https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19676 Bug ID: 19676 Summary: Debian 9 vs. Plack vs. /tmp -- attention to PrivateTmp for apache2 Change sponsored?: --- Product: Koha Version: unspecified Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 - low Component: Architecture, internals, and plumbing Assignee: koha-bugs@lists.koha-community.org Reporter: januszop@gmail.com QA Contact: testopia@bugs.koha-community.org Beware: in Debian 9 apache2 comes with PrivateTmp enabled by default. As a consequence, there are issues when Plack is enabled for an instance, but in Koha there is an interaction between Plack enabled and Plack blacklisted stuff through /tmp directory. Plack-ed scripts will write temporary files in "real" /tmp directory (as pointed by Koha::UploadedFile::temporary_directory, i.e. File::Spec->tmpdir) whereas Plack blacklisted scripts will understand /tmp as private tmp of apache2, i.e. /tmp/systemd-private-?????????-apache2.service-????/tmp. This happens for instance for stage-marc-import.pl -- in step 2 the script won't find the marc file uploaded in step 1. The simplest instant solution to this would be to disable PrivateTmp for apache2 (this article gives a clue: https://www.maxoberberger.net/blog/2017/10/debian-9-private-tmp.html), but maybe there is a better option? (When Plack is disabled everything seems to work fine apart of the fact that the private tmp of apache2 is being used.) -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.