Oct  8 08:30:01 ssjiang CRON[353685]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:30:02 ssjiang CRON[353683]: pam_unix(cron:session): session closed for user root
Oct  8 08:31:01 ssjiang CRON[393479]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:31:01 ssjiang CRON[393479]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:31:03 ssjiang CRON[353684]: pam_unix(cron:session): session closed for user root
Oct  8 08:32:01 ssjiang CRON[394135]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:32:02 ssjiang CRON[394135]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:33:01 ssjiang CRON[394144]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:33:02 ssjiang CRON[394144]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:34:01 ssjiang CRON[394153]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:34:02 ssjiang CRON[394153]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:35:01 ssjiang CRON[394163]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:35:01 ssjiang CRON[394162]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 08:35:01 ssjiang CRON[394164]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 08:35:01 ssjiang CRON[394164]: pam_unix(cron:session): session closed for user root
Oct  8 08:35:01 ssjiang CRON[394163]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:36:00 ssjiang CRON[394162]: pam_unix(cron:session): session closed for user root
Oct  8 08:36:00 ssjiang CRON[434614]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:36:00 ssjiang CRON[434614]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:37:01 ssjiang CRON[434623]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:37:02 ssjiang CRON[434623]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:38:01 ssjiang CRON[434632]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:38:02 ssjiang CRON[434632]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:39:01 ssjiang CRON[434642]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 08:39:01 ssjiang CRON[434642]: pam_unix(cron:session): session closed for user root
Oct  8 08:39:01 ssjiang CRON[434643]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:39:02 ssjiang CRON[434643]: pam_unix(cron:session): session closed for user www-data
Oct  8 08:40:01 ssjiang CRON[434725]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 08:40:01 ssjiang CRON[434722]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 08:40:01 ssjiang CRON[434724]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 08:40:01 ssjiang CRON[434723]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 08:40:01 ssjiang CRON[434725]: pam_unix(cron:session): session closed for user root