Use this chart to calculate BMI using height values in feet (inches) and weight in stone. This chart covers the BMI range, 19 to 35. Breaking news on climate change, the environment and other aspects of Earth's natural history.
DupeZap (was DupeZap Plus) is a modern duplicate finder with a stylish interface, is easy to use, and is powerful. It is extremely fast, and scans your computer accurately.
A Chinese private company has successfully launched a carrier rocket for the first time from the Jiuquan Satellite Launch Center in northwest China at 1 p.m. China 2019/07/25 09:52:49 February 25 2021 21:12:33. United States 2009 – Calendar with American holidays. Yearly calendar showing months for the year 2009. Iffmpeg 3 9 6 – convert multimedia files between formats. Calendars – online and print friendly – for any year and month. S.O.S MATHematics home page. Do you need more help? Please post your question on our S.O.S. Mathematics CyberBoard.
Features
- Search for any file:
- Scan for Photos and iTunes duplicate files
- Find any duplicate file type (PDFs, images, movies, etc..)
- Search for duplicate folders
- Scan anywhere:
- Search in your hard drive
- Scan any mounted disk (external hard drives, USB keys, etc..)
- Search in multiple locations at the same time, and enable additional features that help you in the cleaning of duplicates
- Easily select duplicate files:
- Result organized based on file types
- Result organized based on path of files (if search was performed in multiple locations)
- Automatic marking for a fast remotion
- Several marking options (mark oldest, newest, etc..) available for single locations or for all found duplicates
- Multiple files preview
- Safely delete or move marked duplicates:
- Delete the marked duplicates
- Move them to a folder instead of deleting them
- Replace the removed files with hard links, if desired
- Restore the removed (or moved) items if a mistake was made
- Additional features:
- iTunes 'Dead' track report
- Empty folders report
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- Export the result to consult it in a spreadsheet app
- And much more
This document has been superseded. In 2014, RFC2616 was replaced by multiple RFCs (7230-7237). See IETF Documents for more information.
Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the 'Internet Official Protocol Standards' (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
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Copyright Notice
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Copyright (C) The Internet Society (1999). Seasons 1 3 3. All Rights Reserved.
Dupezap 4 1 17 Commentary
Abstract
The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems. It is a generic, stateless, protocol which can be used for many tasks beyond its use for hypertext, such as name servers and distributed object management systems, through extension of its request methods, error codes and headers [47]. A feature of HTTP is the typing and negotiation of data representation, allowing systems to be built independently of the data being transferred.
HTTP has been in use by the World-Wide Web global information initiative since 1990. This specification defines the protocol referred to as 'HTTP/1.1', and is an update to RFC 2068 [33].
Table of Contents
- Introduction .. 1
- Purpose .. 1.1
- Requirements .. 1.2
- Terminology .. 1.3
- Overall Operation .. 1.4
- Notational Conventions and Generic Grammar .. 2
- Augmented BNF .. 2.1
- Basic Rules .. 2.2
- Protocol Parameters .. 3
- HTTP Version .. 3.1
- Uniform Resource Identifiers .. 3.2
- General Syntax .. 3.2.1
- http URL .. 3.2.2
- URI Comparison .. 3.2.3
- Date/Time Formats .. 3.3
- Full Date .. 3.3.1
- Delta Seconds .. 3.3.2
