Based on Thomas Leister's post -
How to import CA root certificates on Linux and Windows
and on Linux Cert Management (Chromium Docs)
Also got a tip from Grig "Punkie" Larson to have unique certificate-names
(see Installing a self-signed cert on a server, forcing Chrome on Linux to like it)
- Start > Manage computer certificates
- Go to: Trusted Root Certification Authorities > Certificates
- Select the entry you wish to export
(like: Websense Public Primary Certificate) - Choose: Action > All Tasks > Export...
- Click: [Next], [Next], [Browse]...
- Choose name and location for the certificate
(call it 'root.cert.cer' or something) - Click: [Next], [Finish]
- Close the Manage computer certificates window
- Get the certificate to the Linux machine
- Run a script to distribute the certificate to the right places:
Unix_Admin/bin/import_root_cert.sh <path-to-cert-file> [<certificate-name>]