HTTP
The HyperText Transfer Protocol (HTTP), defined in the RFC1945, is an Application-level protocol for hypermedia information systems.
Request Packet
Method | Request URI | HTTP version |
Method | the method to use |
Request URI | Order (for example: path & name of the HTML-page) |
HTTP version | HTTP version, that should be used |
Response Packet
HTTP version | Status code | Reason phrase |
HTTP version | HTTP version, that is used |
Status code | Status code with 3 places for this order |
Reason phrase | text description (for example: HTML-page) |
HTTP reply code format:
Code | Description |
1xx | Informational |
2xx | Successful |
3xx | Redirection |
4xx | Client Error |
5xx | Server Error |
HTTP reply codes:
Code | Description |
100 | Continue |
101 | Switching Protocols |
200 | OK |
201 | Created |
202 | Accepted |
203 | Non-Authoritative Information |
204 | No Content |
205 | Reset Content |
206 | Partial Content |
300 | Multiple Choises |
301 | Moved Permanently |
302 | Moved Temporarily |
303 | See Other |
304 | Not Modified |
305 | Use Proxy |
306 | (unused, but reserved) |
307 | Temporary Redirect |
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 |
500 | Internal Server Error |
501 | Not Implemented |
502 | Bad Gateway |
503 | Service Unavailable |
504 | Gateway Time-out |
505 | HTTP Version Not Supported |