BZUPAGES.COM WEB SERVER PRESENTED TO: SIR AHMAD KAREEM

BZUPAGES.COM Web Server The primary function of a web server is to deliver web pages to clients. Deliver the HTML document to the clients. Client initiates the request for specific resource using HTTP. And server responds with the content of that resource, or an error message if unable to do so

BZUPAGES.COM Browser Web server Html file http request http response client server Processing of web page

BZUPAGES.COM Some Important web servers Apache Microsoft IIS Nginx GWS lighttpd

BZUPAGES.COM VendorProductWeb Sites Hosted (millions)Percent Apache 11154% MicrosoftIIS5024% Igor SysoevNginx168% GoogleGWS157% lighttpd 10%

BZUPAGES.COM Market structure

BZUPAGES.COM History of web servers Words first web server In 1989 Tim Berners-Lee proposed to his employer CERN(European Organization for Nuclear Research) a new project, which had the goal of easing the exchange of information between scientists by using a hypertext system As a result of the implementation of this project, in 1990 Berners-Lee wrote two programs: a browser called WorldWideWeb. the world's first web server, later known as “CERN httpd”, which ran on “NeXTSTEP”.

BZUPAGES.COM Between 1991 and 1994 the simplicity and effectiveness of early technologies used to surf and exchange data through the World Wide Web helped to port them to many different operating systems and spread their use among lots of different social groups of people, first in scientific organizations, then in universities and finally in industry. In 1994 Tim Berners-Lee decided to constitute the World Wide Web Consortium to regulate the further development of the many technologies involved (HTTP, HTML, etc.) through a standardization process.

BZUPAGES.COM Alia Ashraf Roll No.07-19

BZUPAGES.COM Common features Virtual hosting Large file support Bandwidth throttling Server-side scripting

BZUPAGES.COM Common features Virtual hosting –To serve many web sites using one IP address. Large file support –To be able to serve files whose size is greater than 2 GB on 32 bit OS.

BZUPAGES.COM Common features Bandwidth throttling –To limit the speed of responses in order to not saturate the network and to be able to serve more clients. Server-side scripting –To generate dynamic web pages, but still keeping web server and web site implementations separate from each other.

BZUPAGES.COM Limitation of Web server A web server has defined load limits It can handle only a limited number of concurrent client connections usually between 2 and 80,000 per IP address.

BZUPAGES.COM Limitation of Web server maximum number of requests per second depending on –its own settings; –the HTTP request type; –content origin (static or dynamic); –the fact that the served content is or is not cached; –the hardware and software limits of the OS where it is working.

BZUPAGES.COM Shafaque Mahmood Roll No.07-02

BZUPAGES.COM IIS Internet Information Services is used to make your computer a web server IIS is installed for developing dynamic website or want to publish website on our own server IIS is used on windows plate form

BZUPAGES.COM IIS IIS takes request from user and executes the required files and sends result back to the user IIS server also provides the services of SMTP

BZUPAGES.COM Advantages of IIS No cost to acquire Easy service management Effortless performance monitoring Robust security

BZUPAGES.COM Disadvantages of IIS Only works with the Windows OS Not a terribly flexible web server Difficult to control how URL's are parsed If using two servers, the server configurations must match exactly

BZUPAGES.COM IIS installation To install IIS you must have your operating systems CD (Win XP or Win 2K). Go to control panel and select "Add Remove Programs". From that window select "Add Remove Windows Components".

BZUPAGES.COM IIS installation After this you can see Internet Information Services checkbox. Select this and press OK. Installation will be started, during this installation it will ask you to give the path of your Windows CD

BZUPAGES.COM IIS installation Select from browse and give the path of Windows CD. After some time the installation process will be done. And IIS can be used.