Oct  4 01:00:02 ssjiang CRON[930594]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:00:03 ssjiang CRON[930592]: pam_unix(cron:session): session closed for user root
Oct  4 01:01:01 ssjiang CRON[969501]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:01:01 ssjiang CRON[969501]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:01:04 ssjiang CRON[930593]: pam_unix(cron:session): session closed for user root
Oct  4 01:02:01 ssjiang CRON[970274]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:02:02 ssjiang CRON[970274]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:03:01 ssjiang CRON[970283]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:03:02 ssjiang CRON[970283]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:04:01 ssjiang CRON[970292]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:04:01 ssjiang CRON[970292]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:05:01 ssjiang CRON[970303]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 01:05:01 ssjiang CRON[970301]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 01:05:01 ssjiang CRON[970302]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:05:01 ssjiang CRON[970303]: pam_unix(cron:session): session closed for user root
Oct  4 01:05:02 ssjiang CRON[970302]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:06:01 ssjiang CRON[1009339]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:06:02 ssjiang CRON[1009339]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:06:03 ssjiang CRON[970301]: pam_unix(cron:session): session closed for user root
Oct  4 01:07:01 ssjiang CRON[1009968]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:07:02 ssjiang CRON[1009968]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:08:01 ssjiang CRON[1009977]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:08:02 ssjiang CRON[1009977]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:09:01 ssjiang CRON[1009987]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 01:09:01 ssjiang CRON[1009987]: pam_unix(cron:session): session closed for user root
Oct  4 01:09:01 ssjiang CRON[1009988]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:09:01 ssjiang CRON[1009988]: pam_unix(cron:session): session closed for user www-data
Oct  4 01:10:01 ssjiang CRON[1010068]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 01:10:01 ssjiang CRON[1010065]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 01:10:01 ssjiang CRON[1010066]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  4 01:10:01 ssjiang CRON[1010068]: pam_unix(cron:session): session closed for user root
Oct  4 01:10:01 ssjiang CRON[1010067]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  4 01:10:02 ssjiang CRON[1010067]: pam_unix(cron:session): session closed for user www-data