networks overview of a network email web ftp newsgroups
TRANSCRIPT
Networks
Overview of a Network
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 Remote access
The Internet
A global network sharing resources
World Wide Web (WWW)
Email File transfer
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
What is email? Mail readers – pine Other mail readers –
mutt, elm
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
File Transfer Protocol (FTP)
Transfer files to and from a computer
Bare–bones ftp program Alternatives like ncftp
Example FTP Session
STEP BY STEP1. Starting FTP
2. Logging in– User ID and password– Anonymously
3. Transferring files
4. A few features
5. Logging Out
Newsgroups
What is a newsgroup News reader tin Other news readers like
pine, slrn
News Agent Tin
STEP BY STEP1. Export the environment
variable NNTPSERVER
2. Starting tin
3. Subscribing to newsgroups
4. Posting a sample message
Remote Access
What it means Telnet and ssh Putty client on Windows Remote execution
Useful Resources
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 (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
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
