HTTP is the protocol used to retrieve web pages over the Internet. It uses a request/response model where browsers make requests to web servers using HTTP and receive responses. HTTP 1.1 introduced persistent connections allowing multiple requests to be sent over a single TCP connection, improving efficiency over HTTP 1.0 which required a separate connection for each request. Caching of responses in browsers and proxies improves page load times and reduces server load.
contents
Protocol
Types of protocol
Transmission control protocol (TCP)
internet protocol (IP)
Hyper text transfer protocol (HTTP)
Simple mail transfer protocol (SMTP)
File transfer protocol (FTP)
Layers
protocol:-A protocol is a set of rules for the exchange of data between a terminal and computer or between two computers. Think of protocol as a sort of recommunication agreement about the form in which a message or data is to be sent and receipt is to be acknowledge.
transmission control protocol(TCP):-This protocol ensures the delivery of information packets across network.
internet protocol (IP):-This important protocol is responsible for providing logical addressing called IP address to route information between networks.
hyper text transfer protocol (HTTP):- This protocol is used to access, send and receive Hypertext Markup Language (HTML) files on the Internet.
simple mail transfer protocol(SMTP):-This protocol is used for transferring email between computers.
file transfer protocol(FTP):-FTP is responsible for allowing file to be copied between devices.
layers:-In computer programming, layering is the organization of programming into separate functional components that interact in some sequential and hierarchical way, with each layer usually having an interface only to the layer above it and the layer below it.
thankyou.
Overview of the FTP protocol.
In the early days of the Internet, applications were mostly restricted to mail transfer (email) and file transfer. FTP (File Transfer Protocol) is one of the first standardized protocols for exchanging binary and text files between hosts.
FTP is rather simple in that it uses a TCP connection for exchanging commands and a data transfer TCP connection for the actual file transfer.
In normal FTP operation, the client opens the control connection to the FTP server while it is up to the server to open data connections for each file transfer. With the upcoming firewalls, this scheme proved to pose a problem since firewalls tend to block incoming TCP connections. Thus a passive mode was defined where the client is responsible to open the data connection to the server.
IP specifies the format of packets, also called #datagrams, and the addressing scheme. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.
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In this PPT i describe internet in details.
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contents
Protocol
Types of protocol
Transmission control protocol (TCP)
internet protocol (IP)
Hyper text transfer protocol (HTTP)
Simple mail transfer protocol (SMTP)
File transfer protocol (FTP)
Layers
protocol:-A protocol is a set of rules for the exchange of data between a terminal and computer or between two computers. Think of protocol as a sort of recommunication agreement about the form in which a message or data is to be sent and receipt is to be acknowledge.
transmission control protocol(TCP):-This protocol ensures the delivery of information packets across network.
internet protocol (IP):-This important protocol is responsible for providing logical addressing called IP address to route information between networks.
hyper text transfer protocol (HTTP):- This protocol is used to access, send and receive Hypertext Markup Language (HTML) files on the Internet.
simple mail transfer protocol(SMTP):-This protocol is used for transferring email between computers.
file transfer protocol(FTP):-FTP is responsible for allowing file to be copied between devices.
layers:-In computer programming, layering is the organization of programming into separate functional components that interact in some sequential and hierarchical way, with each layer usually having an interface only to the layer above it and the layer below it.
thankyou.
Overview of the FTP protocol.
In the early days of the Internet, applications were mostly restricted to mail transfer (email) and file transfer. FTP (File Transfer Protocol) is one of the first standardized protocols for exchanging binary and text files between hosts.
FTP is rather simple in that it uses a TCP connection for exchanging commands and a data transfer TCP connection for the actual file transfer.
In normal FTP operation, the client opens the control connection to the FTP server while it is up to the server to open data connections for each file transfer. With the upcoming firewalls, this scheme proved to pose a problem since firewalls tend to block incoming TCP connections. Thus a passive mode was defined where the client is responsible to open the data connection to the server.
IP specifies the format of packets, also called #datagrams, and the addressing scheme. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.
