Oct  7 01:00:03 ssjiang CRON[1856501]: pam_unix(cron:session): session closed for user root
Oct  7 01:00:03 ssjiang CRON[1856503]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:01:01 ssjiang CRON[1896154]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:01:01 ssjiang CRON[1896154]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:01:02 ssjiang CRON[1856502]: pam_unix(cron:session): session closed for user root
Oct  7 01:02:02 ssjiang CRON[1896721]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:02:02 ssjiang CRON[1896721]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:03:01 ssjiang CRON[1896733]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:03:02 ssjiang CRON[1896733]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:04:01 ssjiang CRON[1896742]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:04:01 ssjiang CRON[1896742]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:05:01 ssjiang CRON[1896753]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 01:05:01 ssjiang CRON[1896751]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 01:05:01 ssjiang CRON[1896752]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:05:01 ssjiang CRON[1896753]: pam_unix(cron:session): session closed for user root
Oct  7 01:05:02 ssjiang CRON[1896752]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:06:01 ssjiang CRON[1896751]: pam_unix(cron:session): session closed for user root
Oct  7 01:06:01 ssjiang CRON[1936990]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:06:02 ssjiang CRON[1936990]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:07:01 ssjiang CRON[1936999]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:07:01 ssjiang CRON[1936999]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:08:01 ssjiang CRON[1937009]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:08:02 ssjiang CRON[1937009]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:09:01 ssjiang CRON[1937019]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 01:09:01 ssjiang CRON[1937020]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:09:01 ssjiang CRON[1937019]: pam_unix(cron:session): session closed for user root
Oct  7 01:09:02 ssjiang CRON[1937020]: pam_unix(cron:session): session closed for user www-data
Oct  7 01:10:01 ssjiang CRON[1937097]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 01:10:01 ssjiang CRON[1937100]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 01:10:01 ssjiang CRON[1937098]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 01:10:01 ssjiang CRON[1937099]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 01:10:01 ssjiang CRON[1937100]: pam_unix(cron:session): session closed for user root
Oct  7 01:10:01 ssjiang CRON[1937099]: pam_unix(cron:session): session closed for user www-data