Hi... I am having problems running the server as a daemon process... it works fine when running in the foreground (i.e. using "./run") Here is what happens... $ ./run -d Building PyXML... Building PyKerberos... Building PyOpenDirectory... Building select26... Building PyDirector... Using python as Python Starting server... exec python //Twisted/bin/twistd caldav -f /calendarserver/conf/ caldavd-dev.plist -o ProcessType=Combined /calendarserver/calendarserver/tap/caldav.py:48: DeprecationWarning: mktap and related support modules are deprecated as of Twisted 8.0. Use Twisted Application Plugins with the 'twistd' command directly, as described in 'Writing a Twisted Application Plugin for twistd' chapter of the Developer Guide. from twisted.scripts.mktap import getid Traceback (most recent call last): File "//Twisted/bin/twistd", line 19, in <module> run() File "//Twisted/twisted/scripts/twistd.py", line 27, in run app.run(runApp, ServerOptions) File "//Twisted/twisted/application/app.py", line 694, in run runApp(config) File "//Twisted/twisted/scripts/twistd.py", line 23, in runApp _SomeApplicationRunner(config).run() File "//Twisted/twisted/application/app.py", line 423, in run self.logger.start(None) File "//Twisted/twisted/application/app.py", line 251, in start observer = self._getLogObserver() File "//Twisted/twisted/scripts/_twistd_unix.py", line 140, in _getLogObserver logFile = logfile.LogFile.fromFullPath(self._logfilename) File "//Twisted/twisted/python/logfile.py", line 47, in fromFullPath os.path.dirname(logPath), *args, **kwargs) File "//Twisted/twisted/python/logfile.py", line 147, in __init__ BaseLogFile.__init__(self, name, directory, defaultMode) File "//Twisted/twisted/python/logfile.py", line 39, in __init__ self._openFile() File "//Twisted/twisted/python/logfile.py", line 152, in _openFile BaseLogFile._openFile(self) File "//Twisted/twisted/python/logfile.py", line 63, in _openFile self._file = file(self.path, "r+", 1) IOError: [Errno 13] Permission denied: '/calendarserver/logs/error.log' launchctl bsexec failed: No such file or directory I'm sure it's probably something fairly simple - I have tried removing the entries from the "run" script as detailed in http://tobyrush.blogspot.com/2007/11/dummies-guide-to-darwin-calendar-server... , but that doesn't seem to make a difference. One thing that does concern me is the header comments in the 'run' script, which are as follows: # WARNING: This script is intended for use by developers working on # the Calendar Server code base. It is not intended for use in a # deployment configuration. # # DO NOT use this script as a system startup tool (eg. in /etc/init.d, # /Library/StartupItems, launchd plists, etc.) # # For those uses, install the server properly (eg. with "./run -i # /tmp/foo && cd /tmp/foo && pax -pe -rvw . /") and use the caldavd # executable to start the server. ## This is very different to all the other instructions I have found detailing how to get it running.... Hopefully some kind soul will be able to shed some light. P.S While I am not a newby with Unix, I am very rusty.... Cheers!! Jem.