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Last active July 18, 2025 19:05
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How to Setup NPM to work with Zscaler on Mac
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how-to-setup-zscaler-npm-on-mac.md

  1. Get the Zscaler Root CA. You likely need permission from your IT dept, or for them to provide it for you. You may also search for it in Keychain Access on Mac.

  2. Convert the .crt file to a .pem file per this SO answer:

    openssl x509 -in /Users/useraccount/ZscalerRootCA.cer -out /Users/useraccount/ZscalerRootCA.cer

  3. Edit (or create if nonexistent) ~/.npmrc file (official npmrc docs):

    cafile=/Users/useraccount/ZscalerRootCA.cer

    OR Edit (or create if nonexistent) ~/.zshrc or ~/.bashrc and set a value for NODE_EXTRA_CA_CERTS:

    NODE_EXTRA_CA_CERTS=/Users/useraccount/ZscalerRootCA.cer

  4. That's it!

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