Warning: mysqli_connect(): php_network_getaddresses: getaddrinfo for suf-mysql failed: Temporary failure in name resolution in /var/www/html/coduri/server.php on line 6

Fatal error: Uncaught mysqli_sql_exception: php_network_getaddresses: getaddrinfo for suf-mysql failed: Temporary failure in name resolution in /var/www/html/coduri/server.php:6 Stack trace: #0 /var/www/html/coduri/server.php(6): mysqli_connect('suf-mysql', 'suf', Object(SensitiveParameterValue), 'suf') #1 /var/www/html/index.php(3): include_once('/var/www/html/c...') #2 {main} thrown in /var/www/html/coduri/server.php on line 6