Introduction to WebFX

Summary of Last Lectures n Introduction to computers n Computer hardware and software –computer microcomputer minicomputer mainframe computer IBM PC –bit, byte, kilobyte (KB), megabyte (MB), gigabyte (GB), terabyte –cpu, memory, RAM, ROM –secondary storage - hard disk, floppy, and CD-ROM – modem –graphics adapter pixel resolution –operating system, applications software

Introduction to WebFX n A network is a system of interconnected computers n The computers can be connected via a wide range of communications systems, including phone lines, satellite links, radio waves, etc n Computers in a network can send messages to each other (e.g. ), send files to each other, run programs and send output to each other

Server and Client n A computer which provides services to another (such as a data or program file) is referred to as a server. n It uses special software to provide services to one or more other computers on the network, which are often referred to as clients, or the users desktop computers.

Types of Networks n LAN (Local Area Network) – A LAN is generally limited to a specific area, such as a building, or a campus. The computers on a LAN are able to share data with each other, but not with computers outside the LAN n WAN (Wide Area Network) – A WAN is a network system which can extend over a wide geographic area, and is not limited to a specific physical area

LAN n Server –computers dedicated to the task of providing file sharing and other services to computers on the LAN. These special computers are called file servers, and they are often high- end computers which can deal with requests from a number of computers simultaneously –Novell Netware and Windows NT Server are examples of a server-based networking system. WebFX is a Windows NT 4.0 Server- based system.

WAN n Use a variety of technologies to provide linkages between widely separated computers n The most common, and largest WAN is the Internet, which uses an underlying technology called TCP/IP (Transmission Control Protocol/Internet Protocol) to link systems together.

Introduction to WebFX n WebFX (Windows NT 4.0 Network): WebFX is a general name for the computing initiative at St.F.X., and is sometimes used to refer to the campus networking system.

What is on WebFX n Caesar is the applications server; n Iago is the Internet server, and provides Web, Mail, Newsgroup, Calendar and Directory servers; n Julius is the student file server; n MacBeth is the printer server.

WebFX for Students n All students on campus must login to WebFX to use any computer resources on campus. n When logged in to WebFX, users can access any software applications (Windows and DOS) for which you have valid permissions. n Home Directory - H: n Web Directory - W:

Using WebFX n To access WebFX, you need –WebFX account - This username (e.g. x2001xyz) provides you with access to WebFX domain;

Login & Logout n To login: –CTRL + ALT + DEL ---> –enter username (x2001abc) ---> –TAB ---> enter password ---> –make sure bottom says WebFX---> ENTER n To Logout –® Start®/Shutdown –login as different user (Never leave your computer without logging out first)

Change Password n Change network account password to an easy to remember combination of numbers and letters (at least 6) letter: n Ctrl + ALT + DEL at NT screen ;

Printers on Campus n A number of network printers are available on campus. n Lab printers (laser printers) have a cost associated with their use. –Users are given a preliminary account containing $12.50, –printing costs $0.05 per page, –billing occurs at the end of the month (be careful and there is interest).

Printing under WebFX n Printers on campus for students include dot matrix printers (printing is free) and laser printers (printing has a cost). n Make sure you select the proper printer before you click the print button –The most common mistake people make is to click the Quick-Print button (e.g. in Word ) before selecting the printer from the File-Print menu option.

Printing under WebFX n Try not to waste paper. Use the Print Preview function when available to make sure that your document will print the way you want before you print it. n Make sure you select a default printer, otherwise you won’t be able to print. n To see Printer Queue: Start/Settings/Printers - right click on printer and open it- you can only delete your own jobs

Backing Up Your Data n Save important files in your H: directory to backup your data. This network drive is backed up on a daily basis (10 MB limit) n You should still maintain your own local backups since it is costly to restore data from backup tapes n Don’t save to the C: drive! n Use W: for web documents only!

Backing Up Your Data n Back up using floppy diskettes: –label the floppy as a backup –check the floppy regularly for bad sectors with the NT Error-Checking Tool (right click the A: drive icon in Explorer, choose Properties-Tools-Error Checking) –check the floppy regularly for viruses (use Norton program) –use the write-protect tab when the floppy is not in use.

Summary n Networks n WebFX