Oct  5 15:00:02 ssjiang CRON[2298509]: pam_unix(cron:session): session closed for user root
Oct  5 15:00:03 ssjiang CRON[2298511]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:01:01 ssjiang CRON[2335220]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:01:01 ssjiang CRON[2335220]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:01:09 ssjiang CRON[2298510]: pam_unix(cron:session): session closed for user root
Oct  5 15:02:01 ssjiang CRON[2338380]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:02:01 ssjiang CRON[2338380]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:03:01 ssjiang CRON[2338390]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:03:02 ssjiang CRON[2338390]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:04:01 ssjiang CRON[2338399]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:04:02 ssjiang CRON[2338399]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:05:01 ssjiang CRON[2338408]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 15:05:01 ssjiang CRON[2338410]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 15:05:01 ssjiang CRON[2338409]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:05:01 ssjiang CRON[2338410]: pam_unix(cron:session): session closed for user root
Oct  5 15:05:02 ssjiang CRON[2338409]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:06:01 ssjiang CRON[2377661]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:06:01 ssjiang CRON[2377661]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:06:03 ssjiang CRON[2338408]: pam_unix(cron:session): session closed for user root
Oct  5 15:07:01 ssjiang CRON[2378257]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:07:01 ssjiang CRON[2378257]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:08:01 ssjiang CRON[2378266]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:08:02 ssjiang CRON[2378266]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:09:01 ssjiang CRON[2378277]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 15:09:01 ssjiang CRON[2378278]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:09:01 ssjiang CRON[2378277]: pam_unix(cron:session): session closed for user root
Oct  5 15:09:02 ssjiang CRON[2378278]: pam_unix(cron:session): session closed for user www-data
Oct  5 15:10:01 ssjiang CRON[2378360]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 15:10:01 ssjiang CRON[2378362]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 15:10:01 ssjiang CRON[2378359]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 15:10:01 ssjiang CRON[2378361]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 15:10:01 ssjiang CRON[2378362]: pam_unix(cron:session): session closed for user root
Oct  5 15:10:02 ssjiang CRON[2378361]: pam_unix(cron:session): session closed for user www-data