Oct  6 16:00:02 ssjiang CRON[1720311]: pam_unix(cron:session): session closed for user root
Oct  6 16:00:02 ssjiang CRON[1720313]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:01:01 ssjiang CRON[1760142]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:01:02 ssjiang CRON[1720312]: pam_unix(cron:session): session closed for user root
Oct  6 16:01:02 ssjiang CRON[1760142]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:02:01 ssjiang CRON[1760358]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:02:02 ssjiang CRON[1760358]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:03:01 ssjiang CRON[1760370]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:03:01 ssjiang CRON[1760370]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:04:01 ssjiang CRON[1760379]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:04:02 ssjiang CRON[1760379]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:05:01 ssjiang CRON[1760388]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:05:01 ssjiang CRON[1760390]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:05:01 ssjiang CRON[1760389]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:05:01 ssjiang CRON[1760390]: pam_unix(cron:session): session closed for user root
Oct  6 16:05:02 ssjiang CRON[1760389]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:06:01 ssjiang CRON[1799821]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:06:01 ssjiang CRON[1799821]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:06:03 ssjiang CRON[1760388]: pam_unix(cron:session): session closed for user root
Oct  6 16:07:01 ssjiang CRON[1800417]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:07:02 ssjiang CRON[1800417]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:08:01 ssjiang CRON[1800426]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:08:01 ssjiang CRON[1800426]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:09:01 ssjiang CRON[1800436]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:09:01 ssjiang CRON[1800437]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:09:01 ssjiang CRON[1800436]: pam_unix(cron:session): session closed for user root
Oct  6 16:09:02 ssjiang CRON[1800437]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:10:01 ssjiang CRON[1800521]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:10:01 ssjiang CRON[1800519]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:10:01 ssjiang CRON[1800520]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:10:01 ssjiang CRON[1800521]: pam_unix(cron:session): session closed for user root
Oct  6 16:10:01 ssjiang CRON[1800518]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:10:02 ssjiang CRON[1800520]: pam_unix(cron:session): session closed for user www-data