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Networks Overview of a Network Email Web Ftp Newsgroups.

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Presentation on theme: "Networks Overview of a Network Email Web Ftp Newsgroups."— Presentation transcript:

1 Networks Overview of a Network Email Web Ftp Newsgroups

2 The Network Structure A network is a bunch of computers and other hardware connected together The Local Area Network The outside network

3 Topology

4 Common Uses of a Network Email Web access File transfer Newsgroups Remote access

5 The Internet A global network sharing resources World Wide Web (WWW) Email File transfer

6 World Wide Web (WWW) Web browser like Netscape used to navigate web sites Easy to navigate and find information due to the hyper linked nature Netscape, lynx and Internet Explorer

7 Email What is email? Mail readers – pine Other mail readers – mutt, elm

8 Proxy Server What is a proxy server? Need for proxy Setting up proxy in Netscape Setting up proxy for lynx Differences between local sites and outside ones

9 File Transfer Protocol (FTP) Transfer files to and from a computer Bare–bones ftp program Alternatives like ncftp

10 Example FTP Session STEP BY STEP 1. Starting FTP 2. Logging in – User ID and password – Anonymously 3. Transferring files 4. A few features 5. Logging Out

11 Newsgroups What is a newsgroup News reader tin Other news readers like pine, slrn

12 News Agent Tin STEP BY STEP 1. Export the environment variable NNTPSERVER 2. Starting tin 3. Subscribing to newsgroups 4. Posting a sample message

13 Remote Access What it means Telnet and ssh Putty client on Windows Remote execution

14 Useful Resources Online documentation to almost everything http://docs.cse.iitb.ac.in:8080 http://docs.cse.iitb.ac.in:8080 Computer Center’s User Guide http://www.cc.iitb.ac.in/userman/user_man.html http://www.cc.iitb.ac.in/userman/user_man.html A large collection of online books, documents and tutorials http://tilak.ee.iitb.ac.in http://tilak.ee.iitb.ac.in A nice FAQ http://www.cse.iitb.ac.in/cslabs/swlab/faq.html http://www.cse.iitb.ac.in/cslabs/swlab/faq.html

15 Useful Resources (Cont …) A large collection of online books, documents and tutorials http://tilak.ee.iitb.ac.in http://tilak.ee.iitb.ac.in Tilak FTP Search http://tilak.ee.iitb.ac.in/ftpsearch http://tilak.ee.iitb.ac.in/ftpsearch Anonymous FTP sites – ftp://ftp.cse.iitb.ac.in ftp://ftp.cse.iitb.ac.in – ftp://ftp.cc.iitb.ac.in ftp://ftp.cc.iitb.ac.in – ftp://ftp.it.iitb.ac.in ftp://ftp.it.iitb.ac.in

16 Summary What of a Network Network Topology The Internet Proxy Server World Wide Web Step by Step procedures Email FTP Newsgroups Remote access covering Telnet and ssh A few useful local sites

17

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