If you want to purchase the content e-mail me on dulith1989@gmail.com
In this PPT i describe internet in details.
connect me on
Facebook:https://www.facebook.com/Atlovetech
Twitter:https://twitter.com/techguruhost
Google+:https://plus.google.com/u/1/+sumitkumartgh/about
Blog:http://www.techguruhost.in
This ppt will give you information about what is http protocol, who had developed it, how it works, http request and response, features, advantages, disadvantages and brief information about world wide web.
Web Server Technologies I: HTTP & Getting StartedPort80 Software
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Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
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A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Courier management system project report.pdfKamal Acharya
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COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
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This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
2. HyperText Transfer Protocol
HyperText Transfer Protocol,
HyperText Transport Protocol (HTTP) is an application
protocol that is used to retrieve Web pages from remote servers.
All the web browsers use HTTP protocol to communicate with
Web servers over the Internet.
The main goal of the Web is to organize and retrieve
information over the internet.
HyperText (Interlinked documents) is used for this purpose.
Hypertext is a document can link to another document
• HTTP – protocol used to retrieve hypertext
• HTML – Document language or Markup language used to create hypertext
To organize information into a system of linked documents or
objects, we need to be able to retrieve one document to get
started.
3. HyperText Transfer Protocol
To organize information into a system of linked documents or
objects, we need to be able to retrieve one document to get
started.
We can retrieve a hypertext document by “opening a URL”
URL,
Location of a resource on the internet.
e.g.,
http://www.cs.princeton.edu/index.html
– Web browser would open a TCP connection to the Web server at a
machine called www.cs.princeton.edu and immediately retrieve
and display the file called index.html.
Most files on the Web contain images and text and many have
other objects such as audio and video clips, pieces of code, etc.
They also frequently include URLs that point to other files that
may be located on other machines, which is the core of the
“hypertext” part of HTTP and HTML.
4. HyperText Transfer Protocol
When a user select a page to view, browser (the client) fetches
the page from the server using HTTP running over TCP.
HTTP is a request/response protocol, where every message has
the general form
START_LINE <CRLF>
MESSAGE_HEADER <CRLF>
<CRLF>
MESSAGE_BODY <CRLF>
• START_LINE – indicates, whether it is a request or response
Request Messages:
The first line of an HTTP request message specifies three
things: the operation to be performed, the Web page the
operation should be performed on, and the version of HTTP
being used.
START_LINE - GET http://www.xyz.com/index.html HTTP/1.1
6. HyperText Transfer Protocol
Response Messages:
response messages begin with a single START LINE and that
line specifies the version of HTTP being used, a three-digit
code indicating whether or not the request was successful, and
a text string giving the reason for the response.
HTTP/1.1 202 Accepted
or
HTTP/1.1 404 Not Found
or
HTTP/1.1 301 Moved Permanently
Message Header - Location : http://www.xyz1.com/index.html
8. HyperText Transfer Protocol
TCP Connections:
The original version of HTTP (1.0) established a separate TCP
connection for each data item retrieved from the server.
But it is inefficient: connection setup and teardown messages
had to be exchanged between the client and server even if all
the client wanted to do was verify that it had the most recent
copy of a page.
Thus, retrieving a page that included some text and a dozen
icons or other small graphics would result in 13 separate TCP
connections being established and closed.
HTTP 1.1,
Persistent Connection - the client and server can exchange
multiple request/response messages over the same TCP
connection.
9. HyperText Transfer Protocol
Advantages of Persistent Connection,
– eliminate the connection setup overhead.
» thereby reducing the load on the server, the load on the network
caused by the additional TCP packets, and the delay perceived
by the user.
– a client can send multiple request messages down a single TCP
connection.
» TCP’s congestion window mechanism is able to operate more
efficiently. This is because it’s not necessary to go through the
slow start phase for each page.
12. HyperText Transfer Protocol
Caching
Benefits of caching,
• Client - page can be retrieved from a nearby cache can be
displayed much more quickly than if it has to be fetched from
across the world.
• Server - reduces the load on the server
Caching can be implemented on,
User’s Browser - cache recently accessed pages, and simply
display the cached copy if the user visits the same page again.
single site-wide cache - the users within the site most likely
know what machine is caching pages on behalf of the site, and
they configure their browsers to connect directly to the caching
host. This node is sometimes called a proxy.
Middle of the Internet - ISP can cache the pages.