Oct  6 15:50:04 ssjiang CRON[1640195]: pam_unix(cron:session): session closed for user root
Oct  6 15:51:01 ssjiang CRON[1679571]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:51:01 ssjiang CRON[1679571]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:51:03 ssjiang CRON[1640196]: pam_unix(cron:session): session closed for user root
Oct  6 15:52:01 ssjiang CRON[1680227]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:52:02 ssjiang CRON[1680227]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:53:01 ssjiang CRON[1680236]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:53:02 ssjiang CRON[1680236]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:54:01 ssjiang CRON[1680246]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:54:01 ssjiang CRON[1680246]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:55:01 ssjiang CRON[1680257]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:55:01 ssjiang CRON[1680255]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:55:01 ssjiang CRON[1680257]: pam_unix(cron:session): session closed for user root
Oct  6 15:55:01 ssjiang CRON[1680256]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:55:02 ssjiang CRON[1680256]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:56:01 ssjiang CRON[1719751]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:56:02 ssjiang CRON[1719751]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:56:03 ssjiang CRON[1680255]: pam_unix(cron:session): session closed for user root
Oct  6 15:57:01 ssjiang CRON[1720283]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:57:01 ssjiang CRON[1720283]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:58:01 ssjiang CRON[1720292]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:58:02 ssjiang CRON[1720292]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:59:01 ssjiang CRON[1720302]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:59:02 ssjiang CRON[1720302]: pam_unix(cron:session): session closed for user www-data
Oct  6 16:00:01 ssjiang CRON[1720312]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:00:01 ssjiang CRON[1720314]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 16:00:01 ssjiang CRON[1720314]: pam_unix(cron:session): session closed for user root
Oct  6 16:00:01 ssjiang CRON[1720313]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 16:00:01 ssjiang CRON[1720311]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)