- Character Sets .. 3.4
- Missing Charset .. 3.4.1
- Content Codings .. 3.5
- Transfer Codings .. 3.6
- Chunked Transfer Coding .. 3.6.1
- Media Types .. 3.7
- Canonicalization and Text Defaults .. 3.7.1
- Multipart Types .. 3.7.2
- Product Tokens .. 3.8
- Quality Values .. 3.9
- Language Tags .. 3.10
- Entity Tags .. 3.11
- Range Units .. 3.12
- HTTP Message .. 4
- Message Types .. 4.1
- Message Headers .. 4.2
- Message Body .. 4.3
- Message Length .. 4.4
- General Header Fields .. 4.5
- Request .. 5
- Request-Line .. 5.1
- Method .. 5.1.1
- Request-URI .. 5.1.2
- The Resource Identified by a Request .. 5.2
- Request Header Fields .. 5.3
- Request-Line .. 5.1
- Response .. 6
- Status-Line .. 6.1
- Status Code and Reason Phrase .. 6.1.1
- Response Header Fields .. 6.2
- Status-Line .. 6.1
- Entity .. 7
- Entity Header Fields .. 7.1
- Entity Body .. 7.2
- Type .. 7.2.1
- Entity Length .. 7.2.2
- Connections .. 8
- Persistent Connections .. 8.1
- Purpose .. 8.1.1
- Overall Operation .. 8.1.2
- Proxy Servers .. 8.1.3
- Practical Considerations .. 8.1.4
- Message Transmission Requirements .. 8.2
- Persistent Connections and Flow Control .. 8.2.1
- Monitoring Connections for Error Status Messages .. 8.2.2
- Use of the 100 (Continue) Status .. 8.2.3
- Client Behavior if Server Prematurely Closes Connection .. 8.2.4
- Persistent Connections .. 8.1
- Method Definitions .. 9
- Safe and Idempotent Methods .. 9.1
- Safe Methods .. 9.1.1
- Idempotent Methods .. 9.1.2
- OPTIONS .. 9.2
- GET .. 9.3
- HEAD .. 9.4
- POST .. 9.5
- PUT .. 9.6
- DELETE .. 9.7
- TRACE .. 9.8
- CONNECT .. 9.9
- Safe and Idempotent Methods .. 9.1
- Status Code Definitions .. 10
- Informational 1xx .. 10.1
- 100 Continue .. 10.1.1
- 101 Switching Protocols .. 10.1.2
- Successful 2xx .. 10.2
- 200 OK .. 10.2.1
- 201 Created .. 10.2.2
- 202 Accepted .. 10.2.3
- 203 Non-Authoritative Information .. 10.2.4
- 204 No Content .. 10.2.5
- 205 Reset Content .. 10.2.6
- 206 Partial Content .. 10.2.7
- Redirection 3xx .. 10.3
- 300 Multiple Choices .. 10.3.1
- 301 Moved Permanently .. 10.3.2
- 302 Found .. 10.3.3
- 303 See Other .. 10.3.4
- 304 Not Modified .. 10.3.5
- 305 Use Proxy .. 10.3.6
- 306 (Unused) .. 10.3.7
- 307 Temporary Redirect .. 10.3.8
- Client Error 4xx .. 10.4
- 400 Bad Request .. 10.4.1
- 401 Unauthorized .. 10.4.2
- 402 Payment Required .. 10.4.3
- 403 Forbidden .. 10.4.4
- 404 Not Found .. 10.4.5
- 405 Method Not Allowed .. 10.4.6
- 406 Not Acceptable .. 10.4.7
- 407 Proxy Authentication Required .. 10.4.8
- 408 Request Timeout .. 10.4.9
- 409 Conflict .. 10.4.10
- 410 Gone .. 10.4.11
- 411 Length Required .. 10.4.12
- 412 Precondition Failed .. 10.4.13
- 413 Request Entity Too Large .. 10.4.14
- 414 Request-URI Too Long .. 10.4.15
- 415 Unsupported Media Type .. 10.4.16
- 416 Requested Range Not Satisfiable .. 10.4.17
- 417 Expectation Failed .. 10.4.18
- Server Error 5xx .. 10.5
- 500 Internal Server Error .. 10.5.1
- 501 Not Implemented .. 10.5.2
- 502 Bad Gateway .. 10.5.3
- 503 Service Unavailable .. 10.5.4
- 504 Gateway Timeout .. 10.5.5
- 505 HTTP Version Not Supported .. 10.5.6
- Informational 1xx .. 10.1
- Access Authentication .. 11
- Content Negotiation .. 12
- Server-driven Negotiation .. 12.1
- Agent-driven Negotiation .. 12.2
- Transparent Negotiation .. 12.3
- Caching in HTTP .. 13
- @@ missing
- Cache Correctness .. 13.1.1
- Warnings .. 13.1.2
- Cache-control Mechanisms .. 13.1.3
- Explicit User Agent Warnings .. 13.1.4
- Exceptions to the Rules and Warnings .. 13.1.5
- Client-controlled Behavior .. 13.1.6
- Expiration Model .. 13.2
- Server-Specified Expiration .. 13.2.1
- Heuristic Expiration .. 13.2.2
- Age Calculations .. 13.2.3
- Expiration Calculations .. 13.2.4
