Block Internet Access

Note: When a Web site is blocked, the user may see a "Page Not Found" error. There may be a delay with a timeout error returned.

Configure Computers

Configure Internet Blocking recordings in the Block Internet Access panel of the  Deployment Utility wizard or in the right pane of the Client Settings window. If you select Internet Blocking in Client settings, you can check the status of this recording option, as well as change Blocking options and schedule.

Options

  Internet Ports Access

You can block specific types of Internet access: https, chat, or instant messenger access. For example, in a test lab or library, you might block most Chat/IM and email protocols, but allow access to web sites for research and allow the messaging interface used among employees.

For each of the options, check the box to block access; clear the box to allow access:

Web Site Access

In this area of Internet Blocking, create a list of web sites to block or to specifically allow.  You can block up to 1,000 web sites.

A window pops up. Enter the host name and the domain name. Do NOT enter a specific page on the web site. For example, the domain www.badsite.com matches and blocks all pages on the web site, including http://www.badsite.com/badpage.html or http://www.badsite.com/badfolder/anotherbadpage.html. It would not match  http://mail.badsite.com. If you enter badsite.com the Client would block or allow all pages on http://www.badsite.com as well as http://mail.badsite.com. Click OK to add the new domain to the list.

Use of this setting may cause unintended consequences. For example: If you specify in the Client that the only site the computer's user can access is cnn.com, you might expect that the user of the computer would be able to browse anything on the http://www.cnn.com Web site. For the most part, this is true; however, http://www.cnn.com will load pages and information from other domains in order to provide all of its content. As a result, only part of http://www.cnn.com, or what is intended as the site content, will be available.

 

Large lists of web sites cause potential performance issues. The limit for the number of domains to BLOCK or ALLOW is 1000 entries.

Importing/Exporting a Block List

You can import a list of web sites to block (or allow). The import file should be a plain text (.txt) file with one domain name on each line. For example:

# Commented lines can be used
# with this symbol to add info to the list

www.gamblingsite.com

pornographysite.com

badsite.com

 

To import a list:

  1. Create the text file listing all domains to block or allow.

  2. Open the Control Center, and use either the Deployment Utility or Client Settings to access the "Block Internet Access" panel.

  3. At the block Internet Access panel, select Block Internet Access and Block Selected Internet Access.

  4. You are then able to click the Import button.

  5. Browse to the location of your text file of domains and click Open.

  6. The list is loaded into the panel's Web Site Access list.

To export a list:

  1. Finalize your list using the Block Internet Access panel in the Deployment Utility or Client Settings.

  2. Click the Export button.

  3. Navigate to a location to save the text file, name the file, and click Save. The list of all of Internet Sites to block or allow is written to the text file.

 


Related Topics:

Block When (Schedule & Users) Settings

Block Internet (Schedule & Users) Configuration

Client Deployment Utility - Building the Installation File

Client Settings Overview