How to restrict personal Gmail and other Google services

Description

Data loss prevention and employee productivity are always a concern when on the corporate network, this article explains how you can restrict Google services to only the corporate domain.

Resolution for SonicOS 7.X

This release includes significant user interface changes and many new features that are different from the SonicOS 6.5 and earlier firmware. The below resolution is for customers using SonicOS 7.X firmware.

Prerequisites

  1. You have rolled out the DPI-SSL certificate to all machines subject to this policy.
  2. You have an existing CFS policy in place.
  3. You are blocking Google Quic (if using Chrome as a browser) via application or firewall rules. 

Restricting Google Services

1. Go to Object | Match Objects | Zones  and enable DPI-SSL Client on the required zones.

2. Go to Policy | DPI-SSL | Client SSL and Enable SSL Client Inspection along with Content Filter.

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3. Go to Object | Profile Objects | Content Filter and edit the profile that you are using in your policy

  • Go to the Custom Header Tab and Enable Custom Header Insertion and add the following (replace sonicwall.com with your own domain):

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4. Try logging into a personal account. 

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Resolution for SonicOS 6.5

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 firmware.

Prerequisites

  1. You have rolled out the DPI-SSL certificate to all machines subject to this policy.
  2. You have an existing CFS policy in place.
  3. You are blocking Google Quic (if using Chrome as a browser) via application or firewall rules. 

Restricting Google Services

1. Go to Manage | Network | Zones  and enable DPI-SSL Client on the required zones.

2. Go to Manage | Decryption Services | DPI-SSL/TLS Client and Enable SSL Client Inspection along with Content Filter.

Image

3. Go to Manage | Objects | Content Filter Objects | CFS Profile Objects and edit the profile that you are using in your policy

  • Go to the Custom Header Tab and Enable Custom Header Insertion and add the following (replace sonicwall.com with your own domain):

Image

4. Try logging into a personal account. 

Image

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