- Disambiguating Expiration Values .. 13.2.5
- Disambiguating Multiple Responses .. 13.2.6
- Validation Model .. 13.3
- Last-Modified Dates .. 13.3.1
- Entity Tag Cache Validators .. 13.3.2
- Weak and Strong Validators .. 13.3.3
- Rules for When to Use Entity Tags and Last-Modified Dates .. 13.3.4
- Non-validating Conditionals .. 13.3.5
- Response Cacheability .. 13.4
- Constructing Responses From Caches .. 13.5
- End-to-end and Hop-by-hop Headers .. 13.5.1
- Non-modifiable Headers .. 13.5.2
- Combining Headers .. 13.5.3
- Combining Byte Ranges .. 13.5.4
- Caching Negotiated Responses .. 13.6
- Shared and Non-Shared Caches .. 13.7
- Errors or Incomplete Response Cache Behavior .. 13.8
- Side Effects of GET and HEAD .. 13.9
- Invalidation After Updates or Deletions .. 13.10
- Write-Through Mandatory .. 13.11
- Cache Replacement .. 13.12
- History Lists .. 13.13
- @@ missing
- Header Field Definitions .. 14
- Accept .. 14.1
- Accept-Charset .. 14.2
- Accept-Encoding .. 14.3
- Accept-Language .. 14.4
- Accept-Ranges .. 14.5
- Age .. 14.6
- Allow .. 14.7
- Authorization .. 14.8
- Cache-Control .. 14.9
- What is Cacheable .. 14.9.1
- What May be Stored by Caches .. 14.9.2
- Modifications of the Basic Expiration Mechanism .. 14.9.3
- Cache Revalidation and Reload Controls .. 14.9.4
- No-Transform Directive .. 14.9.5
- Cache Control Extensions .. 14.9.6
- Connection .. 14.10
- Content-Encoding .. 14.11
- Content-Language .. 14.12
- Content-Length .. 14.13
- Content-Location .. 14.14
- Content-MD5 .. 14.15
- Content-Range .. 14.16
- Content-Type .. 14.17
- Date .. 14.18
- Clockless Origin Server Operation .. 14.18.1
- ETag .. 14.19
- Expect .. 14.20
- Expires .. 14.21
- From .. 14.22
- Host .. 14.23
- If-Match .. 14.24
- If-Modified-Since .. 14.25
- If-None-Match .. 14.26
- If-Range .. 14.27
- If-Unmodified-Since .. 14.28
- Last-Modified .. 14.29
- Location .. 14.30
- Max-Forwards .. 14.31
- Pragma .. 14.32
- Proxy-Authenticate .. 14.33
- Proxy-Authorization .. 14.34
- Range .. 14.35
- Byte Ranges .. 14.35.1
- Range Retrieval Requests .. 14.35.2
- Referer .. 14.36
- Retry-After .. 14.37
- Server .. 14.38
- TE .. 14.39
- Trailer .. 14.40
- Transfer-Encoding .. 14.41
- Upgrade .. 14.42
- User-Agent .. 14.43
- Vary .. 14.44
- Via .. 14.45
- Warning .. 14.46
- WWW-Authenticate .. 14.47
- Security Considerations .. 15
- Personal Information .. 15.1
- Abuse of Server Log Information .. 15.1.1
- Transfer of Sensitive Information .. 15.1.2
- Encoding Sensitive Information in URI's .. 15.1.3
- Privacy Issues Connected to Accept Headers .. 15.1.4
- Attacks Based On File and Path Names .. 15.2
- DNS Spoofing .. 15.3
- Location Headers and Spoofing .. 15.4
- Content-Disposition Issues .. 15.5
- Authentication Credentials and Idle Clients .. 15.6
- Proxies and Caching .. 15.7
- Denial of Service Attacks on Proxies .. 15.7.1
- Personal Information .. 15.1
- Acknowledgments .. 16
- References .. 17
- Authors' Addresses .. 18
- Appendices .. 19
- Internet Media Type message/http and application/http .. 19.1
- Internet Media Type multipart/byteranges .. 19.2
- Tolerant Applications .. 19.3
- Differences Between HTTP Entities and RFC 2045 Entities .. 19.4
- MIME-Version .. 19.4.1
- Conversion to Canonical Form .. 19.4.2
- Conversion of Date Formats .. 19.4.3
- Introduction of Content-Encoding .. 19.4.4
- No Content-Transfer-Encoding .. 19.4.5
- Introduction of Transfer-Encoding .. 19.4.6
- MHTML and Line Length Limitations .. 19.4.7
- Additional Features .. 19.5
- Content-Disposition .. 19.5.1
- Compatibility with Previous Versions .. 19.6
- Changes from HTTP/1 .. 19.6.1
- Compatibility with HTTP/1 .. 19.6.2
- Changes from RFC 2068 .. 19.6.3
- Index .. 20
- Full Copyright Statement .. 21