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Configuring Website Blocking


This chapter describes how to use SonicWALL Global Management System (SonicWALL GMS) to configure one or more SonicWALL appliances' website blocking options. This functionality can be used to deny access to material supplied by the active content filtering subscription, specific domains, domains by keyword, and web features such as ActiveX, Java, and cookies.

To configure website blocking features, select from the following:

Configuring General Website Blocking Options

The General page is used to configure whether access to restricted content, sites, and features is blocked or logged, when users can access blocked material (if ever), and the message that will be displayed when users attempt to access blocked material.

SonicWALL offers two types of content filtering and supports two third-party content filtering packages: N2H2 and Websense Enterprise. To configure filtering options for N2H2 or Websense, view the documentation that came with the software package.

To configure general blocking options, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click General. The Website Blocking General page appears (Figure 140).
  4. Figure 140: Website Blocking General Page

  5. Select the content filtering package that you will use:
    • SonicWALL CFL/CFS-enables either the CFL or CFS SonicWALL filtering package based on the firmware version of the SonicWALL appliance. To configure SonicWALL content filtering, see "Selecting the Content to Block" on page 157.
    • N2H2-To use N2H2, you must have the N2H2 software package running on a server in your network. For more information, visit www.n2h2.com.
    • Websense-To use Websense, you must have the Websense Enterprise software package running on a server in your network. For more information, visit www.websense.com.
    • Note: If you select N2H2 or Websense, make sure to configure their filtering options. For more information, see "Websense and N2H2 Content Filtering" on page 171.

  6. To apply content filtering to and web feature restrictions to the LAN port (WorkPort), select LAN/WorkPort.
  7. To apply content filtering to and web feature restrictions to the DMZ port (HomePort), select DMZ/HomePort.
  8. A trusted domain is a domain that is allowed to use web features such as Java, ActiveX, and Cookies. To create a list of trusted domains, select the Don't block Java/ActiveX/Cookies to Trusted Domains check box.
  9. Then, enter a domain name in the Trusted Domains field and click Add. Repeat this step for each domain you would like to add.

    Note: Enter the domain name only. For example, "yahoo.com." Do not include "http://."

    Entering "yahoo.com" will also allow access to www.yahoo.com, my.yahoo.com, sports.yahoo.com, and so on.

    Note: This feature will only enable web features for the selected domains. To make the domain available for unrestricted browsing, add it to the Allowed Domains list. For more information, see "Controlling Access to Specific Domains" on page 165.

  10. Enter the message that will be displayed when users attempt to access restricted content, sites, and features. For example, "This material is restricted. Get back to work."
  11. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.
  12. Continue to the next section, "Selecting the Content to Block."

Selecting the Content to Block

Depending on the version of the firmware, you will use either the CFL Filter List or the CFS Filter List page. If a SonicWALL appliance uses CFL, it will periodically download a filter list that will be used to block objectionable sites. If a SonicWALL appliance uses CFS, it will send a request to the SonicWALL site each time a request for potentially objectionable material is made.

Content Filter List

The CFL Filter List page defines categories of website content that will be blocked and when the SonicWALL appliance(s) will download the content filter list.

Note: This page does not affect N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure the filter list, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click CFL Filter List. The CFL Filter List page appears (Figure 141).
  4. Figure 141: CFL Filter List Page

