Oct  9 13:30:02 ssjiang CRON[1904061]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:30:02 ssjiang CRON[1904059]: pam_unix(cron:session): session closed for user root
Oct  9 13:31:01 ssjiang CRON[1942601]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:31:02 ssjiang CRON[1942601]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:31:08 ssjiang CRON[1904060]: pam_unix(cron:session): session closed for user root
Oct  9 13:32:01 ssjiang CRON[1944794]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:32:02 ssjiang CRON[1944794]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:33:01 ssjiang CRON[1944803]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:33:01 ssjiang CRON[1944803]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:34:01 ssjiang CRON[1944812]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:34:02 ssjiang CRON[1944812]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:35:01 ssjiang CRON[1944822]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:35:01 ssjiang CRON[1944823]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 13:35:01 ssjiang CRON[1944823]: pam_unix(cron:session): session closed for user root
Oct  9 13:35:01 ssjiang CRON[1944821]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 13:35:02 ssjiang CRON[1944822]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:36:01 ssjiang CRON[1984685]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:36:01 ssjiang CRON[1984685]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:36:05 ssjiang CRON[1944821]: pam_unix(cron:session): session closed for user root
Oct  9 13:37:01 ssjiang CRON[1985509]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:37:02 ssjiang CRON[1985509]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:38:01 ssjiang CRON[1985518]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:38:01 ssjiang CRON[1985518]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:39:01 ssjiang CRON[1985529]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:39:01 ssjiang CRON[1985528]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 13:39:01 ssjiang CRON[1985528]: pam_unix(cron:session): session closed for user root
Oct  9 13:39:02 ssjiang CRON[1985529]: pam_unix(cron:session): session closed for user www-data
Oct  9 13:40:01 ssjiang CRON[1985611]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 13:40:01 ssjiang CRON[1985608]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 13:40:01 ssjiang CRON[1985610]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 13:40:01 ssjiang CRON[1985611]: pam_unix(cron:session): session closed for user root
Oct  9 13:40:01 ssjiang CRON[1985609]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 13:40:02 ssjiang CRON[1985610]: pam_unix(cron:session): session closed for user www-data