On Wed, Apr 15, 2015 at 5:01 PM, Matthew Miller <mattdm at mattdm.org> wrote: > On Wed, Apr 15, 2015 at 04:15:23PM -0500, Les Mikesell wrote: >> > Why does this directory have to be /tmp rather than a specific >> > directory belonging to twiki? >> Twiki is a perl web application run under apache. It doesn't have its >> own uid. It doesn't 'have' to be anywhere in particular but that is >> the way it was written and thus has very confusing results when trying >> to move it to CentOS 7. Is there some generic approach to fixing this >> kind of breakage (that is, to make it work and not confusing, not to >> say it was broken as designed)? To function as a backup, it >> probably shouldn't default to being in the same directory as the files >> it backs up. > > There are two (sane) options, I think. > > The first, and I think the best, is to configure twiki to share files > in some specific location rather than /tmp. It doesn't have to be the > same directory as the files being backed up — maybe something under > /var/lib/twiki (or /var/local/twiki). > > If the twiki backup plugin didn't allow this to be configured, I would > argue that it _is_ broken by design. But a quick Google search leads me > to <http://twiki.org/cgi-bin/view/Plugins/BackupRestorePlugin>, which > shows that it is indeed configurable, so I'm just going to call it a > questionable default. :) > > If you want to keep that default, though, the second approach would be > to configure Apache to not use a private namespace, which I don't > recommend because you lose the security benefit. To do that, put > > [Service] > PrivateTmp=false > > in /etc/systemd/system/httpd.service (which may not exist). > Thanks - I can see how those would work once you understand what is broken on the target system and why, but is there a way that programs 'should' be written to run with/without systemd? That just happened to be the first thing I've tried to move over that wasn't already packaged and adapted - I expect to hit many more. -- Les Mikesell lesmikesell at gmail.com