Oct  4 09:50:03 ssjiang CRON[947206]: pam_unix(cron:session): session closed for user root
Oct  4 09:51:01 ssjiang CRON[986670]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:51:01 ssjiang CRON[947207]: pam_unix(cron:session): session closed for user root
Oct  4 09:51:02 ssjiang CRON[986670]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:52:01 ssjiang CRON[986877]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:52:01 ssjiang CRON[986877]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:53:01 ssjiang CRON[986886]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:53:02 ssjiang CRON[986886]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:54:01 ssjiang CRON[986896]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:54:02 ssjiang CRON[986896]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:55:01 ssjiang CRON[986907]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:55:01 ssjiang CRON[986906]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 09:55:01 ssjiang CRON[986908]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 09:55:01 ssjiang CRON[986908]: pam_unix(cron:session): session closed for user root
Oct  4 09:55:02 ssjiang CRON[986907]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:56:01 ssjiang CRON[1025927]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:56:01 ssjiang CRON[1025927]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:56:03 ssjiang CRON[986906]: pam_unix(cron:session): session closed for user root
Oct  4 09:57:01 ssjiang CRON[1026575]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:57:02 ssjiang CRON[1026575]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:58:01 ssjiang CRON[1026584]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:58:01 ssjiang CRON[1026584]: pam_unix(cron:session): session closed for user www-data
Oct  4 09:59:01 ssjiang CRON[1026594]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 09:59:02 ssjiang CRON[1026594]: pam_unix(cron:session): session closed for user www-data
Oct  4 10:00:01 ssjiang CRON[1026607]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 10:00:01 ssjiang CRON[1026604]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 10:00:01 ssjiang CRON[1026606]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 10:00:01 ssjiang CRON[1026607]: pam_unix(cron:session): session closed for user root
Oct  4 10:00:01 ssjiang CRON[1026605]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)