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HTTP pipelining further reduces lag time, allowing clients to send multiple requests before waiting for each response.
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HTTP and pipelining
For HTTP pipelining, see HTTP pipelining.
Polipo is a web proxy that does HTTP 1. 1 pipelining well, so it can enhance TOR's communication latency or lag.
HTTP pipelining is a technique in which multiple HTTP requests are sent on a single TCP connection without waiting for the corresponding responses.
Since it is usually possible to fit several HTTP requests in the same TCP packet, HTTP pipelining allows fewer TCP packets to be sent over the network, reducing network load.
HTTP pipelining requires both the client and the server to support it.
HTTP / 1. 1 conforming servers are required to support pipelining.
All other browsers HTTP pipelining is disabled or not implemented.
Other application development libraries that support HTTP pipelining include:
* Perl modules providing client support for HTTP pipelining are HTTP :: Async and the LWPng ( libwww-perl New Generation ) library.
* The Microsoft. NET Framework 3. 5 supports HTTP pipelining in the module.
* Subversion ( SVN ) has optional support for HTTP pipelining with the serf WebDAV access module ( the default module, neon does not have pipelining support ).
* Microsoft Message Queuing on Windows Server 2003 utilises pipelining on HTTP by default, and can be configured to use it on HTTPS.
* IBM CICS 3. 1 supports HTTP pipelining within its client.
Testing tools which support HTTP pipelining include:
it: HTTP pipelining
hu: HTTP pipelining
ru: HTTP pipelining
HTTP and further
In 1994 Tim Berners-Lee decided to constitute the World Wide Web Consortium ( W3C ) to regulate the further development of the many technologies involved ( HTTP, HTML, etc.
These trades are reciprocal: by looking at the referrer header of the HTTP requests, a TGP owner knows where their traffic comes from ; a site that doesn't provide enough visitors will be excluded from further trades.
HTTP and reduces
* HTTP compression: reduces amount of data to be transferred for HTTP objects by utilizing gzip compression available in all modern web browsers.
HTTP and time
On a site that has sensitive information somewhere on it, every time that site is accessed with HTTP instead of HTTPS, the user and the session will get exposed.
Web browsers can then use the local Squid cache as a proxy HTTP server, reducing access time as well as bandwidth consumption.
Information about the request, including client IP address, request date / time, page requested, HTTP code, bytes served, user agent, and referrer are typically added.
Protocol version HTTP / 1. 1 makes it possible to reuse the same TCP session for a sequence of service requests and responses ( a sequence of file transfers ) in view to reduce the session establishment time, while HTTP / 1. 0 only allows a single request and response during one TCP session.
However, this transport layer session mechanism should not be confused with a so-called HTTP session, since it does not last a sufficiently long time, and does not provide application level interactive services such as dynamic web pages.
Unlike HTTP ( and similar protocols ), either end of the connection can send a frame at any time, and ' questions ' and ' replies ' can be interleaved easily.
Their idea was to use the new standards of the Web such as HTTP and ( later ) XML to allow software applications to communicate with one another in real time.
Or, in the case of a client connected via HTTP, until the client fails to send a request for some time (' ping ' messages are sent every thirty seconds or so ).
Because latency is so important, the HTTP protocol and HTML markup language were invented to reduce the rendering time of hypertext over the internet.
A visit is a series of HTTP requests submitted by a visitor with the maximum time between requests not exceeding a certain amount configured by the webmaster, which is typically set at 30 minutes.
Apache Custom Log Format can be customized to log most HTTP parameters, including request processing time and the size of the request itself.
* In HTTP persistent connections, the web server saves opened connections ( which consume CPU time and memory ).
At the same time, he was a co-founder of the Apache Software Foundation, and made many contributions to the early development of the Apache HTTP Server.
However, some critics argue that this is not the full story, noting that Apache HTTP Server, for example, had a much larger market share than Microsoft IIS, yet Apache had traditionally had fewer ( and generally less serious ) security vulnerabilities than IIS, at the time.
This decouples the lifetime of the SOAP request / response interaction from the lifetime of the HTTP request / response protocol, thus enabling long-running interactions that can span arbitrary periods of time.
HTTP and allowing
Internet Security Systems was widely criticized for allowing less than eight hours before disclosing details of a vulnerability in the Apache HTTP Server.
Many web sites that serve SVG images, such as Wikipedia, also provide the images in a raster format, either automatically by HTTP content negotiation or by allowing the user directly to choose the file.
Services such as ImageShack can download files on BitTorrent for the user, allowing them to download the entire file by HTTP once it is finished.
Several implementations also start a basic HTTP server on port 5800 + N to provide a VNC viewer as a Java applet, allowing easy connection through any Java-enabled web browser.
Moreover, HTTP 1. 0 and later protocols support a rich set of caching primitives, allowing content to be stored closer to the user, in both browser-caches and ISP proxy-caches, all to reduce latency.
HTTP and clients
The " Content-Encoding "/" Accept-Encoding " and " Transfer-Encoding "/" TE " headers in HTTP / 1. 1 allow clients to optionally receive compressed HTTP responses and ( less commonly ) to send compressed requests.
HTTP is designed to permit intermediate network elements to improve or enable communications between clients and servers.
HTTP proxy servers at private network boundaries can facilitate communication for clients without a globally routable address, by relaying messages with external servers.
A request line containing only the path name is accepted by servers to maintain compatibility with HTTP clients before the HTTP / 1. 0 specification in RFC 1945.
The primary function of a web server is to deliver web pages on the request to clients using the Hypertext Transfer Protocol ( HTTP ).
While the primary function is to serve content, a full implementation of HTTP also includes ways of receiving content from clients.
* Web server, a server that HTTP clients connect to in order to send commands and receive responses along with data contents
This feature utilizes HTTP / 1. 1 to consolidate multiple HTTP requests from multiple clients into a single TCP socket to the back-end servers.
Identification of clients for authorization purposes can be achieved using popular HTTP security methods.
As an alternative to the TCP transport, the XMPP community has also developed an HTTP transport for web clients as well as users behind restricted firewalls.
The binding method, implemented using Bidirectional-streams Over Synchronous HTTP ( BOSH ), allows servers to push messages to clients as soon as they are sent.
Because the client uses HTTP, most firewalls allow clients to fetch and post messages without any hindrances.
The same Squid server could act as a classical web cache, caching HTTP requests from clients within the business ( i. e. employees accessing the internet from their workstations ), so accelerating web access and reducing bandwidth demands.
It was one of the first clients to make use of the then-new HTTP header to support this feature.
Category: HTTP clients
Also introduced with CICS TS 3. 1 was the capability for CICS applications to act as HTTP clients.
IPP uses the traditional client-server model, with clients sending IPP request messages with the MIME media type " application / ipp " in HTTP POST requests to an IPP printer.
Category: HTTP clients
It includes classes that implement FTP and HTTP clients and support DNS lookups.
** Network protocol clients: AirPlay / AirTunes, UPnP, SMB / SAMBA / CIFS, AFP, DAAP, Zeroconf / Avahi / Bonjour, NFS, HTTP, HTTPS, FTP, RTSP ( RTSPU, RTSPT ), MMS ( MMSU, MMST ), Podcasting, TCP, UDP, SFTP, RTP and RTMP ( including RTMP, RTMPT, RTMPE, RTMPTE, RTMPS ), DHCP, NTP
Category: HTTP clients
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