Oct  8 09:50:01 ssjiang CRON[1001590]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:50:02 ssjiang CRON[1001588]: pam_unix(cron:session): session closed for user root
Oct  8 09:50:59 ssjiang CRON[1001589]: pam_unix(cron:session): session closed for user root
Oct  8 09:51:01 ssjiang CRON[1042030]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:51:01 ssjiang CRON[1042030]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:52:01 ssjiang CRON[1042040]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:52:02 ssjiang CRON[1042040]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:53:01 ssjiang CRON[1042051]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:53:02 ssjiang CRON[1042051]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:54:01 ssjiang CRON[1042061]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:54:01 ssjiang CRON[1042061]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:55:01 ssjiang CRON[1042070]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 09:55:02 ssjiang CRON[1042071]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:55:02 ssjiang CRON[1042072]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 09:55:02 ssjiang CRON[1042072]: pam_unix(cron:session): session closed for user root
Oct  8 09:55:02 ssjiang CRON[1042071]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:56:01 ssjiang CRON[1082159]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:56:02 ssjiang CRON[1082159]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:56:02 ssjiang CRON[1042070]: pam_unix(cron:session): session closed for user root
Oct  8 09:57:01 ssjiang CRON[1082519]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:57:02 ssjiang CRON[1082519]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:58:01 ssjiang CRON[1082528]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:58:02 ssjiang CRON[1082528]: pam_unix(cron:session): session closed for user www-data
Oct  8 09:59:01 ssjiang CRON[1082538]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 09:59:01 ssjiang CRON[1082538]: pam_unix(cron:session): session closed for user www-data
Oct  8 10:00:01 ssjiang CRON[1082547]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 10:00:01 ssjiang CRON[1082548]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 10:00:01 ssjiang CRON[1082549]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 10:00:01 ssjiang CRON[1082550]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 10:00:01 ssjiang CRON[1082550]: pam_unix(cron:session): session closed for user root