Oct  7 23:00:03 ssjiang CRON[4114133]: pam_unix(cron:session): session closed for user root
Oct  7 23:00:03 ssjiang CRON[4114135]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:01:01 ssjiang CRON[4153592]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:01:01 ssjiang CRON[4153592]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:01:04 ssjiang CRON[4114134]: pam_unix(cron:session): session closed for user root
Oct  7 23:02:01 ssjiang CRON[4154352]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:02:02 ssjiang CRON[4154352]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:03:01 ssjiang CRON[4154364]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:03:02 ssjiang CRON[4154364]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:04:01 ssjiang CRON[4154374]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:04:01 ssjiang CRON[4154374]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:05:01 ssjiang CRON[4154384]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 23:05:01 ssjiang CRON[4154385]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:05:01 ssjiang CRON[4154386]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 23:05:01 ssjiang CRON[4154386]: pam_unix(cron:session): session closed for user root
Oct  7 23:05:02 ssjiang CRON[4154385]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:06:01 ssjiang CRON[4191799]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:06:02 ssjiang CRON[4191799]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:06:09 ssjiang CRON[4154384]: pam_unix(cron:session): session closed for user root
Oct  7 23:07:01 ssjiang CRON[595]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:07:01 ssjiang CRON[595]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:08:01 ssjiang CRON[604]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:08:02 ssjiang CRON[604]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:09:01 ssjiang CRON[615]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:09:01 ssjiang CRON[614]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 23:09:01 ssjiang CRON[614]: pam_unix(cron:session): session closed for user root
Oct  7 23:09:02 ssjiang CRON[615]: pam_unix(cron:session): session closed for user www-data
Oct  7 23:10:01 ssjiang CRON[701]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 23:10:01 ssjiang CRON[699]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 23:10:01 ssjiang CRON[700]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 23:10:01 ssjiang CRON[702]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 23:10:01 ssjiang CRON[702]: pam_unix(cron:session): session closed for user root
Oct  7 23:10:02 ssjiang CRON[701]: pam_unix(cron:session): session closed for user www-data