Oct  5 17:30:02 ssjiang CRON[3495292]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:30:03 ssjiang CRON[3495290]: pam_unix(cron:session): session closed for user root
Oct  5 17:31:01 ssjiang CRON[3532593]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:31:01 ssjiang CRON[3532593]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:31:08 ssjiang CRON[3495291]: pam_unix(cron:session): session closed for user root
Oct  5 17:32:01 ssjiang CRON[3535146]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:32:02 ssjiang CRON[3535146]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:33:01 ssjiang CRON[3535155]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:33:01 ssjiang CRON[3535155]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:34:01 ssjiang CRON[3535164]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:34:02 ssjiang CRON[3535164]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:35:01 ssjiang CRON[3535173]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:35:01 ssjiang CRON[3535175]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:35:01 ssjiang CRON[3535174]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:35:01 ssjiang CRON[3535175]: pam_unix(cron:session): session closed for user root
Oct  5 17:35:02 ssjiang CRON[3535174]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:36:01 ssjiang CRON[3573916]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:36:02 ssjiang CRON[3573916]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:36:06 ssjiang CRON[3535173]: pam_unix(cron:session): session closed for user root
Oct  5 17:37:01 ssjiang CRON[3575024]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:37:02 ssjiang CRON[3575024]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:38:01 ssjiang CRON[3575033]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:38:01 ssjiang CRON[3575033]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:39:01 ssjiang CRON[3575044]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:39:01 ssjiang CRON[3575044]: pam_unix(cron:session): session closed for user root
Oct  5 17:39:01 ssjiang CRON[3575045]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:39:02 ssjiang CRON[3575045]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:40:01 ssjiang CRON[3575126]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:40:01 ssjiang CRON[3575128]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:40:01 ssjiang CRON[3575127]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:40:01 ssjiang CRON[3575125]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:40:01 ssjiang CRON[3575128]: pam_unix(cron:session): session closed for user root