Oct  7 13:00:02 ssjiang CRON[3477743]: pam_unix(cron:session): session closed for user root
Oct  7 13:00:02 ssjiang CRON[3477745]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:01:01 ssjiang CRON[3517371]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:01:02 ssjiang CRON[3517371]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:01:03 ssjiang CRON[3477744]: pam_unix(cron:session): session closed for user root
Oct  7 13:02:01 ssjiang CRON[3517963]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:02:02 ssjiang CRON[3517963]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:03:01 ssjiang CRON[3517975]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:03:02 ssjiang CRON[3517975]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:04:01 ssjiang CRON[3517985]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:04:01 ssjiang CRON[3517985]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:05:01 ssjiang CRON[3517995]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:05:01 ssjiang CRON[3517994]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 13:05:01 ssjiang CRON[3517996]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 13:05:01 ssjiang CRON[3517996]: pam_unix(cron:session): session closed for user root
Oct  7 13:05:02 ssjiang CRON[3517995]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:06:01 ssjiang CRON[3557398]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:06:02 ssjiang CRON[3557398]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:06:05 ssjiang CRON[3517994]: pam_unix(cron:session): session closed for user root
Oct  7 13:07:01 ssjiang CRON[3558202]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:07:02 ssjiang CRON[3558202]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:08:01 ssjiang CRON[3558211]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:08:01 ssjiang CRON[3558211]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:09:01 ssjiang CRON[3558292]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 13:09:01 ssjiang CRON[3558293]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:09:01 ssjiang CRON[3558292]: pam_unix(cron:session): session closed for user root
Oct  7 13:09:02 ssjiang CRON[3558293]: pam_unix(cron:session): session closed for user www-data
Oct  7 13:10:01 ssjiang CRON[3558303]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 13:10:01 ssjiang CRON[3558304]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 13:10:01 ssjiang CRON[3558306]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 13:10:01 ssjiang CRON[3558306]: pam_unix(cron:session): session closed for user root
Oct  7 13:10:01 ssjiang CRON[3558305]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 13:10:02 ssjiang CRON[3558305]: pam_unix(cron:session): session closed for user www-data