Error Document 401
Client Error
400:Bad Request 401:Unauthorized
402:Payment Required 403:Forbidden
404:Not Found 405:Method Not Allowed
406:Not Acceptable 407:Proxy Authentication Required
408:Request Time-out 409:Conflict 410:Gone
411:Length Required 412:Precondition Failed
413:Request Entity Too Large
414:Request-URI Too Large 415:Unsupported Media Type
416:Requested range not satisfiable
417:Expectation Failed
Server Error
500:Internal Server Error 501:Not Implemented
502:Bad Gateway 503:Service Unavailable
504:Gateway Time-out 505:HTTP Version not supported