diff --git a/console.php b/console.php
index d102334d80..7a77a462fe 100755
--- a/console.php
+++ b/console.php
@@ -88,6 +88,7 @@ $cli->addCommands(
         new ChamiloLMS\Command\Modulation\ModulationStopTurnCommand(),
         new ChamiloLMS\Command\Modulation\ModulationIsolateKeyCommand(),
         new ChamiloLMS\Command\Modulation\ModulationDuplicateInstallCommand(),
+        new ChamiloLMS\Command\Modulation\ModulationUsersInExamCommand(),
 
         // Chash commands.
         new Chash\Command\Database\RunSQLCommand(),
diff --git a/main/exercice/exercise.class.php b/main/exercice/exercise.class.php
index 954f03f979..779e4a80f4 100644
--- a/main/exercice/exercise.class.php
+++ b/main/exercice/exercise.class.php
@@ -6910,7 +6910,6 @@ class Exercise
                     array()
                 );
 
-                /*
                 $log_transactions_settings = TransactionLog::getTransactionSettings();
                 if (isset($log_transactions_settings['exercise_attempt'])) {
                     $transaction_controller = new TransactionLogController();
@@ -6931,7 +6930,7 @@ class Exercise
                         $transaction = $transaction_controller->createTransaction('exercise_attempt', $transaction_data);
                     }
                     $transaction->save();
-                }*/
+                }
             }
 
             // Send notification.
diff --git a/src/ChamiloLMS/Command/Modulation/ModulationIsolateKeyCommand.php b/src/ChamiloLMS/Command/Modulation/ModulationIsolateKeyCommand.php
index 1ea2d4c17d..a6ea2349e4 100644
--- a/src/ChamiloLMS/Command/Modulation/ModulationIsolateKeyCommand.php
+++ b/src/ChamiloLMS/Command/Modulation/ModulationIsolateKeyCommand.php
@@ -39,6 +39,9 @@ class ModulationIsolateKeyCommand extends Command
         Session::setSession($app['session']);
         Session::write('_user', api_get_user_info(1));
 
+        $destDir = '/var/opt/keys';
+        $certServ = 'http://debian4.beeznest.org/keys/';
+
         $branchId = intval($input->getArgument('key'));
         $sql = "SELECT session_id FROM branch_rel_session WHERE branch_id = $branchId ORDER BY display_order";
         $res = Database::query($sql);
@@ -64,37 +67,60 @@ class ModulationIsolateKeyCommand extends Command
         // optional clean-up. Delete if necessary
         $sql2 = "DELETE FROM branch_sync where branch_id != $branchId";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM session WHERE id NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM session_rel_course WHERE id_session NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM session_rel_course_rel_user WHERE id_session NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM session_rel_user WHERE id_session NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM c_quiz_distribution_rel_session WHERE session_id NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM access_url_rel_session WHERE session_id NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM branch_rel_session WHERE session_id NOT IN (".implode(', ',$sessions).")";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql2 = "DELETE FROM user WHERE user_id NOT IN (".implode(', ',$sessionUsers).") AND user_id > 1";
         echo $sql2."\n";
-        //Database::query($sql2);
+        Database::query($sql2);
         $sql3 = "SELECT count(*) FROM user";
         $res3 = Database::query($sql3);
         $count = Database::fetch_row($res3);
+        // Set the local branch accordindly.
+        // See if it's there before.
+        $local_branch_settings = api_get_settings_params_simple(array('variable = ?' => 'local_branch_id'));
+        if (empty($local_branch_settings['selected_value'])) {
+            $insert_local_branch_sql = sprintf("INSERT INTO settings_current (variable, type, category, selected_value, title, comment, access_url_changeable)
+                VALUES ('local_branch_id', 'textfield', 'LogTransactions', %d, 'LogTransactionsDefaultBranch', 'LogTransactionsDefaultBranchComment', 1)", $branchId);
+            Database::query($insert_local_branch_sql);
+        }
+        else {
+            $update_local_branch_sql = sprintf("UPDATE settings_current SET selected_value = %d WHERE variable = 'local_branch_id'", $branchId);
+            Database::query($update_local_branch_sql);
+        }
 
