Thank you for your reply. When executed by the following procedure, it was able to output the logger log to / var / log / messages. ‡@ Install syslog-ng ‡A Execute syslog-ng-config with administrator authority ‡B Started with "$ netstart syslog-ng" ‡C Log output with logger ‡D Confirm log is output to / var / log / messages Thank you very much. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple