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Internet Overview Part II

Internet Overview Part II. Mrs. Wilson Internet Basics & WAY Beyond!. HTTP--Hypertext Transfer Protocol. Protocol used to transfer web pages from a web server to a client. (YOU!!) The web client is actually the web browser.

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Internet Overview Part II

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  1. Internet Overview Part II Mrs. WilsonInternet Basics & WAY Beyond!

  2. HTTP--Hypertext Transfer Protocol • Protocol used to transfer web pages from a web server to a client. (YOU!!) The web client is actually the web browser. • HTTP is the set of rules required to exchange files (text, images, video) across the web. • HTTP contains references or "links" to other files. Web servers are known as HTTP servers.

  3. FTP--File Transfer Protocol • Originally developed to allow researchers to give one another access to programs and large data files. • Usually have ID and password BUT there are anonymous FTP sites

  4. What is FTP? • FTP (File Transfer Protocol) allows a person to transfer files between two computers, generally connected via the Internet. • If your system has FTP and is connected to the Internet, you can access very large amounts of files available on a great number of computer systems. • When using FTP, you use a program, called a 'client' to connect to a machine that holds the files, a 'server'.

  5. What is Anonymous FTP? • Many computer systems throughout the Internet offer files through anonymous FTP. • This means that you can access a machine without having to have an account on that machine (i.e. you don't have to be an official user of the system).

  6. Examples: • Use the prefix FTP. Instead of HTTP. • FTP.FTPPLANET.COM • FTP.IPSWITCH.COM • FTP.RPHSBUSINESS.ORG • (password protected NOT anonymous)

  7. Electronic Mail--E-mail • Two servers: Incoming/Outgoing • SMTP(simple mail transfer protocol) is outgoing • POP and IMAP (Post Office Protocol & Internet Message Access Protocol) are incoming. • POP resides on the server/IMAP allows sharing of mailboxes. • E-Mail Software To read your e-mail, you need a program. There are stand-alone software packages, such as Eudora (www.eudora.com) and Pegasus (www.pegasus.usa.com), but the two most popular World Wide Web browsers--Netscape (www.netscape.com) and Internet Explorer (www.microsoft.com/ie)--come bundled with perfectly adequate e-mail applications.

  8. DNS--Domain Name System www.ciwcertified.com Server (host)Name Registered Company Domain Name Domain Category (Top-Level Domain) DNS syntax--Read it right to left

  9. Top-Level Domains • The COM, EDU and UK portions of these domain names are called the top-level domain or first-level domain. • There are several hundred top-level domain names, including COM, EDU, GOV, MIL, NET, ORG and INT, as well as unique two-letter combinations for every country.

  10. FQDN--Fully Qualified Domain Name • Complete domain from the www to the .com as example. • DOESN'T include the http or the ftp.

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