diff --git a/app/Commands/Fail2banDisableCommand.php b/app/Commands/Fail2banDisableCommand.php
index 38219af..3c9b174 100644
--- a/app/Commands/Fail2banDisableCommand.php
+++ b/app/Commands/Fail2banDisableCommand.php
@@ -12,7 +12,7 @@ use LaravelZero\Framework\Commands\Command;
  *  @author Björn Hase, Tentakelfabrik
  *  @license http://opensource.org/licenses/MIT The MIT License
  *  @link https://gitea.tentakelfabrik.de/Tentakelfabrik/mcp
- *  
+ *
  */
 class Fail2banDisableCommand extends Command
 {
@@ -56,7 +56,7 @@ class Fail2banDisableCommand extends Command
 
         unlink(self::DESTINATION_FAIL2BAN_JAIL_DIRECTORY.'/'.$configuration.'.conf');
 
-        exec('service fail2ban restart');
+        system('service fail2ban restart');
         $this->info('Fail2ban...'.$configuration.' disabled');
     }
 }
diff --git a/app/Commands/Fail2banEnableCommand.php b/app/Commands/Fail2banEnableCommand.php
index 5f11c80..52319d5 100644
--- a/app/Commands/Fail2banEnableCommand.php
+++ b/app/Commands/Fail2banEnableCommand.php
@@ -12,7 +12,7 @@ use LaravelZero\Framework\Commands\Command;
  *  @author Björn Hase, Tentakelfabrik
  *  @license http://opensource.org/licenses/MIT The MIT License
  *  @link https://gitea.tentakelfabrik.de/Tentakelfabrik/mcp
- *  
+ *
  */
 class Fail2banEnableCommand extends Command
 {
@@ -63,7 +63,7 @@ class Fail2banEnableCommand extends Command
         }
 
         copy($source, $destination);
-        exec('service fail2ban restart');
+        system('service fail2ban restart');
 
         $this->info('Fail2ban...'.$configuration.' enabled');
     }
diff --git a/app/Commands/LetsEncryptAddCommand.php b/app/Commands/LetsEncryptAddCommand.php
index 8d3ba56..4721f7c 100644
--- a/app/Commands/LetsEncryptAddCommand.php
+++ b/app/Commands/LetsEncryptAddCommand.php
@@ -46,14 +46,13 @@ class LetsEncryptAddCommand extends Command
         // add file for domain
         $saved = [];
 
-        // create flags 
+        // create flags
         foreach($domains as $domain) {
             $domainFlags .= '-d '.$domain.' ';
             $saved[$domain] = '/etc/letsencrypt/live/'.$domain.'/fullchain.pem';
         }
 
-        exec('certbot --non-interactive --agree-tos -m '.$this->argument('email').' --nginx '.$domainFlags, $output);
-        $this->line(implode("\n", $output));
+        system('certbot --non-interactive --agree-tos -m '.$this->argument('email').' --nginx '.$domainFlags);
 
         foreach($saved as $domain => $file) {
             if (file_exists($file)) {
diff --git a/app/Commands/LetsEncryptInstallCommand.php b/app/Commands/LetsEncryptInstallCommand.php
index e4e74e7..7ebe3e5 100644
--- a/app/Commands/LetsEncryptInstallCommand.php
+++ b/app/Commands/LetsEncryptInstallCommand.php
@@ -65,10 +65,7 @@ class LetsEncryptInstallCommand extends Command
 
         $output = [];
         $this->info('LetsEncrypt generate dhparam.pem...');
-        exec('openssl dhparam -out /etc/ssl/certs/dhparam.pem 4096', $ouput);
-
-        // @TODO apt add a Warning for no good, in a later version output will be scanned for helpfull infos
-        $this->line(implode("\n", Install::filterAptMessages($output)));
+        system('openssl dhparam -out /etc/ssl/certs/dhparam.pem 4096', $ouput);
 
