Oct  8 11:00:03 ssjiang CRON[1568455]: pam_unix(cron:session): session closed for user root
Oct  8 11:00:03 ssjiang CRON[1568457]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:01:01 ssjiang CRON[1608619]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:01:02 ssjiang CRON[1608619]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:01:02 ssjiang CRON[1568456]: pam_unix(cron:session): session closed for user root
Oct  8 11:02:01 ssjiang CRON[1608914]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:02:01 ssjiang CRON[1608914]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:03:01 ssjiang CRON[1608927]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:03:02 ssjiang CRON[1608927]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:04:01 ssjiang CRON[1608936]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:04:02 ssjiang CRON[1608936]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:05:01 ssjiang CRON[1608946]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 11:05:01 ssjiang CRON[1608947]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:05:01 ssjiang CRON[1608948]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 11:05:01 ssjiang CRON[1608948]: pam_unix(cron:session): session closed for user root
Oct  8 11:05:01 ssjiang CRON[1608947]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:06:01 ssjiang CRON[1608946]: pam_unix(cron:session): session closed for user root
Oct  8 11:06:01 ssjiang CRON[1649386]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:06:02 ssjiang CRON[1649386]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:07:01 ssjiang CRON[1649395]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:07:01 ssjiang CRON[1649395]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:08:01 ssjiang CRON[1649404]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:08:02 ssjiang CRON[1649404]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:09:01 ssjiang CRON[1649414]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 11:09:01 ssjiang CRON[1649414]: pam_unix(cron:session): session closed for user root
Oct  8 11:09:01 ssjiang CRON[1649415]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:09:02 ssjiang CRON[1649415]: pam_unix(cron:session): session closed for user www-data
Oct  8 11:10:01 ssjiang CRON[1649498]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 11:10:01 ssjiang CRON[1649500]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 11:10:01 ssjiang CRON[1649499]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 11:10:01 ssjiang CRON[1649500]: pam_unix(cron:session): session closed for user root
Oct  8 11:10:01 ssjiang CRON[1649497]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 11:10:01 ssjiang CRON[1649499]: pam_unix(cron:session): session closed for user www-data