Oct  9 20:00:02 ssjiang CRON[887362]: pam_unix(cron:session): session closed for user root
Oct  9 20:00:02 ssjiang CRON[887364]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:01:01 ssjiang CRON[927423]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:01:02 ssjiang CRON[927423]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:01:04 ssjiang CRON[887363]: pam_unix(cron:session): session closed for user root
Oct  9 20:02:01 ssjiang CRON[928063]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:02:01 ssjiang CRON[928063]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:03:01 ssjiang CRON[928072]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:03:02 ssjiang CRON[928072]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:04:01 ssjiang CRON[928084]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:04:02 ssjiang CRON[928084]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:05:01 ssjiang CRON[928095]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 20:05:01 ssjiang CRON[928095]: pam_unix(cron:session): session closed for user root
Oct  9 20:05:01 ssjiang CRON[928093]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 20:05:01 ssjiang CRON[928094]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:05:02 ssjiang CRON[928094]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:06:01 ssjiang CRON[968077]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:06:01 ssjiang CRON[968077]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:06:04 ssjiang CRON[928093]: pam_unix(cron:session): session closed for user root
Oct  9 20:07:01 ssjiang CRON[968782]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:07:01 ssjiang CRON[968782]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:08:01 ssjiang CRON[968792]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:08:02 ssjiang CRON[968792]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:09:01 ssjiang CRON[968815]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 20:09:01 ssjiang CRON[968816]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:09:01 ssjiang CRON[968815]: pam_unix(cron:session): session closed for user root
Oct  9 20:09:02 ssjiang CRON[968816]: pam_unix(cron:session): session closed for user www-data
Oct  9 20:10:01 ssjiang CRON[968886]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 20:10:01 ssjiang CRON[968883]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 20:10:01 ssjiang CRON[968884]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 20:10:01 ssjiang CRON[968885]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 20:10:01 ssjiang CRON[968886]: pam_unix(cron:session): session closed for user root