         if (Install::isReady('certbot')) {
             $this->info('LetsEncrypt installing...Success! \o/');
diff --git a/app/Commands/LetsEncryptRemoveCommand.php b/app/Commands/LetsEncryptRemoveCommand.php
index 26bf72c..7e4ee54 100644
--- a/app/Commands/LetsEncryptRemoveCommand.php
+++ b/app/Commands/LetsEncryptRemoveCommand.php
@@ -63,9 +63,9 @@ class LetsEncryptRemoveCommand extends Command
                     $errors++;
                 } else {
                     if (is_file($directory)) {
-                        exec('rm '.$directory.' 2>&1', $output);
+                        system('rm '.$directory.' 2>&1');
                     } else {
-                        exec('rm -rf '.$directory.' 2>&1', $output);
+                        system('rm -rf '.$directory.' 2>&1');
                     }
                 }
             }
diff --git a/app/Commands/MariadbInstallCommand.php b/app/Commands/MariadbInstallCommand.php
index d8262a9..703953e 100644
--- a/app/Commands/MariadbInstallCommand.php
+++ b/app/Commands/MariadbInstallCommand.php
@@ -98,25 +98,25 @@ class MariadbInstallCommand extends Command
 
             // make sure root can only access from local
             $this->info('Mariadb make sure root can ony access from local...');
-            exec('sudo mysql -u root -e "DELETE FROM mysql.user WHERE User=\'root\' AND Host NOT IN (\'localhost\', \'127.0.0.1\', \'::1\');"');
+            system('sudo mysql -u root -e "DELETE FROM mysql.user WHERE User=\'root\' AND Host NOT IN (\'localhost\', \'127.0.0.1\', \'::1\');"');
 
             // delete anonymous user
             $this->info('Mariadb delete anonymous user...');
-            exec('sudo mysql -u root -e "DELETE FROM mysql.user WHERE User=\'\';"');
+            system('sudo mysql -u root -e "DELETE FROM mysql.user WHERE User=\'\';"');
 
             // drop test database and anthing familiar
             $this->info('Mariadb drop test and anthing familiar...');
-            exec('sudo mysql -u root -e "DROP DATABASE IF EXISTS test;"');
-            exec('sudo mysql -u root -e "DELETE FROM mysql.db WHERE Db=\'test\' OR Db=\'test_%\';"');
+            system('sudo mysql -u root -e "DROP DATABASE IF EXISTS test;"');
+            system('sudo mysql -u root -e "DELETE FROM mysql.db WHERE Db=\'test\' OR Db=\'test_%\';"');
 
             // remove plugin for root and set password
             $this->info('Mariadb add password for root...');
 
             if ($version === '10.4') {
-                exec('sudo mysql -u root -e "ALTER USER root@localhost IDENTIFIED VIA mysql_native_password USING PASSWORD(\''.$password.'\'); FLUSH PRIVILEGES;"');
+                system('sudo mysql -u root -e "ALTER USER root@localhost IDENTIFIED VIA mysql_native_password USING PASSWORD(\''.$password.'\'); FLUSH PRIVILEGES;"');
             } else {
-                exec('sudo mysql -u root -e "UPDATE mysql.user SET Password=PASSWORD(\''.$password.'\') WHERE User=\'root\'; FLUSH PRIVILEGES;"');
-                exec('sudo mysql -u root -e "UPDATE mysql.user SET plugin=\'\' where User=\'root\';"');
+                system('sudo mysql -u root -e "UPDATE mysql.user SET Password=PASSWORD(\''.$password.'\') WHERE User=\'root\'; FLUSH PRIVILEGES;"');
+                system('sudo mysql -u root -e "UPDATE mysql.user SET plugin=\'\' where User=\'root\';"');
             }
 
             file_put_contents(self::MCP_LOG_FILE, "Mariadb installed\nuser: root\npassword: $password\n--\n", FILE_APPEND);
diff --git a/app/Commands/NginxInstallCommand.php b/app/Commands/NginxInstallCommand.php
index 34234c9..352ab7f 100644
--- a/app/Commands/NginxInstallCommand.php
+++ b/app/Commands/NginxInstallCommand.php
@@ -77,8 +77,7 @@ class NginxInstallCommand extends Command
             $output = [];
 
             $this->info('Nginx adding ufw rules...');
-            exec('ufw allow "Nginx Full" 2>&1', $output);
-            $this->line(implode("\n", $output));
+            system('ufw allow "Nginx Full"');
 
             $this->info('Nginx installing...Success! \o/');
         } else {