Hi Folks: I use a twistd server under Windows XP and Ubuntu. I am using Twisted 8.0. I am using log rotation. I essential copy the log example in Abe Fettig's book. On a sidenote, I read that logs changed under Twisted 8.1? Should I move to that? Under Windows XP, the programme runs as expected, it generates logs xxx.log, xxx.log.1, xxx.log.2 Under Ubuntu, it generates two sets of logs xxx.log, xxx.log.1 and twistd.log, twisted.log.1 I am not sure why. What am I missing? Any advice would be appreciated. here is a sample of what I do: class TheLog(log.FileLogObserver): def emit(self, logEntryDict): #if not logEntryDict.get('isError'): return log.FileLogObserver.emit(self, logEntryDict) class TheLogService(service.Service): def __init__(self, logName, logDir): self.logName = logName self.logDir = logDir self.maxLogSize = MAX_LOG_FILE_SIZE self.theLog = TheLogBuilder() def getLogger(self): return self.theLog def startService(self): # logfile is a file-like object that supports rotation self.logFile = logfile.LogFile( self.logName, self.logDir, rotateLength=self.maxLogSize) self.logFile.rotate() # force rotation each time restarted self.theLog = TheLog(self.logFile) self.theLog.start() def stopService(self): self.theLog.stop() self.logFile.close() del(self.logFile) Cheers, Andrew