diff --git a/app/Commands/MariadbClientInstallCommand.php b/app/Commands/MariadbClientInstallCommand.php
index 339e75a..0c59258 100644
--- a/app/Commands/MariadbClientInstallCommand.php
+++ b/app/Commands/MariadbClientInstallCommand.php
@@ -82,7 +82,7 @@ class MariadbClientInstallCommand extends Command
             system('rsync -rv --include="ca-cert.pem" --include="client-cert.pem" --include="client-key.pem" --exclude="*" '.$this->argument('remove_user').'@'.$this->argument('remove_host').':/etc/mysql/ssl/ /etc/mysql/ssl/');
 
             // checking if certificates are exists from remote server
-            if (!file_exist('/etc/mysql/ssl/ca-cert.pem') || !file_exist('/etc/mysql/ssl/client-cert.pem') || file_exist('/etc/mysql/ssl/client-key.pem')) {
+            if (!file_exists('/etc/mysql/ssl/ca-cert.pem') || !file_exists('/etc/mysql/ssl/client-cert.pem') || !file_exists('/etc/mysql/ssl/client-key.pem')) {
                 $this->error('Failed! Certificates not found!');
                 exit();
             }
diff --git a/app/Commands/MariadbInstallCommand.php b/app/Commands/MariadbInstallCommand.php
index 7a5475c..8992c46 100644
--- a/app/Commands/MariadbInstallCommand.php
+++ b/app/Commands/MariadbInstallCommand.php
@@ -150,7 +150,7 @@ class MariadbInstallCommand extends Command
         system('openssl rsa -in /etc/mysql/ssl/client-key.pem -out /etc/mysql/ssl/client-key.pem');
         system('openssl x509 -req -in /etc/mysql/ssl/client-req.pem -days 365000 -CA /etc/mysql/ssl/ca-cert.pem -CAkey /etc/mysql/ssl/ca-key.pem -set_serial 01 -out /etc/mysql/ssl/client-cert.pem');
 
-        if (!file_exist('/etc/mysql/ssl/ca-cert.pem') || !file_exist('/etc/mysql/ssl/client-cert.pem') || file_exist('/etc/mysql/ssl/client-key.pem')) {
+        if (!file_exists('/etc/mysql/ssl/ca-cert.pem') || !file_exists('/etc/mysql/ssl/client-cert.pem') || !file_exists('/etc/mysql/ssl/client-key.pem')) {
             $this->error('Failed! Certificates not created!');
             exit();
         }
@@ -175,7 +175,7 @@ ssl-key=/etc/mysql/ssl/client-key.pem');
         system('chmod 644 /etc/mysql/ssl/*cert*');
         system('chmod 644 /etc/mysql/ssl/*key*');
 
-        system('service restart mysql');
+        system('systemctl restart mariadb');
         system('ufw allow mysql');
 
         $this->info('Mariadb remote...Success! \o/');