  5. Select the content to block:
    • Violence/Profanity-Includes pictures or text exposing extreme cruelty, or physical or emotional acts against any animal or person that are primarily intended to hurt or inflict pain. Obscene words, phrases, and profanity are defined as text that uses, but is not limited to, George Carlin's seven censored words more often than once every 50 messages (Newsgroups) or once a page (Web sites).
    • Partial Nudity-Pictures exposing the female breast or full exposure of either male or female buttocks, except when exposing genitalia. Excludes all swimsuits, including thongs.
    • Full Nudity-Pictures exposing any or all portions of the human genitalia. Excludes sites containing nudity or partial nudity of a wholesome nature. For example, web sites hosted by publications such as National Geographic or Smithsonian Magazine and museums such as the Guggenheim, the Louvre, or the Museum of Modern Art are not blocked.
    • Sexual Acts (graphics or text)-Pictures or text exposing anyone or anything involved in explicit sexual acts and or lewd and lascivious behavior, including masturbation, copulation, pedophilia, and intimacy involving nude or partially nude people in heterosexual, bisexual, lesbian or homosexual encounters. This also includes phone sex ads, dating services, adult personals, CD-ROMs, and videos.
    • Gross Depictions (graphics or text)-Pictures or descriptive text of anyone or anything that are crudely vulgar or grossly deficient in civility or behavior, or that show scatological impropriety. For example, maiming, bloody figures, or indecent depiction of bodily functions.
    • Intolerance (graphics or text)-Pictures or text advocating prejudice or discrimination against any race, color, national origin, religion, disability or handicap, gender, or sexual orientation. Includes any picture or text that elevates one group over another. Also includes intolerant jokes or slurs.
    • Satanic/Cult (graphics or text)-Pictures or text advocating devil worship, an affinity for evil or wickedness, or the advocacy to join a cult. A cult is defined as a closed society headed by a single individual where loyalty is demanded and leaving is punishable.
    • Drugs/Drug Culture (graphics or text)-Pictures or text advocating the illegal use of drugs for entertainment. Includes substances used for other than their primary purpose to alter the individual's state of mind, such as glue sniffing. Excludes currently illegal drugs legally prescribed for medicinal purposes (e.g., drugs used to treat glaucoma or cancer).
    • Militant/Extremist (graphics or text)-Pictures or text advocating extremely aggressive and combative behaviors, or unlawful political measures. Topics include groups that advocate violence as a means to achieve their goals. Includes "how to" information on weapons making, ammunition making, or the making or use of pyrotechnic materials. Also includes the use of weapons for unlawful reasons.
    • Sex Education (graphics or text)-Pictures or text advocating the proper use of contraceptives. This topic includes condom use, the correct way to wear a condom and how to put a condom in place. Also included are sites relating to discussion about the use of the Pill, IUDs, and other types of contraceptives. In addition to the above, this includes discussion sites on discussing diseases with a partner, pregnancy, and respecting boundaries. Excluded from this category are commercial sites selling sexual paraphernalia.
    • Questionable/Illegal Gambling (graphics or text)-Pictures or text advocating materials or activities of a dubious nature which that be illegal in any or all jurisdictions, such as illegal business schemes, chain letters, copyright infringement, computer hacking, phreaking (using someone's phone lines without permission), and software piracy. Also includes text advocating gambling relating to lotteries, casinos, betting, numbers games, on-line sports, and financial betting, including non-monetary dares.
    • Alcohol & Tobacco (graphics or text)-Pictures or text advocating the sale, consumption, or production of alcoholic beverages and tobacco products.
  6. To configure the SonicWALL appliance(s) to download the content list weekly, select the Automatically Download List Every check box and select the day of the week and time when the download will occur.
  7. If you select this option, configure the SonicWALL appliance(s) to download the list at a time when network activity is low.

    Note: This option requires a subscription to the Content Filter List updates.

  8. To download a new content filter list now, click the Download Filter List Now button.
  9. Select one of the following Timing options:
    • Always Block-Always blocks access to all restricted content, sites, and features.
    • Block From-Blocks access to restricted content, sites, and features between the selected hours.
  10. Select one of the following Logging options:
    • Log and Block Access-Blocks access to restricted content, sites, and features and logs access attempts.
    • Log Only-Does not block access to restricted content, sites, and features, but logs access. This enables organizations to monitor appropriate usage without restricting access.
  11. Select from the following filter list expiration options:
    • To block access to all web sites except trusted domains thirty days after the filter list expires, select Block traffic to all websites except for trusted domains.
    • To allow access to all web sites thirty days after the filter list expires, select Allow traffic access to all websites.
  12. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.
  13. Continue to the next section, "Controlling Access to Specific Domains."

Content Filter Service

To configure the Content Filter Service, follow these steps:

Configuring the General CFS Filter List Settings

The CFS Filter List page defines categories of web site content that will be blocked in real time.

Note: This page does not affect N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure the filter list, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click CFS Filter List. The CFS Filter List page appears (Figure 143).
  4. Figure 142: CFS Filter List Page

  5. Specify how long the SonicWALL appliance will wait if the CFS server is unavailable before blocking web traffic in the If Server is unavailable for field.
  6. Specify the action the SonicWALL appliance will take if the server is unavailable. To block access to all web sites, select Block traffic to all Web sites. To allow access to all web sites, select Allow traffic to all Web sites.
  7. Specify how the SonicWALL appliance will respond to blocked URLs:
    • Block Access to URL-Blocks access to restricted content, sites, and features.
    • Log Access to URL-Does not block access to restricted content, sites, and features, but logs access. This enables organizations to monitor appropriate usage without restricting access.
  8. Specify the size of the URL cache in the Cache Size field (default: 3072 KB).
  9. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.

Configuring the CFS Standard Page

The CFS Standard page defines categories of web site content that will be blocked in real time.

