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University Technology Services
Security Warning



Your external Internet connection has been blocked for reasons described below. The following Reference Code will be needed to unblock your connection:

Reference Code: unassigned

Please include:

  • your Reference Code (unassigned)
  • your name
  • the last four digits of your DU Id
  • and your @du.edu e-mail address
in any correspondence related to this matter.

Security Warning

We apologize for any inconvenience. However, we have detected what appears to be a problem with your computer. In addition to impacting the performance and integrity of your computer, that problem may impact others on either the University of Denver network or the Internet as a whole.

Your access to external Internet sites will continue to be blocked until we have some assurance from you that the problem is being resolved. Failure to resolve the problem in a timely manner may result in the imposition of additional restrictions necessary to protect other computers and the network.

Virus Prevention

Many problems that cause network connections to be blocked can be prevented by up-to-date anti-virus software. If you are using anti-virus software, please keep your virus signatures up to date. New viruses are released almost every day!

If do not have anti-virus software, you may be eligible to install a site-licensed copy of Symantec Antivirus which is available download at https://taurus.cair.du.edu/downloads/. Do not install this software if anti-virus software is already running on your computer. Only one anti-virus program can run on your computer at any given time.

Critical Updates

Many computer viruses spread by taking advantage of known and correctable problems in Microsoft Windows. To avoid these virues, it is important for you to keep your Windows software up to date. Free Windows updates are available from Microsoft at http://windowsupdate.microsoft.com.

We recommend that you set your system to download and install critical updates automatically. The procedure for doing this is slightly different for Xindows XP and Windows 2000. Both systems require that you follow these steps with a login that has administrative rights.

Windows XP:
Right click on My Computer and select Properties. Select the Automatic Updates tab. Then follow the Common Procedure below.
Windows 2000:
Click Start, Settings, Control Panel. Select System. If the General tab does not indicate your computer is at Service Pack 4 or higher, go to http://windowsupdate.microsoft.com with Internet Explorer. Then download and install updates required to bring you to Service Pack 4. Once Service Pack 4 has been installed, click Start, Settings, Control Panel, Automatic Updates. Then follow the Common Procedure below.
Common Procedure:
Follow these steps to configure automatic updates for either Windows XP and Windows 2000:
  1. Check Keep my computer up to date...
  2. Select Automatically download updates and install them on the schedule that I specify.
  3. Select Every day. and a time that will be convenient for you.
  4. Click Apply.
  5. Click OK.


Many viruses exploit Windows logins with weak passwords or no passwords at all. Make sure every login on your computer has a strong password. Strong passwords:

  • Are at least 8 characters long.
  • Are neither English words nor login names.
  • Contain a combination of lowercase letters, uppercase letters, numbers and punctuation characters.

Getting Help

If you need assistance, please contact the appropriate Help Desk. Students, faculty and staff of the Law School should contact the Law School Help Desk at 303-871-6464. Students living in University residence halls should contact Resident Technology Assistants in a residence hall computing lab during normal lab hours. All others should contact the UTS Help Desk by filling out the Email/Online Support Help Form or calling 303-871-4700.

For other questions or to request that the block on your external Internet access be lifted, please contact Network Security by sending mail to info-security@du.edu or by calling 303-871-4940.

Please note the Reference Code below. You will need this code, the last four digits of your DU Id, and your @du.edu e-mail address when discussing your case with the Help Desk or Network Security.

Reference Code: unassigned
IP Number:
Domain Name: ec2-54-147-250-33.compute-1.amazonaws.com
Time: Sun Feb 1 00:06:41 2015

University Technology Services: Sturm Hall - Room 391, Denver, Colorado 80208
Telephone 303.871.4000 · E-mail Us.

Copyright © 2003 University of Denver