Oct  5 10:00:02 ssjiang CRON[4098793]: pam_unix(cron:session): session closed for user root
Oct  5 10:00:03 ssjiang CRON[4098795]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:01:01 ssjiang CRON[4136824]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:01:01 ssjiang CRON[4136824]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:01:07 ssjiang CRON[4098794]: pam_unix(cron:session): session closed for user root
Oct  5 10:02:01 ssjiang CRON[4138657]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:02:02 ssjiang CRON[4138657]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:03:01 ssjiang CRON[4138666]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:03:01 ssjiang CRON[4138666]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:04:01 ssjiang CRON[4138675]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:04:02 ssjiang CRON[4138675]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:05:01 ssjiang CRON[4138684]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 10:05:01 ssjiang CRON[4138685]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:05:01 ssjiang CRON[4138686]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 10:05:01 ssjiang CRON[4138686]: pam_unix(cron:session): session closed for user root
Oct  5 10:05:02 ssjiang CRON[4138685]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:06:01 ssjiang CRON[4176338]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:06:02 ssjiang CRON[4176338]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:06:08 ssjiang CRON[4138684]: pam_unix(cron:session): session closed for user root
Oct  5 10:07:01 ssjiang CRON[4178532]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:07:01 ssjiang CRON[4178532]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:08:01 ssjiang CRON[4178541]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:08:02 ssjiang CRON[4178541]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:09:01 ssjiang CRON[4178622]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 10:09:01 ssjiang CRON[4178623]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:09:01 ssjiang CRON[4178622]: pam_unix(cron:session): session closed for user root
Oct  5 10:09:02 ssjiang CRON[4178623]: pam_unix(cron:session): session closed for user www-data
Oct  5 10:10:01 ssjiang CRON[4178634]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 10:10:01 ssjiang CRON[4178633]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 10:10:01 ssjiang CRON[4178636]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 10:10:01 ssjiang CRON[4178635]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 10:10:01 ssjiang CRON[4178636]: pam_unix(cron:session): session closed for user root