Computer network HTTP: status code

• HTTP response message
  • + Version of a simple phrase HTTP status code + interpret status codes: Status Line
  • status code:
    • 1xx represent notification information, such as the request is being processed or received
    • 2xx indicates success, such as accepting or know
    • 3xx redirect representation, such as to fulfill the request must also take further action
    • 4xx error indicates that the client, such as the request has the wrong syntax or can not be completed
    • 5xx error indicates that the server, such as server failure can not fulfill the request

• Common status codes

  State line	Explanation
  HTTP/1.1 202 Accepted	accept
  HTTP/1.1 400 Bad Request	bad Request
  HTTP/1.1 404 Not Found	Can not find
  HTTP/1.1 301 Moved Permanently	Permanent transfer of the