diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 363a38cb99e2d2799db8f0cc66a6c2c3ef3d3be6..bbf8cfd3b794fda0f2677b16c252716a41870d34 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -217,7 +217,12 @@ class installer_base {
 		//* check sql-mode
 		$check_sql_mode = $this->db->queryOneRecord("SELECT @@sql_mode");
 
-		if ($check_sql_mode['@@sql_mode'] != '' && $check_sql_mode['@@sql_mode'] != 'NO_ENGINE_SUBSTITUTION') die('Wrong SQL-mode. You should use NO_ENGINE_SUBSTITUTION');
+		if ($check_sql_mode['@@sql_mode'] != '' && $check_sql_mode['@@sql_mode'] != 'NO_ENGINE_SUBSTITUTION') {
+			echo "Wrong SQL-mode. You should use NO_ENGINE_SUBSTITUTION. Add\n\n";
+			echo "    sql-mode=\"NO_ENGINE_SUBSTITUTION\"\n\n";
+			echo"to the mysqld-section in /etc/mysql/my.cnf and restart mysqld afterwards\n";
+			die();
+		}
 
 		//** Create the database
 		if(!$this->db->query('CREATE DATABASE IF NOT EXISTS ?? DEFAULT CHARACTER SET ?', $conf['mysql']['database'], $conf['mysql']['charset'])) {
diff --git a/install/lib/update.lib.php b/install/lib/update.lib.php
index 9fb57cb655862c26c8a6b6ad3212cf2d85f4ce97..a6bb42d2d4cbda15137bd6f540958adf21d60756 100644
--- a/install/lib/update.lib.php
+++ b/install/lib/update.lib.php
@@ -125,7 +125,12 @@ function updateDbAndIni() {
 
 	//* check sql-mode
 	$check_sql_mode = $inst->db->queryOneRecord("SELECT @@sql_mode");
-	if ($check_sql_mode['@@sql_mode'] != '' && $check_sql_mode['@@sql_mode'] != 'NO_ENGINE_SUBSTITUTION') die('Wrong SQL-mode. You should use NO_ENGINE_SUBSTITUTION');
+	if ($check_sql_mode['@@sql_mode'] != '' && $check_sql_mode['@@sql_mode'] != 'NO_ENGINE_SUBSTITUTION') {
+		echo "Wrong SQL-mode. You should use NO_ENGINE_SUBSTITUTION. Add\n\n";
+		echo "    sql-mode=\"NO_ENGINE_SUBSTITUTION\"\n\n";
+		echo"to the mysqld-section in /etc/mysql/my.cnf and restart mysqld afterwards\n";
+		die();
+	}
 
 	//* Update $conf array with values from the server.ini that shall be preserved
 	$tmp = $inst->db->queryOneRecord("SELECT * FROM ?? WHERE server_id = ?", $conf["mysql"]["database"] . '.server', $conf['server_id']);
diff --git a/install/uninstall.php b/install/uninstall.php
index 198a145a5ad7ef2e0fd1f89226f5591f73485398..c565d4653d71c2667dfc6c8e6cef70fcfb502450 100644
--- a/install/uninstall.php
+++ b/install/uninstall.php
@@ -36,7 +36,7 @@ error_reporting(E_ALL|E_STRICT);
 
 require_once "/usr/local/ispconfig/server/lib/config.inc.php";
 require_once "/usr/local/ispconfig/server/lib/app.inc.php";
-require "/usr/local/ispconfig/server/mysql_clientdb.conf";
+require "/usr/local/ispconfig/server/lib/mysql_clientdb.conf";
 
 //** The banner on the command line
 echo "\n\n".str_repeat('-', 80)."\n";
@@ -51,7 +51,7 @@ echo " _____ ___________   _____              __ _         ____
 echo "\n".str_repeat('-', 80)."\n";
 echo "\n\n>> Uninstall  \n\n";
 
-echo "Are you sure you want to uninsatll ISPConfig? [no]";
+echo "Are you sure you want to uninstall ISPConfig? [no]";
 $input = fgets(STDIN);
 $do_uninstall = rtrim($input);
 
@@ -62,11 +62,11 @@ if($do_uninstall == 'yes') {
 
 	$link = mysqli_connect($clientdb_host, $clientdb_user, $clientdb_password);
 	if (!$link) {
-		echo "Unable to connect to the database'.mysql_error($link)";
+		echo "Unable to connect to the database. mysql_error($link)";
 	} else {
-		$result=mysqli_query($link,"DROP DATABASE ".$conf['db_database']."';");
+		$result=mysqli_query($link,"DROP DATABASE ".$conf['db_database'].";");
 		if (!$result) echo "Unable to remove the ispconfig-database ".$conf['db_database']." ".mysqli_error($link)."\n";
-		$result=mysqli_query($link,"DROP USER '".$conf['db_user'] ."';");
+		$result=mysqli_query($link,"DROP USER '".$conf['db_user']."'@'".$conf['db_host']."';");
 	        if (!$result) echo "Unable to remove the ispconfig-database-user ".$conf['db_user']." ".mysqli_error($link)."\n";
 	}
 	mysqli_close($link);
diff --git a/interface/web/admin/form/server_ip.tform.php b/interface/web/admin/form/server_ip.tform.php
index 49a59de1623dedb83af3a5a041191bbc8c13dc65..cd7190ebc6923c74d82f8abddd3aa2421e8f381f 100644
--- a/interface/web/admin/form/server_ip.tform.php
+++ b/interface/web/admin/form/server_ip.tform.php
@@ -121,7 +121,7 @@ $form["tabs"]['server_ip'] = array (
 		'ip_address' => array (
 			'datatype' => 'VARCHAR',
 			'formtype' => 'TEXT',
-			'validators' => array (  0 => array ( 'type' => 'CUSTOME', 'class' => 'validate_server', 'function' => 'check_server_ip',
+			'validators' => array (  0 => array ( 'type' => 'CUSTOM', 'class' => 'validate_server', 'function' => 'check_server_ip',
 					'errmsg'=> 'ip_error_wrong'),
 				1 => array ( 'type' => 'UNIQUE',
 					'errmsg'=> 'ip_error_unique'),