Agenda
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Overview of Seneca Computer System
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File Servers / Student Computer Accounts
Telnet application
How to Logon to Learn / Phobos accounts
How to Change your Password
Computer Networks
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Personal computers that are not
connected to other computers (via
network cards) are referred to as
“stand-alone” computers.
Institutions such as colleges find it
more economical and efficient to
connect up personal computers to form
a computer network
Computer Network
Terminal
(Client)
Terminal
(Client)
File Server
(Central Computer)
Terminal
(Client)
Terminal
(Client)
Terminal
(Client)
Terminal
(Client)
File Server
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A file server is a powerful centralized
computer system with an operating system
that allows multiple users to access software
applications and data files.
The file server may also provide other
important services such as network printer
management and connection to other
networks (Internet)
Computer Networks

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Computers connected to form a
network over small geographic locations
(such as a building or city) are referred
to as Local Area Networks (LANs)
Local Area Networks can use modems
or routers to connect up to other LANs
from far distances to form Wide Area
Networks (WANs)
Advantages of Computer
Networks

Economical

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Ability to share hardware devices such as printers
and scanners
Efficient
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Ability to communicate among users
Efficient method to maintain and upgrade software
(I.e. one copy of software on file server therefore, only upgrade one location)
Ability for users to share files
Servers at Seneca College
Newnham Campus
Internet
Student
Modem
Pool
• SIRIS (Academic)
• LEARN (Student Academic)
Seneca @ York Campus
• PHOBOS (Programming Account)
• VISION (Student Webpage)
• FURIES (Faculty)
Relevant Servers
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LEARN
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PHOBOS
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Used to read and send e-mail. Phobos password
will be e-mailed to this account
Computer account used for creating, modifying,
compiling and executing programs
VISION
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Used to store and maintain a student webpage.
Need to request permission for account
Steps to Logon to PHOBOS
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Access SIRIS from web browser
Complete Siris screen to generate
LEARN & PHOBOS accounts
Setup / Read e-mail in LEARN to obtain
PHOBOS account name & password
Telnet to Phobos account - Read e-mail
and record VISION password
Steps to Logon to PHOBOS
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Logon to SIRIS to create account.
Change Learn password. Remember to
use your 5 digit PIN number to logon to
SIRIS.
Steps to Logon to PHOBOS
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Setup & access LEARN email via
Netscape to check e-mail to determine
your PHOBOS username and password.
Logout of LEARN account
Logon to PHOBOS account via telnet
application. Change password and
LOGOUT of PHOBOS account.
Setup Netscape to Access
LEARN mail
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Launch Netscape, point and click onto
EDIT menu and point and click onto
preferences
Setup Netscape to Access
LEARN mail
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Point and click onto the plus sign to the
right of the “Mail & Newsgroups”
category: this will expand the selection.
Point and click onto Identity
Setup Netscape to Access
LEARN mail
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If you are using Netscape at the Seneca
College labs, you will have to type in
the following information for every new
session:
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Your name
Your LEARN e-mail address
Setup Netscape to Access
LEARN mail
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Point and click onto “Mail Servers”, and
enter the following information:
Mail server user name: type your username
 Accept all other defaults
Point and click onto OK
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Setup Netscape to Access
LEARN mail
How to Read E-mail via
Netscape
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Point and click onto the mailbox button:
Point and click onto the New Message
button to read your e-mail
How to Read E-mail via
Netscape
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You will required to enter your LEARN
password (not the 5 digit number, but
actual LEARN password you created in
SIRIS)
WARNING:
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Make sure to close Netscape after reading
your e-mail messages; otherwise, people
can read your e-mail and send e-mail with
your e-mail address.
How to Logon to PHOBOS
Server
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Run Telnet Program / Open Session
Type in your Phobos Login I.D.
Type in your password
Note:
For first time-users, you must go to
Siris, create a learn account, read e-mail
message in LEARN account via Netscape
regarding PHOBOS username &
Password
What is the Telnet Application?
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Unix systems such as PHOBOS were originally
designed to accommodate “dumb terminals”
which were simply monitors and keyboards
directly connected up to network
Telnet allows the server to “think” that the
user’s personal computer is a “dumb
terminal”
A common type of “dumb terminal” was
Digital Equipment corporation’s VT100.
Telnet Application
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To launch or “run” the Telnet application from
the Seneca computing lab, point and click
onto the application “telnet” on the Windows
95 desktop
You can obtain a free version of Telnet
application for home use (assuming you have
computer system with modem). More details
in following lessons
Open Session
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For all Telnet applications, you must specify
which server that you will connect
For this Telnet application, you must point
and click onto the File menu, select Open and
type the server name (such as phobos).
If you are logging in from another ISP you
must provide the full domain name of the
server (such as phobos.senecac.on.ca)
Logging Onto Your Phobos
Account
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After you connect to the phobos server,
you must type in your username
(should be on your Seneca “one-card”)
and your password.
The password will be provided to you
by an e-mail message in your LEARN
account. It is important to get your
LEARN account as soon as possible!
Protecting your Computer
Accounts
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It is important to assign an appropriate
password to prevent unauthorized
access to your computer accounts.
Concerns regarding unauthorized use:
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Illegal Activity
Suspension of account
Loss of data / Copying of assignments
Password tips
Avoid easily detected passwords such
as names or a series of numbers.
 Use phrases and take the first letter of
each word
For example:
Autumn leaves Turn red, yellow, orange
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Password Tips
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Combine upper and lower cash letters
Include a non alpha-numeric characters
such as . - in your password
Acceptable passwords on PHOBOS and
LEARN range from 6 to 8 characters
Changing your Password
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After logging onto PHOBOS, you can
change your password by typing at the
$ prompt:
passwd <ENTER>
Note: It is recommended to change
password periodically.
Logging-off Phobos
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Always log-off of your Phobos account and
exit the Telnet Application before you leave
your terminal
To log-off of your Phobos account, type the
following command at the Phobos prompt:
logout <ENTER>
(or exit or <CTRL><D>)
After your session is disconnected, exit the
Telnet application
Homework

Create an acceptable password using
the above-mentioned techniques. Be
prepared to change your password in
next computer lab.