Oct  7 10:20:02 ssjiang CRON[2189677]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:20:02 ssjiang CRON[2189675]: pam_unix(cron:session): session closed for user root
Oct  7 10:21:01 ssjiang CRON[2228940]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:21:02 ssjiang CRON[2228940]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:21:06 ssjiang CRON[2189676]: pam_unix(cron:session): session closed for user root
Oct  7 10:22:01 ssjiang CRON[2229888]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:22:01 ssjiang CRON[2229888]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:23:01 ssjiang CRON[2229897]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:23:02 ssjiang CRON[2229897]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:24:01 ssjiang CRON[2229906]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:24:02 ssjiang CRON[2229906]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:25:01 ssjiang CRON[2229916]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:25:01 ssjiang CRON[2229915]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 10:25:01 ssjiang CRON[2229917]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 10:25:01 ssjiang CRON[2229917]: pam_unix(cron:session): session closed for user root
Oct  7 10:25:02 ssjiang CRON[2229916]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:26:01 ssjiang CRON[2268533]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:26:01 ssjiang CRON[2268533]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:26:06 ssjiang CRON[2229915]: pam_unix(cron:session): session closed for user root
Oct  7 10:27:01 ssjiang CRON[2270124]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:27:02 ssjiang CRON[2270124]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:28:01 ssjiang CRON[2270133]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:28:02 ssjiang CRON[2270133]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:29:01 ssjiang CRON[2270143]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:29:02 ssjiang CRON[2270143]: pam_unix(cron:session): session closed for user www-data
Oct  7 10:30:01 ssjiang CRON[2270154]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 10:30:01 ssjiang CRON[2270156]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 10:30:01 ssjiang CRON[2270155]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 10:30:01 ssjiang CRON[2270153]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 10:30:01 ssjiang CRON[2270156]: pam_unix(cron:session): session closed for user root
Oct  7 10:30:01 ssjiang CRON[2270155]: pam_unix(cron:session): session closed for user www-data