Note: This page does not affect N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure the filter list, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click CFS Standard. The CFS Standard page appears (Figure 143).
  4. Figure 143: CFS Standard Page

  5. To enable content filtering, select the Enable Allowed/Forbidden Domains check box.
  6. To enable keyword blocking, select the Enable Keyword Blocking check box.
  7. To disable all web traffic except for specifically allowed domains, select the Disable all web traffic except for allowed domains check box.
  8. Select the content to block:
    • Violence/Hate/Racism-Includes pictures or text exposing extreme cruelty, or physical or emotional acts against any animal or person that are primarily intended to hurt or inflict pain. Includes pictures or text advocating prejudice or discrimination against any race, color, national origin, religion, disability or handicap, gender, or sexual orientation. Includes any picture or text that elevates one group over another. Also includes intolerant jokes or slurs.
    • Intimate Apparel/Swimsuit -Partial Nudity-Pictures exposing males or females in lingerie, swimsuits, or other intimate apparel.
    • Nudism (graphics or text)-Pictures or text advocating nudism, providing information, or advertising related resorts or services.
    • Pornography (graphics or text)-Pictures of any or all portions of the human genitalia and pictures or text exposing anyone or anything involved in explicit sexual acts and or lewd and lascivious behavior, including masturbation, copulation, pedophilia, and intimacy involving nude or partially nude people in heterosexual, bisexual, lesbian or homosexual encounters. Excludes sites containing nudity or partial nudity of a wholesome nature and all swimsuits, including thongs.
    • Weapons (graphics or text)-Pictures or text advocating the legal or illegal use of weapons, providing weapons for sale, or advocating extremely aggressive and combative behaviors, or unlawful political measures.
    • Adult/Mature Content (graphics or text)-Pictures or text such as phone sex ads, dating services, adult personals, CD-ROMs, and videos. Excludes sites containing nudity or partial nudity of a wholesome nature and all swimsuits, including thongs.
    • Cult/Occult (graphics or text)-Pictures or text advocating devil worship, an affinity for evil or wickedness, or the advocacy to join a cult. A cult is defined as a closed society headed by a single individual where loyalty is demanded and leaving is punishable.
    • Drugs/Illegal Drugs (graphics or text)-Pictures or text advocating the illegal use of drugs for entertainment. Includes substances used for other than their primary purpose to alter the individual's state of mind, such as glue sniffing. Excludes currently illegal drugs legally prescribed for medicinal purposes (e.g., drugs used to treat glaucoma or cancer).
    • Illegal Skills/Questionable Skills (graphics or text)-Pictures or text advocating materials or activities of a dubious nature which that be illegal in any or all jurisdictions, such as illegal business schemes, chain letters, copyright infringement, computer hacking, phreaking (using someone's phone lines without permission), and software piracy.
    • Sex Education (graphics or text)-Pictures or text advocating the proper use of contraceptives. This topic includes condom use, the correct way to wear a condom and how to put a condom in place. Also included are sites relating to discussion about the use of the Pill, IUDs, and other types of contraceptives. In addition to the above, this includes discussion sites on discussing diseases with a partner, pregnancy, and respecting boundaries. Excluded from this category are commercial sites selling sexual paraphernalia.
    • Gambling (graphics or text)-Pictures or text providing or advocating gambling services relating to lotteries, casinos, betting, numbers games, on-line sports, and financial betting, including non-monetary dares.
    • Alcohol & Tobacco (graphics or text)-Pictures or text advocating the sale, consumption, or production of alcoholic beverages and tobacco products.
  9. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.

Configuring the CFS Premium Page

The CFS Premium service enables you to add advanced content filtering functionality to one or more SonicWALL appliances by choosing specific content to filter from 64 different content categories. This section describes how to configure the CFS Premium service.

Note: This page does not affect N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure the CFS Premium service, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click CFS Premium. The CFS Premium page appears (Figure 144).
  4. Figure 144: CFS Premium Page

  5. Click Add CFS Policy. The Add CFS Policy page appears.
  6. Figure 145: Policy Page

  7. Enter a name for the policy.
  8. Click the URL List tab.
  9. Figure 146: URL List Page

  10. Select the check boxes of the categories to block.
  11. Click the Settings tab.
  12. Figure 147: CFS Settings Page

  13. To disable the allowed domains list, select the Disable Allowed Domains check box.
  14. To prevent access to domains specified in the Forbidden Domain list, select the Enable Forbidden Domains check box.
  15. To enable the keyword blocking feature, select the Enable Keyword Blocking check box.
  16. Select when the forbidden URLs will be blocked.
  17. When you are finished, click OK. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Cancel.
  18. Repeat this procedure for each filter that you would like to add.

