On 12Nov2008 22:30, Jeffrey Barish <[EMAIL PROTECTED]> wrote: | Cameron Simpson wrote: | > Or, more simply, get root to make an empty pid file once and chown it to | > the daemon user. Then the daemon can rewrite the file as needed. You need | > to move to truncating the file instead of removing it on daemon shutdown, | > but that is trivial. And no mucking with privileges, like starting the | > daemon as root instead of directly as the daemon user, need be done. | | Although the file locking that I described is happening during boot (which I | did not make clear), so I believe that the user is root already. | Accordingly, I need to drop privileges to a user anyway. Still, I like | your suggestion, so I'll remember it for another occasion.
Even during boot I tend to do this if its feasible, eg: # boot script, running as root >/var/run/thing.pid chown thingdaemon /var/run/thing.pid su thingdaemon -c 'start the daemon...' It avoids a lot of privilege code inside the daemon (presuming it doesn't need to do other privileged anyway). i.e. have the daemon be "just a tool" if possible. Cheers, -- Cameron Simpson <[EMAIL PROTECTED]> DoD#743 http://www.cskk.ezoshosting.com/cs/ -- http://mail.python.org/mailman/listinfo/python-list