-        $output->writeln("$count users remain");
-        $output->writeln('The database should now be isolated.');
-        return true;
+        //$output->writeln("$count users remain");
+        //$output->writeln('The database should now be isolated.');
+
+        // Make dir if not present. Assume the command succeeds as everything
+        // executes as root anyway
+        if (!is_dir($destDir)) {
+            @mkdir($destDir);
+        }
+        // Get the SSL certificate from the server, at
+        //  http://server/keys/24.p12
+        $cert = file_get_contents($certServ.$branchId.'.p12');
+        @file_put_contents($destDir.'/'.$branchId.'.p12',$cert);
+        $caPub = file_get_contents($certServ.'ca-cert.pem');
+        @file_put_contents($destDir.'/ca-cert.pem',$caPub);
     }
 }
diff --git a/src/ChamiloLMS/Command/Modulation/ModulationUsersInExamCommand.php b/src/ChamiloLMS/Command/Modulation/ModulationUsersInExamCommand.php
new file mode 100644
index 0000000000..20a7f95ccf
--- /dev/null
+++ b/src/ChamiloLMS/Command/Modulation/ModulationUsersInExamCommand.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace ChamiloLMS\Command\Modulation;
+
+use Database;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Output\OutputInterface;
+use \ChamiloSession as Session;
+use \UserManager as UserManager;
+use Entity;
+
+/**
+ * This command "starts a turn" (in Chamilo language, makes a session available)
+ * for all its users (they need to already be subscribed to the session)
+ *
+ * Assumptions:
+ * - the session exists but has start and end date previous to the real exam date
+ * - the session is made available simply by making the start and end date period so large that there's no chance it wouldn't work
+ * - users need to be subscribed to the session already
+ * - the context must be very limited: the turn is defined by the display_order field in the branch_rel_session table. The value of display_order must be unique in this table (you cannot have more than one branch with sessions)
+ */
+class ModulationUsersInExamCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('modulation:users-in-exam')
+            ->setDescription('Gets the number of users still busy taking an exam');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        // This is just wrong, but was requested. Used to pass a session_id to
+        // be used on the MineduAuthHttpsPostSend plugin.
+        global $session_id, $app;
+        Session::setSession($app['session']);
+        Session::write('_user', api_get_user_info(1));
+
+        $sql = "SELECT NOW()";
+        $res = Database::query($sql);
+        $row = Database::fetch_row($res);
+        $current_date = $row[0];
+        $query = "SELECT count(distinct(user_id)) ".
+              " FROM track_e_attempt ".
+              " WHERE DATE_ADD(tms, ".
+              " INTERVAL 2 MINUTE) >= '".$current_date."'  ";
+        $res = Database::query($query);
+        $row = Database::fetch_row($res);
+        $output->writeln($row[0]);
+        return true;
+    }
+}
diff --git a/src/ChamiloLMS/Component/Auth/LoginSuccessHandler.php b/src/ChamiloLMS/Component/Auth/LoginSuccessHandler.php
index 48036e1ec1..b7107d5649 100644
--- a/src/ChamiloLMS/Component/Auth/LoginSuccessHandler.php
+++ b/src/ChamiloLMS/Component/Auth/LoginSuccessHandler.php
@@ -79,6 +79,7 @@ class LoginSuccessHandler implements AuthenticationSuccessHandlerInterface
 
             foreach ($personal_course_list as $course) {
                 if (!empty($course['session_id'])) {
+                    if (api_get_session_visibility($course['session_id'],$course['id']) != SESSION_AVAILABLE) { continue; }
                     $my_session_list[$course['session_id']] = true;
                     $count_of_courses_with_sessions++;
                 } else {