Controlling Access to Specific Domains

The Customization page is used to block or allow access to specific domain names. This enables an organization to block access to domains that are not in the content filter list, allow access to domains in the content filter list, or only allow access to specific domains.

Allowed domains are domains that users can access, regardless of whether they appear in the content filter list. Allowed domains are particularly useful for dedicated systems that are only allowed to access specific websites. Up to 256 entries are supported in the Allowed Domains list.

Forbidden domains are domains that users will not be allowed to access. This is useful when a website disrupts a corporate or educational environment. To find out which websites are most frequently accessed, refer to the Top Web Site Hits section of the log report. Up to 256 entries are supported in the Allowed Domains list.

Note: This feature is not available if you select N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure list customization options, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click Customization. The Customization page appears (Figure 148).
  4. Figure 148: Customization Page

  5. Enable list customization by selecting the Enable Filter List Customization check box.
  6. To add an allowed domain, enter a domain name in the Allowed Domains field and click Add. Repeat this step for each domain you would like to add.
  7. Note: Enter the domain name only. For example, "yahoo.com." Do not include "http://."

    Entering "yahoo.com" will also allow access to www.yahoo.com, my.yahoo.com, sports.yahoo.com, and so on.

  8. To add a forbidden domain, enter a domain name in the Forbidden Domains field and click Add. Repeat this step for each forbidden domain you would like to add.
  9. Note: Enter the domain name only. For example, "bad-site.com." Do not include "http://."

    Entering "bad-site.com" will also block access to www.bad-site.com, really.bad-site.com, amazingly.bad-site.com, and so on.

  10. Select one of the following Timing options:
    • Always Block-Always blocks access to all restricted content, sites, and features.
    • Block From-Blocks access to restricted content, sites, and features between the selected hours.
  11. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.
  12. Continue to the next section, "Blocking Access to Domains by Keywords."

Deleting Domains from the Domain Lists

To delete one or more domains from the Allowed Domain or Forbidden Domain lists, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click Customization.
  4. Select an item to delete and click its check box below the trash can icon. Repeat this step for each domain that you want to remove from the domain lists.
  5. When you are finished, click Update. The selected items are deleted.

Blocking Access to Domains by Keywords

The URL Keywords page is used to block access to domain names by keyword. This provides a second line of defense against objectionable material. For example, if the keyword "xxx" was included in the list, the site "www.new-site.com/xxx.html" would be blocked.

Note: Be careful when using this feature. For example, blocking the word "breast" can prevent access to both pornographic or objectionable sites and those on breast cancer.

Note: This feature is not available if you select N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure domain blocking by keyword, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click URL Keywords. The URL Keywords page appears (Figure 149).
  4. Figure 149: URL Keywords Page

  5. Enable keyword blocking by selecting the Enable Keyword Blocking check box.
  6. Click Update. A task is scheduled that will apply the new setting to each selected SonicWALL appliance.
  7. To add a keyword, enter the keyword and click Add. A task is scheduled to add the keyword to each selected SonicWALL appliance. Repeat this step for each keyword you would like to add.
  8. To remove a keyword, select its check box below the trash can icon. Repeat this step for each domain that you want to remove from the domain lists.
  9. Continue to the next section, "Blocking Web Features."
  10. To clear all screen settings and start over, click Reset.

Blocking Web Features

The Web Features page is used to block ActiveX Controls, Java, cookies, web proxy, and known fraudulent certificates. To block these features, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click Web Features. The Web Features page appears (Figure 150).
  4. Figure 150: Web Features Page

  5. Select objects to block:
    • ActiveX-blocks ActiveX controls. ActiveX is a programming language used to imbed small programs in web pages. It is generally considered insecure because it is possible for malicious programmers to write controls that can delete files, compromise security, or cause other damage.
    • Java-blocks Java applets. Java applets are downloadable web applications that are used on many websites. Selecting this option will block all Java applets, regardless of their function.
    • Cookies-prevents websites from placing information on user hard drives. Cookies are used by Web servers to track Web usage and remember user identity. Cookies can compromise users' privacy by tracking Web activities.
    • Note: Blocking cookies on the public Internet creates a large number of accessibility problems. Most sites make extensive use of cookies to generate web pages and blocking cookies will make most e-commerce applications unusable.

    • Access to HTTP Proxy Servers-blocks users from accessing web proxy servers on the Internet to circumvent content filtering by pointing their computers to the proxy servers.
    • Known Fraudulent Certificates-blocks access to web content that originated from a known fraudulent certificate. Digital certificates help verify that web content originated from an authorized party.
  6. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.
  7. Continue to the next section, "Consent."

