What Does HTTP Stand For?
HTTP is a type of Application Layer protocol. It is used for different types of information systems. Application Layer is a term that is used to describe different protocols and different methods that are used in computer networking. Specifically, HTTP is a type of Application Layer protocol that is a request-response type of client-server interaction over computers.
HTTP is an acronym that stands for Hypertext Transfer Protocol. When HTTP is used on the Internet, Internet browsers act as clients and the application that is hosting the website acts as the server.
The client, or browser, then submits a series of different HTTP requests. These requests are called the user agents. The server then frequently provides the clients with the requests, or with the user agents.
Although individuals frequently think that HTTP is restricted to the TCP/IP, it can be implemented over any protocol on the Internet. The TCP/IP is simply the most popular protocol that HTTP is used in connection with, but not the only one.
Versions
There have been several different versions of HTTP throughout the year. The first version was called HTTP/1.0. This was changed and improved into HTTP/1.1. One of the problems with the original version that HTTP/1.1 improved was that the original version used separate connections to the same server for each document.
On the other hand, HTTP/1.1 used the same connection to download documents. This greatly improved the speed of HTTP. HTTP/1.1 is the current standard for HTTP. As HTTP became more and more popular, more browsers scrambled to make sure that their system was compatible. Thus, in a short time, such browsers as Netscape, Mosaic, Lynx, and Internet Explorer quickly changed their browsers to support HTTP.
How Does HTTP Operate?
Most of HTTP operates through what are known as “HTTP sessions.” An HTTP session is defined as a series of network requests and then responses. In an HTTP session, a client initiates a request from the server. When the client initiates a request from the server, he or she initiates a Transmission Control Protocol connection with a specific port on the host.
The server waits on the port for any message, and then interprets the message that the client sent. The request message is composed of the following parts: a request line, headers, an empty line, and an optional message body. Once the server receives the request, a status line is sent back. Along with the status line, a message is sent back from the server. The server may send back a message such as the request that the client sent, or a message such as an error message.
Ensuring Security
Security is an important concern for any type of program or protocol that occurs on the Internet. There are currently two different methods to make sure that the HTTP connection is a secure connection. These two methods are the HTTPS URI scheme, and the HTTP 1.1 Upgrade header.
The HTTPS is a type of URI scheme that is almost identical to the normal HTTP schemes. However, the HTTPS tells that browser that there is another level of encryption on the website. This additional level of encryption helps protect users. Colleges, banks, and online shopping sites often use “HTTPS” when individuals have to enter personal information, or financial information.
Within the HTTP 1.1 Upgrade header, the client can actually request that his or her connection be upgraded to something more secure. Once the client makes this request, the connection is usually upgraded to Transport Layer Security. Transport Layer Security is a type of cryptographic protocol, and it offers an additional layer of security over the Internet.