env('PDNS_API_URL', 'http://127.0.0.1:8081'), 'api_key' => env('PDNS_API_KEY', ''), 'server' => env('PDNS_SERVER', 'localhost'), 'timeout' => (int) env('PDNS_TIMEOUT', 5), 'slave_masters' => array_filter(array_map('trim', explode(',', env('PDNS_SLAVE_MASTERS', '167.86.66.168')))), 'slave_api_url' => env('PDNS_SLAVE_API_URL', ''), 'slave_api_key' => env('PDNS_SLAVE_API_KEY', ''), 'slave_server' => env('PDNS_SLAVE_SERVER', 'localhost'), ];