'Client sending mail server' diaporamas de présentation

Midterm Review

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Midterm Review

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UDP Server

UDP Server. import java.io.*; import java.net.*; class UDPServer { public static void main(String argv[]) throws Exception { String sentence; String capitalizedSentence; byte[] receiveData = new byte[1024]; byte[] sendData = new byte[1024];

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EEC-484/584 Computer Networks

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Computer Networks 364 Protocols

Computer Networks 364 Protocols. John Morris Computer Science/Electrical Engineering University of Auckland Email: jmor159@cs.auckland.ac.nz URL: http:/www.cs.auckland.ac.nz/~jmor159. Protocols - HTTP. HyperText Transfer Protocol (HTTP) WWW application layer protocol

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Computer Networks 364 Protocols

Computer Networks 364 Protocols. John Morris Computer Science/Electrical Engineering University of Auckland Email: jmor159@cs.auckland.ac.nz URL: http:/www.cs.auckland.ac.nz/~jmor159. Protocols - HTTP. HyperText Transfer Protocol (HTTP) WWW application layer protocol

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Chapter 2 Application Layer

Chapter 2 Application Layer. Computer Networking: A Top Down Approach , 5 th edition. Jim Kurose, Keith Ross Addison-Wesley, April 2009. 2.1 Principles of network applications app architectures app requirements 2.2 Web and HTTP (Continued) 2.4 Electronic Mail SMTP, POP3, IMAP 2.5 DNS.

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Chapter 2 Application Layer

CPE 400 / 600 Computer Communication Networks. Lecture 5. Chapter 2 Application Layer. slides are modified from J. Kurose & K. Ross. 2.1 Principles of network applications 2.2 Web and HTTP 2.3 FTP 2.4 Electronic Mail SMTP, POP3, IMAP 2.5 DNS 2.6 P2P applications

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Review of Previous Lecture

Review of Previous Lecture. Principles of app layer protocols clients and servers app requirements Web and HTTP FTP. Announcement. All got partners and IP addresses ? Should complete at least part I by the end of this week

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Application Protocols

Application Protocols. Outline. FTP Email DNS. FTP server. local file system. FTP: the File Transfer Protocol. file transfer. FTP user agent. user at host. remote file system. ftp: RFC 959 ftp client contacts ftp server, who listens at port 21

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Reminder

Homework 1 for Wednesday: Problems #3-5,11,16,18-20 Half of the problems will be graded Feel free to send me email. Reminder. 2.1 Principles of app layer protocols 2.2 Web and HTTP 2.3 FTP 2.4 Electronic Mail SMTP, POP3, IMAP 2.5 DNS. 2.6 Socket programming with TCP

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Trying out HTTP (client side) for yourself

1. Telnet to your favorite Web server:. Trying out HTTP (client side) for yourself. Opens TCP connection to port 80 (default HTTP server port) at cis.poly.edu. Anything typed in sent to port 80 at cis.poly.edu. telnet cis.poly.edu 80. 2. Type in a GET HTTP request:.

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Trying out HTTP (client side) for yourself

1. Telnet to your favorite Web server:. Trying out HTTP (client side) for yourself. Opens TCP connection to port 80 (default HTTP server port) at cis.poly.edu. Anything typed in sent to port 80 at cis.poly.edu. telnet cis.poly.edu 80. 2. Type in a GET HTTP request:.

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Layer Aplikasi

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ECE5650

ECE5650. FTP, Email, DNS, and P2P. Recap: HTTP and Web. HTTP request msg format and method types: GET, POST, HEAD, PUT, DELATE HTTP response msg format and status codes Cookies and their usage: Persistent vs Non-Persistent cookies Web cache or proxy server:

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Application Layer Lecture 5 Imran Ahmed University of Management & Technology

Application Layer Lecture 5 Imran Ahmed University of Management & Technology. Agenda. Principles of network applications Web and HTTP FTP Electronic Mail SMTP, POP3, IMAP DNS P2P file sharing Socket programming with TCP Socket programming with UDP.

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Chapter 2: outline

2.1 principles of network applications 2.2 Web and HTTP 2.3 electronic mail SMTP, POP3, IMAP 2.4 DNS. 2.5 P2P applications 2.6 video streaming and content distribution networks 2.7 socket programming with UDP and TCP. Chapter 2: outline. non-persistent HTTP issues:

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Chapter 2 outline

2.1 Principles of app layer protocols 2.2 Web and HTTP 2.3 FTP 2.4 Electronic Mail 2.5 DNS. 2.6 Socket programming with TCP 2.7 Socket programming with UDP 2.8 Building a Web server 2.9 Content distribution Network Web caching Content distribution networks P2P file sharing.

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Lecture 7 Application Layer (FTP, e-mail)

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Chapter 2: Application layer

Chapter 2: Application layer. 2.1 Web and HTTP 2.2 FTP. 2- 1. FTP: the file transfer protocol. transfer file to/from remote host client/server model client: side that initiates transfer (either to/from remote) server: remote host ftp: RFC 959 ftp server: port 21. FTP user interface.

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