Oct  6 06:30:01 ssjiang CRON[1345160]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:30:02 ssjiang CRON[1345158]: pam_unix(cron:session): session closed for user root
Oct  6 06:31:01 ssjiang CRON[1384217]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:31:02 ssjiang CRON[1384217]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:31:06 ssjiang CRON[1345159]: pam_unix(cron:session): session closed for user root
Oct  6 06:32:01 ssjiang CRON[1385190]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:32:01 ssjiang CRON[1385190]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:33:01 ssjiang CRON[1385199]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:33:02 ssjiang CRON[1385199]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:34:01 ssjiang CRON[1385208]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:34:02 ssjiang CRON[1385208]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:35:01 ssjiang CRON[1385219]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 06:35:01 ssjiang CRON[1385217]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 06:35:01 ssjiang CRON[1385219]: pam_unix(cron:session): session closed for user root
Oct  6 06:35:01 ssjiang CRON[1385218]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:35:01 ssjiang CRON[1385218]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:36:01 ssjiang CRON[1423855]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:36:02 ssjiang CRON[1423855]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:36:07 ssjiang CRON[1385217]: pam_unix(cron:session): session closed for user root
Oct  6 06:37:01 ssjiang CRON[1425246]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:37:02 ssjiang CRON[1425246]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:38:01 ssjiang CRON[1425255]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:38:01 ssjiang CRON[1425255]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:39:01 ssjiang CRON[1425265]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 06:39:01 ssjiang CRON[1425266]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:39:01 ssjiang CRON[1425265]: pam_unix(cron:session): session closed for user root
Oct  6 06:39:02 ssjiang CRON[1425266]: pam_unix(cron:session): session closed for user www-data
Oct  6 06:40:01 ssjiang CRON[1425347]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 06:40:01 ssjiang CRON[1425346]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 06:40:01 ssjiang CRON[1425349]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 06:40:01 ssjiang CRON[1425348]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 06:40:01 ssjiang CRON[1425349]: pam_unix(cron:session): session closed for user root
Oct  6 06:40:02 ssjiang CRON[1425348]: pam_unix(cron:session): session closed for user www-data