If you have been asked to install the zScaler Root Certificate on your device, please follow the steps below as appropriate.


Mac


  • Download the Zscaler Root Certificate Zip file to your laptop
  • Un-zip the downloaded file (ZscalerRootCertificate-2048-SHA256.crt.zip) by double-clicking on it in your Downloads folder
  • Open the now un-zipped file (ZscalerRootCertificate-2048-SHA256.crt) by double-clicking on it in your Downloads folder
  • If you have the option of which keychain to add the certificate to, choose the "System" keychain
  • Enter your password to "Modify Keychain" if prompted
  • In the Keychain Access application that opens, search for "Zscaler" in the search bar in the top-right
  • Double click on the "Zscaler Root CA" certificate entry
  • Expand the "Trust" section
  • In the "When using this certificate" drop-down, select "Always Trust"
  • Close the "Zscaler Root CA" window and enter your password to "Update Settings" if prompted
  • You can now quit the Keychain Access application


Windows


  • Download the Zscaler Root Certificate Zip file to your laptop
  • Open the downloaded Zip file, then open the certificate file inside
  • In the dialog box that opens, click the "Install Certificate" button
  • Choose the Store Location as follows:
    • Current User - this will only install the certificate for you. Anyone else who uses the same laptop will also have to follow the install process.
    • Local Machine - this will install the certificate for all users. It will require you to have administrative rights on the computer.
  • When prompted, choose "Place all certificates in the following store" and click the "Browse" button
  • Select "Trusted Root Certification Authorities" and click "OK"
  • Click "Next" and then "Finish"
  • You can now close the Certificate dialog box


iOS / iPadOS


  • Download the Zscaler Root Certificate Zip file to your iPhone or iPad
  • Click on the Downloads icon (the blue down arrow) to the left of the URL
  • Choose the Downloads option from the pop-up menu
  • Open the downloaded Zip file, then open the certificate file inside
  • You should be shown a prompt "Profile Downloaded - Review the profile in Settings app if you want to install it."
  • Open the Settings app
  • Select the option "Profile Downloaded" at the top of the list
  • Select "Install" and follow the prompts to install the certificate
  • Once installed, go back to the main menu of the Settings app
  • Go to General > About > Certificate Trust Settings
  • Enable the Zscaler Root CA option, and click Continue at the warning prompt
  • You can now close the Settings app


Ubuntu Linux