How to import Certificate Authority in Ubuntu: Difference between revisions

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*Enter your password (Use the same password that you use to login to computer or install programs) and press Enter
*Enter your password (Use the same password that you use to login to your computer or install programs) and press Enter
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Revision as of 11:38, 12 July 2016

How to download Computerisms Certificate Authority

  • Open your preferred browser and navigate to:
        http://help.computerisms.ca
  • Scroll down and Click on "The Certificate Warnings Issue"
  • Under the FAQ section right click on the first link and click on "Save Link As"


  • Important step!! Change the file name in the top bar from Computerisms.Root.Certificate.pem to Computerisms.Root.Certificate.crt


  • Save the file on your Desktop
    • Note: you can save the file anywhere you wish but a couple of the following commands in the terminal will not work without changing the path in the command. It is recommended to save it on your Desktop


  • Click on save

How to install Computerisms Certificate Authority into your Ubuntu Operation System


  • Press Ctrl+Alt+t to open a terminal window
  • copy and paste the following line to your terminal:
sudo cp Desktop/Computerisms.Root.Certificate.crt /usr/local/share/ca-certificates


  • Enter your password (Use the same password that you use to login to your computer or install programs) and press Enter
  • Type the following commend into your terminal
sudo update-ca-certificates
  • Make sure that in the output of commend said that 1 added(Like the example in the picture)

How To import Certificate Authority into Google Chrome browser


  • For adding certificate to google chrome, first open the google chrome


  • Open the top left menu bar and click on Settings
  • Search for cert on top right corner search bar


  • Click on Manage Certificates
  • Go Under Authorities section


  • Click on import
  • Navigate to Desktop and select the Computerisms.Root.Certificate.crt


  • Click on open
  • Set the check all the option and click on OK


  • Note that the last option "Trust this certificate for identifying software makers" is not required and you can check, or leave it as you wish but the other 2 options are necessarily in order to make it work

How To import Certificate Authority into Firefox browser


  • Open your Fire Fox browser for adding the certificate


  • Click on the Edit on the top menu bar and click on Preferences
  • Navigate to Advance menu on the left bar


  • Select Certificates on the top bar


  • Click on View Certificates
  • Go under Authorities menu on the top bar


  • Click on import
  • Navigate to Desktop and select the Computerisms.Root.Certificate.crt


  • Click on open
  • Set the check all the option and click on OK


  • Note that the last option "Trust this certificate for identifying software makers" is not required and you can check, or leave it as you wish but the other 2 options are necessarily in order to make it work

How To import Certificate Authority into Thunderbird mail client


  • Click on the Edit on the top menu bar and click on Preferences
  • Navigate to Advance on the top menu


  • Select Certificates on the top bar


  • Click on View Certificates
  • Go under Authorities menu on the top bar


  • Click on import
  • Navigate to Desktop and select the Computerisms.Root.Certificate.crt


  • Click on open
  • Set the check all the option and click on OK


  • Note that the last option "Trust this certificate for identifying software makers" is not required and you can check, or leave it as you wish but the other 2 options are necessarily in order to make it work