cpp b/src/ui/fortmanager.cpp
index 8c977740..e16378dd 100644
--- a/src/ui/fortmanager.cpp
+++ b/src/ui/fortmanager.cpp
@@ -8,10 +8,12 @@
 #include <QSystemTrayIcon>
 #include <QWindow>
 
+#include "activityLog/logbuffer.h"
+#include "activityLog/logentry.h"
 #include "conf/addressgroup.h"
 #include "conf/appgroup.h"
 #include "conf/firewallconf.h"
-#include "drivermanager.h"
+#include "driver/drivermanager.h"
 #include "fortsettings.h"
 
 FortManager::FortManager(QObject *parent) :
@@ -33,14 +35,19 @@ FortManager::FortManager(QObject *parent) :
 
 void FortManager::registerQmlTypes()
 {
-    qmlRegisterUncreatableType<FortManager>("com.fortfirewall", 1, 0, "FortManager",
-                                            "Singleton");
+    qmlRegisterUncreatableType<DriverManager>("com.fortfirewall", 1, 0, "DriverManager",
+                                             "Singleton");
+    qmlRegisterUncreatableType<FortSettings>("com.fortfirewall", 1, 0, "FortSettings",
+                                             "Singleton");
     qmlRegisterUncreatableType<FortSettings>("com.fortfirewall", 1, 0, "FortSettings",
                                              "Singleton");
 
     qmlRegisterType<AddressGroup>("com.fortfirewall", 1, 0, "AddressGroup");
     qmlRegisterType<AppGroup>("com.fortfirewall", 1, 0, "AppGroup");
     qmlRegisterType<FirewallConf>("com.fortfirewall", 1, 0, "FirewallConf");
+
+    qmlRegisterType<LogBuffer>("com.fortfirewall", 1, 0, "LogBuffer");
+    qmlRegisterType<LogEntry>("com.fortfirewall", 1, 0, "LogEntry");
 }
 
 void FortManager::setupTrayIcon()
@@ -114,7 +121,12 @@ bool FortManager::saveConf()
 bool FortManager::applyConf()
 {
     Q_ASSERT(m_firewallConfToEdit != nullConf());
-    return saveSettings(cloneConf(*m_firewallConfToEdit));
+
+    FirewallConf *newConf = cloneConf(*m_firewallConfToEdit);
+
+    newConf->copyTempFlags(*m_firewallConf);
+
+    return saveSettings(newConf);
 }
 
 void FortManager::setFirewallConfToEdit(FirewallConf *conf)
@@ -149,6 +161,24 @@ bool FortManager::saveSettings(FirewallConf *newConf)
     return true;
 }
 
+bool FortManager::updateDriverFlags(FirewallConf *conf)
+{
+    // Update driver
+    if (!m_driverManager->writeConfFlags(*conf)) {
+        showErrorBox(m_driverManager->errorMessage());
+        return false;
+    }
+
+    return true;
+}
+
+void FortManager::setAppLogBlocked(bool enable)
+{
+    m_firewallConf->setAppLogBlocked(enable);
+
+    updateDriverFlags(m_firewallConf);
+}
+
 void FortManager::saveTrayFlags()
 {
     m_firewallConf->setFilterEnabled(m_filterEnabledAction->isChecked());
@@ -167,10 +197,7 @@ void FortManager::saveTrayFlags()
 
     m_fortSettings->writeConfFlags(*m_firewallConf);
 
-    // Update driver
-    if (!m_driverManager->writeConfFlags(*m_firewallConf)) {
-        showErrorBox(m_driverManager->errorMessage());
-    }
+    updateDriverFlags(m_firewallConf);
 }
 
 FirewallConf *FortManager::cloneConf(const FirewallConf &conf)
diff --git a/src/ui/fortmanager.h b/src/ui/fortmanager.h
index 9d4c921e..3b5a8244 100644
--- a/src/ui/fortmanager.h
+++ b/src/ui/fortmanager.h
@@ -10,12 +10,14 @@ class QSystemTrayIcon;
 class DriverManager;
 class FortSettings;
 class FirewallConf;
+class LogBuffer;
 
 class FortManager : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(FortSettings *fortSettings READ fortSettings CONSTANT)
     Q_PROPERTY(FirewallConf *firewallConfToEdit READ firewallConfToEdit NOTIFY firewallConfToEditChanged)
+    Q_PROPERTY(DriverManager *driverManager READ driverManager CONSTANT)
 
 public:
     explicit FortManager(QObject *parent = nullptr);
@@ -26,6 +28,8 @@ public:
         return m_firewallConfToEdit ? m_firewallConfToEdit : m_firewallConf;
     }
 
+    DriverManager *driverManager() const { return m_driverManager; }
+
 signals:
     void firewallConfToEditChanged();
 
@@ -42,6 +46,8 @@ public slots:
     bool saveConf();
     bool applyConf();
 
+    void setAppLogBlocked(bool enable);
+
 private slots:
     void saveTrayFlags();
 
@@ -56,6 +62,7 @@ private:
     void setupEngine();
 
     bool saveSettings(FirewallConf *newConf);
+    bool updateDriverFlags(FirewallConf *conf);
 
