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Networks

Networks. Overview of a Network Email Web Ftp Newsgroups. The Network Structure. A network is a bunch of computers and other hardware connected together The Local Area Network The outside network. Topology. Common Uses of a Network. Email Web access File transfer Newsgroups

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Networks

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  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 • Starting FTP • Logging in • User ID and password • Anonymously • Transferring files • A few features • Logging Out

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

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

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

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

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

  16. 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 Summary

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