Oct  8 20:00:03 ssjiang CRON[1747822]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:00:03 ssjiang CRON[1747820]: pam_unix(cron:session): session closed for user root
Oct  8 20:01:01 ssjiang CRON[1788041]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:01:02 ssjiang CRON[1747821]: pam_unix(cron:session): session closed for user root
Oct  8 20:01:02 ssjiang CRON[1788041]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:02:01 ssjiang CRON[1788282]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:02:02 ssjiang CRON[1788282]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:03:01 ssjiang CRON[1788294]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:03:01 ssjiang CRON[1788294]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:04:01 ssjiang CRON[1788303]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:04:02 ssjiang CRON[1788303]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:05:01 ssjiang CRON[1788314]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 20:05:01 ssjiang CRON[1788312]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 20:05:01 ssjiang CRON[1788313]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:05:01 ssjiang CRON[1788314]: pam_unix(cron:session): session closed for user root
Oct  8 20:05:02 ssjiang CRON[1788313]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:06:00 ssjiang CRON[1788312]: pam_unix(cron:session): session closed for user root
Oct  8 20:06:00 ssjiang CRON[1828753]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:06:00 ssjiang CRON[1828753]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:07:01 ssjiang CRON[1828762]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:07:02 ssjiang CRON[1828762]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:08:01 ssjiang CRON[1828771]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:08:02 ssjiang CRON[1828771]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:09:01 ssjiang CRON[1828781]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 20:09:01 ssjiang CRON[1828781]: pam_unix(cron:session): session closed for user root
Oct  8 20:09:01 ssjiang CRON[1828782]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:09:01 ssjiang CRON[1828782]: pam_unix(cron:session): session closed for user www-data
Oct  8 20:10:01 ssjiang CRON[1828862]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 20:10:01 ssjiang CRON[1828865]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 20:10:02 ssjiang CRON[1828865]: pam_unix(cron:session): session closed for user root
Oct  8 20:10:02 ssjiang CRON[1828863]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 20:10:02 ssjiang CRON[1828864]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 20:10:02 ssjiang CRON[1828864]: pam_unix(cron:session): session closed for user www-data