     FirewallConf *cloneConf(const FirewallConf &conf);
 
diff --git a/src/ui/qml/main.qml b/src/ui/qml/main.qml
index 20201e97..6ecf8cca 100644
--- a/src/ui/qml/main.qml
+++ b/src/ui/qml/main.qml
@@ -26,7 +26,9 @@ ApplicationWindow {
 
     onVisibleChanged: {
         if (visible) {
-            mainPage.initialize();
+            mainPage.opened();
+        } else {
+            mainPage.closed();
         }
     }
 
diff --git a/src/ui/qml/pages/ActivityPage.qml b/src/ui/qml/pages/ActivityPage.qml
index f942b69b..77aaf1b8 100644
--- a/src/ui/qml/pages/ActivityPage.qml
+++ b/src/ui/qml/pages/ActivityPage.qml
@@ -5,17 +5,99 @@ import com.fortfirewall 1.0
 
 BasePage {
 
+    readonly property DriverManager driverManager: fortManager.driverManager
+
+    property bool enableLogReading: false
+
+    property var appPaths: []
+    property var appPathsMap: ({})
+
+    function readLogAsync() {
+        driverManager.readLogAsync(logBuffer);
+    }
+
+    function cancelDeviceIo() {
+        driverManager.cancelDeviceIo();
+    }
+
+    function switchLogReading(enable) {
+        enableLogReading = enable;
+
+        fortManager.setAppLogBlocked(enable);
+
+        if (enable) {
+            readLogAsync();
+        } else {
+            cancelDeviceIo();
+        }
+    }
+
+    function clearAppPaths() {
+        appPaths = ([]);
+        appPathsMap = ({});
+    }
+
+    function processLogBuffer() {
+        while (logBuffer.read(logEntry)) {
+            var path = logEntry.path;
+            var ipText = logEntry.ipText;
+console.log(">", path, ipText);
+
+            var ipTextsMap = appPathsMap[path];
+            if (!ipTextsMap) {
+                ipTextsMap = ({});
+                appPathsMap[path] = ipTextsMap;
+            }
+
+            ipTextsMap[ipText] = (ipTextsMap[ipText] || 0) + 1;
+        }
+    }
+
+    Connections {
+        target: mainPage
+        onClosed: switchLogReading(false)
+    }
+
+    Connections {
+        target: driverManager
+        onReadLogResult: {
+            if (success) {
+                processLogBuffer();
+            }
+
+            if (enableLogReading) {
+                readLogAsync();
+            }
+        }
+    }
+
+    LogBuffer {
+        id: logBuffer
+    }
+    LogEntry {
+        id: logEntry
+    }
+
     ColumnLayout {
         anchors.fill: parent
 
-        Switch {
-            anchors.right: parent.right
-            onToggled: {
-                firewallConf.appLogBlocked = checked;
+        RowLayout {
+            Button {
+                text: QT_TRANSLATE_NOOP("qml", "Clear")
+                onClicked: clearAppPaths()
+            }
+
+            Item {
+                Layout.fillWidth: true
+            }
+
+            Switch {
+                text: QT_TRANSLATE_NOOP("qml", "Show Blocked Applications and Addresses")
+                onToggled: switchLogReading(checked)
             }
         }
 
-        GridView {
+        ListView {
             Layout.fillWidth: true
             Layout.fillHeight: true
         }
diff --git a/src/ui/qml/pages/MainPage.qml b/src/ui/qml/pages/MainPage.qml
index 7e25a5b6..32ce4e31 100644
--- a/src/ui/qml/pages/MainPage.qml
+++ b/src/ui/qml/pages/MainPage.qml
@@ -6,9 +6,11 @@ import com.fortfirewall 1.0
 Page {
     id: mainPage
 
+    signal opened()
+    signal closed()
     signal saved()
 
-    function initialize() {
+    onOpened: {
         tabBar.currentItem.forceActiveFocus();
     }
 
diff --git a/src/ui/util/device.cpp b/src/ui/util/device.cpp
index fb09f271..3ca0953f 100644
--- a/src/ui/util/device.cpp
+++ b/src/ui/util/device.cpp
@@ -40,6 +40,11 @@ bool Device::close()
     return res;
 }
 
+bool Device::cancelIo()
+{
+    return CancelIoEx(m_handle, NULL);
+}
+
 bool Device::ioctl(int code, char *in, int inSize,
                    char *out, int outSize,
                    int *retSize)
@@ -57,10 +62,10 @@ bool Device::ioctl(int code, char *in, int inSize,
     return res;
 }
 
-QString Device::getLastErrorMessage()
+QString Device::lastErrorMessage()
 {
     const DWORD err = GetLastError();
-    LPWSTR buf = nullptr;
+    LPWSTR buf = NULL;
 
     FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER
                    | FORMAT_MESSAGE_FROM_SYSTEM
diff --git a/src/ui/util/device.h b/src/ui/util/device.h
index a1ddf7d9..0c6cb538 100644
--- a/src/ui/util/device.h
+++ b/src/ui/util/device.h
@@ -11,7 +11,7 @@ public:
     explicit Device(QObject *parent = nullptr);
     virtual ~Device();
 
-    static QString getLastErrorMessage();
+    static QString lastErrorMessage();
 
 signals:
 
@@ -19,6 +19,8 @@ public slots:
     bool open(const QString &filePath);
     bool close();
 
+    bool cancelIo();
+
     bool ioctl(int code, char *in = nullptr, int inSize = 0,
                char *out = nullptr, int outSize = 0,
                int *retSize = nullptr);