A new version of the CERN-CA-certs package is available in the QA environment.
The new package removes the older certificates of the CERN Certification Authority. Please make sure to test your services and software with the new package.
Full details are available on the SSB entry: OTG0077330.

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Enable Prompt for Certificate in Internet Explorer


By default, Internet Explorer does not prompt to send a certificate if only one certificate is present. If a valid certificate matches site requirements, it is automatically sent.
This is useful for basic users, for who authentication is transparent, but some users might need an alternative authentication.


  • Run Internet Explorer
  • Menu Tools -> Internet Options
  • Select Tab Security
  • Select Local Intranet (if connected at CERN on the CERN domain, otherwise select Internet)
  • Click Custom Level
  • Find the Miscellaneous part
  • Check Disable for Don't prompt for client certificate selection when no certificates or only one certificate exists.
  • Click Ok -> Ok

Now when entering a Website asking for a certificate, you will be prompted for a certificate selection. Click cancel and you will enter the website anonymously.

Created: 3/10/2020
Last reviewed: 5/2/2022
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