Oct  7 20:00:03 ssjiang CRON[2665060]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:00:03 ssjiang CRON[2665058]: pam_unix(cron:session): session closed for user root
Oct  7 20:01:01 ssjiang CRON[2703508]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:01:02 ssjiang CRON[2703508]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:01:07 ssjiang CRON[2665059]: pam_unix(cron:session): session closed for user root
Oct  7 20:02:01 ssjiang CRON[2705278]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:02:02 ssjiang CRON[2705278]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:03:01 ssjiang CRON[2705291]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:03:01 ssjiang CRON[2705291]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:04:01 ssjiang CRON[2705300]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:04:02 ssjiang CRON[2705300]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:05:01 ssjiang CRON[2705310]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:05:01 ssjiang CRON[2705311]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 20:05:01 ssjiang CRON[2705309]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 20:05:01 ssjiang CRON[2705311]: pam_unix(cron:session): session closed for user root
Oct  7 20:05:02 ssjiang CRON[2705310]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:06:01 ssjiang CRON[2744501]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:06:01 ssjiang CRON[2744501]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:06:05 ssjiang CRON[2705309]: pam_unix(cron:session): session closed for user root
Oct  7 20:07:01 ssjiang CRON[2745517]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:07:02 ssjiang CRON[2745517]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:08:01 ssjiang CRON[2745526]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:08:02 ssjiang CRON[2745526]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:09:01 ssjiang CRON[2745537]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:09:01 ssjiang CRON[2745536]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 20:09:01 ssjiang CRON[2745536]: pam_unix(cron:session): session closed for user root
Oct  7 20:09:01 ssjiang CRON[2745537]: pam_unix(cron:session): session closed for user www-data
Oct  7 20:10:01 ssjiang CRON[2745618]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 20:10:01 ssjiang CRON[2745619]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 20:10:01 ssjiang CRON[2745620]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 20:10:01 ssjiang CRON[2745621]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 20:10:01 ssjiang CRON[2745621]: pam_unix(cron:session): session closed for user root
Oct  7 20:10:02 ssjiang CRON[2745620]: pam_unix(cron:session): session closed for user www-data