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tldr/pages/linux/update-ca-certificates.md
Emmanuel Ferdman 383504ffc4 update-ca-certificates: add page (#21398)
Signed-off-by: Emmanuel Ferdman <emmanuelferdman@gmail.com>
2026-03-10 09:38:34 +07:00

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update-ca-certificates

Update the CA certificates bundle and regenerate /etc/ssl/certs. More information: https://manned.org/update-ca-certificates.

  • Update certificates:

sudo update-ca-certificates

  • Update certificates in verbose mode:

sudo update-ca-certificates {{[-v|--verbose]}}

  • Perform a fresh update (remove all symlinks and regenerate):

sudo update-ca-certificates {{[-f|--fresh]}}

  • Add a custom certificate (copy it first, then update):

sudo cp {{path/to/certificate.crt}} /usr/local/share/ca-certificates/ && sudo update-ca-certificates