Numbas LTI - What permissions should exam package/zips have?

[Peter Steele]

Dear all,

During installation, the /srv/numbas-lti-* is set to 770 (rwxrwx---) recursively, but during normal staff usage we've observed that selected/uploaded exam zips stored in /srv/numbas-lti-media/exams have a mix of 600 (rw-------), 644 (rw-r--r--).

What is the correct permissions value? We have upgraded Numbas-LTI a few times now want to ensure the permissions are standardised correctly.

Thank you,

Peter Steele

[Christian Lawson-Perfect]

They just need to be readable by whichever user is serving them, which if you followed the installation instructions will be the user running nginx: www-data on ubuntu.

I'm not sure how they end up with different permissions - I can see the same thing on our server. Maybe it's packages that are fetched by the "replace exam package" tool, instead of uploaded by a user? The extracted files all have permissions of 644, so that might explain it.

I've put an issue about this on the GitHub repository: https://github.com/numbas/numbas-lti-provider/issues/165

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