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How to Block Access to Proxy Websites using Application Control


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https://www.sonicwall.com/en-us/support/knowledge-base/170505565044947

How to Block Access to Proxy Websites using Application Control

Last Updated: 5/11/2018 9052 Views 24 Users found this article helpful

Description

This article describes how to block access to proxy websites using the SonicWall App Control Advanced feature.

Resolution

The SonicWall App Control Advanced feature contains numerous signatures to block access to proxy websites. Access can be restricted or blocked in the following three ways:

  • Block by Category: This is a global setting blocking access to all proxy websites.
  • Block by Application: In this method, particular proxy sites can be blocked by name.
  • Block by Signatures: Using this method individual signatures for each site can be blocked.

Blocking the Category Proxy Access:

  • Login to the SonicWall Mangement GUI.
  • Navigate to the Firewall | App Control Advanced page. In Gen5 TZ devices this page is under Security Services | App Control
  • Check the box under Enable App Control and click on the Accept button at the top to enable App Control .
  • Under App Control Advanced | View Style select PROXY-ACCESS under Category
  • Click on the configure button.
  • In the Edit App Control Category window, select Enable under Block and Log fields.
  • Click on OK to save.

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Blocking an individual proxy website:

  • Under App Control Advanced | View Style | Application , select a proxy website you wish to block. (In this example Kproxy )
  • Click on the configure button.
  • In the Edit App Control Application window, select Enable under Block and Log fields.
  • Click on OK to save.

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Blocking a signature for a proxy website:

  • Under App Control Advanced | View Style | Application , select a proxy website you wish to block (in this example Vtunnel ).
  • Set Viewed By to Signature
  • Listed below would be signatures for the website you have selected under Application .
  • Click on the configure button on any one of the signatures you wish to block.
  • In the Edit App Control Signature window, select Enable under Block and Log fields.
  • Click on OK to save.

Testing

When accessing a proxy website earmarked for blocking, the following messages will be logged under Log | View , depending on the signature you have selected for blocking:

Resolution for SonicOS 6.5 and Later

SonicOS 6.5 was released September 2017. This release includes significant user interface changes and many new features that are different from the SonicOS 6.2 and earlier firmware. The below resolution is for customers using SonicOS 6.5 and later firmware.

The SonicWall App Control Advanced feature contains numerous signatures to block access to proxy websites. Access can be restricted or blocked in the following three ways:

  • Block by Category: This is a global setting blocking access to all proxy websites.
  • Block by Application: In this method, particular proxy sites can be blocked by name.
  • Block by Signatures: Using this method individual signatures for each site can be blocked.

Blocking the Category Proxy Access:

  • Login to the SonicWall Mangement GUI.
  • Navigate to Manage at the top of the page
  • Navigate to the Policies | Rules | Advanced Application Control page.
  • Check the box under Enable App Control and click on the Accept button at the top to enable App Control .
  • Under App Control Advanced | View Style select PROXY-ACCESS under Category
  • Click on the configure button.
  • In the Edit App Control Category window, select Enable under Block and Log fields.
  • Click on OK to save.

Image

Blocking an individual proxy website:

  • Under App Control Advanced | View Style | Application , select a proxy website you wish to block. (In this example Kproxy )
  • Click on the configure button.
  • In the Edit App Control Application window, select Enable under Block and Log fields.
  • Click on OK to save.

Image

Blocking a signature for a proxy website:

  • Under App Control Advanced | View Style | Application , select a proxy website you wish to block (in this example Vtunnel ).
  • Set Viewed By to Signature
  • Listed below would be signatures for the website you have selected under Application .
  • Click on the configure button on any one of the signatures you wish to block.
  • In the Edit App Control Signature window, select Enable under Block and Log fields.
  • Click on OK to save.

Testing

When accessing a proxy website earmarked for blocking, the following messages will be logged under Log | View , depending on the signature you have selected for blocking:

https://www.sonicwall.com/en-us/support/knowledge-base/170505565044947

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