CSE 4225 Network Programming Lecture 4: Socket & Port Application Protocol

Spring – 2015 Solaiman Salvi

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Application Layer Protocols URL, WWW and HTTP

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URL

Some common URL schemes.

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GET /index.html HTTP/1.0 Keyword: Value GET /index.html HTTP/1.0 Accept: text/html, text/plain, image/gif, image/jpeg • User-Agent: Lynx/2.4 libwww/2.1.4 • Host: www.cafeaulait.org • \r\n\r\n Spring'15

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HTTP/1.1 200 OK Date: Mon, 15 Sep 2003 21:06:50 GMT Server: Apache/2.0.40 (Red Hat Linux) Last-Modified: Tue, 15 Apr 2003 17:28:57 GMT Connection: close Content-Type: text/html; charset=ISO-8859-1 Content-length: 107

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A Sample HTML file The rest of the document goes here

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Slides: • https://sites.google.com/site/salvisolaiman/co urses/spring-2015/cse-4225 References: • JNP Chapter 3 • FTP1.jpg & FTP2.jpg

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CSE 4225 Network Programming

Apr 15, 2003 - ... libwww/2.1.4. • Host: www.cafeaulait.org. • \r\n\r\n. Spring'15. CSE 4225 | Network Programming. 11 ... Server: Apache/2.0.40 (Red Hat Linux).
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