> redis-cli
127.0.0.1:6379 > ping
PONG

'default' => env('CACHE_DRIVER', 'redis'),

'redis' => [

    'client' => 'predis',

    'default' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'password' => env('REDIS_PASSWORD', null),
        'port' => env('REDIS_PORT', 6379),
        'database' => env('REDIS_DB', 0),
    ],

    'cache' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'password' => env('REDIS_PASSWORD', null),
        'port' => env('REDIS_PORT', 6379),
        'database' => env('REDIS_CACHE_DB', 1),
    ],
]

// ************* this works
    Redis::set('testFromRedisSet', 'RedisSet');

    // ************* none of these work...
    Cache::add('testFromCachePut', 'CachePut', 60);
    Cache::remember('testFromCacheRemember', 60, function() {
       return "CacheRemember";
    });
    Cache::rememberForever('testFromCacheRememberForever', function() {
        return "CacheRememberForever";
    });