Oct  5 17:00:02 ssjiang CRON[3255929]: pam_unix(cron:session): session closed for user root
Oct  5 17:00:02 ssjiang CRON[3255931]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:01:01 ssjiang CRON[3293358]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:01:02 ssjiang CRON[3293358]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:01:08 ssjiang CRON[3255930]: pam_unix(cron:session): session closed for user root
Oct  5 17:02:01 ssjiang CRON[3295795]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:02:02 ssjiang CRON[3295795]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:03:01 ssjiang CRON[3295805]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:03:02 ssjiang CRON[3295805]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:04:01 ssjiang CRON[3295814]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:04:02 ssjiang CRON[3295814]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:05:01 ssjiang CRON[3295825]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:05:01 ssjiang CRON[3295823]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:05:01 ssjiang CRON[3295824]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:05:01 ssjiang CRON[3295825]: pam_unix(cron:session): session closed for user root
Oct  5 17:05:02 ssjiang CRON[3295824]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:06:01 ssjiang CRON[3333492]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:06:02 ssjiang CRON[3333492]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:06:07 ssjiang CRON[3295823]: pam_unix(cron:session): session closed for user root
Oct  5 17:07:01 ssjiang CRON[3335671]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:07:02 ssjiang CRON[3335671]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:08:01 ssjiang CRON[3335681]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:08:02 ssjiang CRON[3335681]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:09:01 ssjiang CRON[3335691]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:09:01 ssjiang CRON[3335692]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:09:01 ssjiang CRON[3335691]: pam_unix(cron:session): session closed for user root
Oct  5 17:09:01 ssjiang CRON[3335692]: pam_unix(cron:session): session closed for user www-data
Oct  5 17:10:01 ssjiang CRON[3335776]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:10:01 ssjiang CRON[3335773]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:10:01 ssjiang CRON[3335775]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 17:10:01 ssjiang CRON[3335774]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 17:10:01 ssjiang CRON[3335776]: pam_unix(cron:session): session closed for user root
Oct  5 17:10:02 ssjiang CRON[3335775]: pam_unix(cron:session): session closed for user www-data