All files containing answers to end of chapter exercises have been password protected.
The username and password may be obtained from your instructor. If he/she
does not already have the username and password ask him/her to contact me by email
(firstname.lastname@example.org) to get them. I will
forward them to the instructor who will, in turn, distribute them to students.
There are a number of reasons why a student with the correct username/password may not
be able to access restricted materials. These include:
- Domain Name - This is only applicable if the login prompt dialog
contains a third box for domain. When accessing protected material Internet Explorer
will sometimes display a login dialog with spaces for username, password, and
domain. The web server software is configured to set the domain
automatically but occasionally gremlins do run amok. Try entering MGT for the
- Account Lockout - The web server will lock out the student account if
five unsuccessful logins are attempted. The account is locked out for five minutes.
If you suspect this is the problem simply wait five minutes then try the access
- Browser Incompatibility - The protocol by which the username/password
are prompted and transmitted is not implemented in very old browsers. You must be
running either Netscape or Internet Explorer, versions 3.0 or higher, to access protected
- Incorrect Case - The username and password are case sensitive.
Make sure that you are using uppercase and lowercase characters in the proper
places. Also make sure that CapsLock isn't enabled on your keyboard.
- Internet Service Provider Problems - Some ISPs do not
forward all types of network packets to users connected via modems. If
the packet types required for login to the web server aren't correctly
forwarded then the login prompt will not appear and access will be denied.
- Firewalls - This is actually a special case of ISP problems. Many
secure or restricted domains use firewalls that filter the packet types required for
login. This is particularly a problem for many subdomains within the .mil class A
- Workstation Network Configuration - this is a very broad category of
problems that are difficult to diagnose and correct.
Place your mouse pointer
over the blue box for an answer, hold the mouse still for second or two, and the
answer should pop up in a small text box. I haven't had an opportunity to
test these exercises on browsers other than Internet Explorer. If you
encounter problems with such a browser please let me know via email.
This page was last modified on
January 08, 2008.
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