Consent

The consent feature allows organizations to specify computers that are always filtered and computers that are filtered by user request. This feature is popular in libraries, Internet cafes, and other public Internet systems.

The following is an example of a consent web page (Figure 151).

Figure 151: Sample Consent Page

Note: This feature is not available if you select N2H2 or Websense content filtering. For information on configuring filtering options for these software packages, refer to their documentation.

To configure the consent feature, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click Consent. The Consent page appears (Figure 152).
  4. Figure 152: Filtering Consent Page

  5. Select the Require Consent check box.
  6. Enter the maximum time a user can access the Internet in the Maximum Web Usage field.
  7. Specify the maximum amount of time (in minutes) a connection may remain idle before the user is logged out and must agree to the consent agreement again in the User Idle Timeout field.
  8. When the consent feature is enabled, users must choose whether they want filtering. Configure the following:
    • Enter the URL of the web page from which users choose to enable filtering. This page appears when users first attempt to access the Internet and must contain a link for choosing unfiltered access and a link for choosing filtered access. The link for unfiltered access is IPaddress/iAccept.html. The link for filtered access is IPaddress/iAcceptFilter.html. IPaddress is the LAN (WorkPort) IP address of the SonicWALL appliance.
    • Enter the URL of the page that appears when users choose to access the Internet without content filtering in the Consent Accepted URL (Filtering Off) field. This page must be accessible on the LAN (WorkPort).
    • Enter the URL of the page that appears when users access the Internet with content filtering enabled in the Consent Accepted URL (Filtering On) field. This page must be accessible on the LAN (WorkPort).
  9. When a user opens a web browser on a computer with mandatory content filtering they will be shown a consent page. You will need to create this Web page. It usually contains an Acceptable Use Policy and a notification that violations will be logged or blocked.
  10. This web page must reside on a web server that is accessible as a URL by LAN (WorkPort) users. This page must also contain a link that tells the SonicWALL appliance that the user agrees to having filtering enabled. To do this, create the following link:

    IPaddress/iAcceptFilter.html

    where IPaddress is the LAN (WorkPort) IP address of the SonicWALL appliance.

    Enter the URL of this page in the Consent page URL (Mandatory Filtering) field.

    Enter the IP address of a system that will be subject to mandatory filtering and click Add. Repeat this step for each system that will use mandatory filtering. Up to 128 IP addresses can be entered.

    To remove a system from the mandatory filtering list, highlight its IP address and click Delete Address.

  11. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.

Websense and N2H2 Content Filtering

This section describes additional filtering configuration options for N2H2 and Websense content filtering.

N2H2

To configure N2H2 content filtering options, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click N2H2. The N2H2 page appears (Figure 153).
  4. Figure 153: N2H2 Page

  5. Enter the N2H2 server name or IP address in the Server Host Name or IP Address field.
  6. Enter the port that the N2H2 server listens for N2H2 requests in the Listen Port field (default: 4005).
  7. Enter the port that the N2H2 server uses to send packets to the SonicWALL appliances in the Reply Port field (default: 4005).
  8. Enter the username associated with the N2H2 account in the User Name field.
  9. Enter the size of the URL cache in the URL Cache Size field. A larger URL cache can improve browser response times.
  10. Select the action that the SonicWALL appliance(s) will take if the N2H2 server is unavailable beyond the specified period of time:
    • To block traffic to all web sites, select Block traffic to all web sites.
    • To allow access to all web sites, select Allow traffic to all web sites.
  11. Select one of the following:
    • Block Access to URL-Blocks access to restricted sites and logs access attempts.
    • Log Access to URL-Does not block access to restricted sites, but logs access. This enables organizations to monitor appropriate usage without restricting access.
  12. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.

Websense

To configure Websense content filtering options, follow these steps:

  1. Start and log into SonicWALL GMS.
  2. Select the global icon, a group, or a SonicWALL appliance.
  3. Expand the Website Blocking tree and click Websense. The Websense page appears (Figure 154).
  4. Figure 154: Websense Page

  5. Enter the Websense server name or IP address in the Server Host Name or IP Address field.
  6. Enter the port used for Websense packets in the Server Port field (default: 15666).
  7. Enter the username associated with the Websense account in the User Name field.
  8. Enter the size of the URL cache in the URL Cache Size field. A larger URL cache can improve browser response times.
  9. Select the action that the SonicWALL appliance(s) will take if the Websense server is unavailable beyond the specified period of time:
    • To block traffic to all web sites, select Block traffic to all web sites.
    • To allow access to all web sites, select Allow traffic to all web sites.
  10. When you are finished, click Update. The settings are changed for each selected SonicWALL appliance. To clear all screen settings and start over, click Reset.


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