HVAC Control in the New Millennium.pdf - HVAC.Amickracing

HVAC Control in the New MillenniumFigure 7-6. Perimeter networks that need to be protected.characters you can type in the log-on box will make it harder for hackers,but also harder for users to log on. Place restrictions on all userdefinedpasswords. Do not use words for passwords that contain thebirth date, middle name, and/or spouse’s and children’s’ names, sincethis makes it easier for hackers to obtain access to the password.Also, do not use any common word that can be found in a dictionary.A common hacker technique is to run lists of common words suchas names of famous places or people. Use more complicated rather thansimple passwords. The later Windows NT versions have a Service Packwith features that improve the security of the network passwords. Itrequires the user passwords to be at least six characters long. They mustalso contain characters from at least three of the following four groups:• English uppercase letters (A-Z),• English lowercase letters (a-z),• Arabic numerals (0-9) and• Punctuation or other special characters.©2001 by The Fairmont Press, Inc. All rights reserved.