Mimecast Web Security: Installing / Verifying a Mimecast Certificate

Document created by user.oxriBaJeN4 Employee on Dec 12, 2017Last modified by user.oxriBaJeN4 Employee on Oct 1, 2018
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In order to display block and warning pages for sites using SSL (Secure Sockets Layer, a standard security technology for establishing an encrypted link between a server and a client) and to access sites that meet the proxy criteria using SSL, you will need to install a Mimecast SSL Certificate on your system.

The Mimecast Security Agent software will automatically install the Mimecast SSL Certificate into your system's keychain / certification root. View the "Browser Recommendations" section of the MSA installation guide for Windows OS or Mac OS for further information. If you aren't installing the MSA endpoint software, you'll still need to install the Mimecast certificate to provide network level protection. 

Installing the Mimecast Certificate

 

To install the Mimecast SSL Certificate:

  1. Log on to the Administration Console.
  2. Click on the Administration menu item. A drop down menu is displayed.
  3. Click on the Web Security | Certificate and DNS Setup menu item. The "Certificate" tab displays by default.
  4. Click on the Download Certificate button. The certificate downloads to your computer.
  5. The Mimecast SSL Certificate can be installed on your system using Group Policies Objects (GPO) or other preferred methods of distribution.

Verifying the Certificate's Hash

 

To verify the Mimecast SSL Certificate:

  1. Log on to the Administration Console.
  2. Click on the Administration menu item. A drop down menu is displayed.
  3. Click on the Web Security | Certificate and DNS Setup menu item. The "Certificate" tab displays by default.
  4. Check that the SHA-256 hash downloaded to your computer matches the code displayed in the console.

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