Oct  6 05:00:02 ssjiang CRON[623775]: pam_unix(cron:session): session closed for user root
Oct  6 05:00:02 ssjiang CRON[623777]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:01:01 ssjiang CRON[663079]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:01:02 ssjiang CRON[663079]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:01:05 ssjiang CRON[623776]: pam_unix(cron:session): session closed for user root
Oct  6 05:02:01 ssjiang CRON[663815]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:02:01 ssjiang CRON[663815]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:03:01 ssjiang CRON[663827]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:03:02 ssjiang CRON[663827]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:04:01 ssjiang CRON[663837]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:04:02 ssjiang CRON[663837]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:05:01 ssjiang CRON[663847]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:05:01 ssjiang CRON[663846]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 05:05:01 ssjiang CRON[663848]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 05:05:01 ssjiang CRON[663848]: pam_unix(cron:session): session closed for user root
Oct  6 05:05:02 ssjiang CRON[663847]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:06:01 ssjiang CRON[703138]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:06:01 ssjiang CRON[703138]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:06:04 ssjiang CRON[663846]: pam_unix(cron:session): session closed for user root
Oct  6 05:07:01 ssjiang CRON[703874]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:07:02 ssjiang CRON[703874]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:08:01 ssjiang CRON[703883]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:08:01 ssjiang CRON[703883]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:09:01 ssjiang CRON[703894]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 05:09:01 ssjiang CRON[703894]: pam_unix(cron:session): session closed for user root
Oct  6 05:09:01 ssjiang CRON[703895]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:09:02 ssjiang CRON[703895]: pam_unix(cron:session): session closed for user www-data
Oct  6 05:10:01 ssjiang CRON[703975]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 05:10:01 ssjiang CRON[703976]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 05:10:01 ssjiang CRON[703978]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 05:10:01 ssjiang CRON[703977]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 05:10:01 ssjiang CRON[703978]: pam_unix(cron:session): session closed for user root
Oct  6 05:10:02 ssjiang CRON[703977]: pam_unix(cron:session): session closed for user www-data