Oct  6 15:00:02 ssjiang CRON[1239407]: pam_unix(cron:session): session closed for user root
Oct  6 15:00:02 ssjiang CRON[1239409]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:01:01 ssjiang CRON[1278850]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:01:02 ssjiang CRON[1278850]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:01:04 ssjiang CRON[1239408]: pam_unix(cron:session): session closed for user root
Oct  6 15:02:01 ssjiang CRON[1279446]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:02:01 ssjiang CRON[1279446]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:03:01 ssjiang CRON[1279464]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:03:02 ssjiang CRON[1279464]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:04:01 ssjiang CRON[1279473]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:04:02 ssjiang CRON[1279473]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:05:01 ssjiang CRON[1279485]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:05:01 ssjiang CRON[1279483]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:05:01 ssjiang CRON[1279484]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:05:01 ssjiang CRON[1279485]: pam_unix(cron:session): session closed for user root
Oct  6 15:05:01 ssjiang CRON[1279484]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:06:01 ssjiang CRON[1318796]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:06:02 ssjiang CRON[1318796]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:06:04 ssjiang CRON[1279483]: pam_unix(cron:session): session closed for user root
Oct  6 15:07:01 ssjiang CRON[1319512]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:07:02 ssjiang CRON[1319512]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:08:01 ssjiang CRON[1319524]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:08:02 ssjiang CRON[1319524]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:09:01 ssjiang CRON[1319534]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:09:01 ssjiang CRON[1319535]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:09:01 ssjiang CRON[1319534]: pam_unix(cron:session): session closed for user root
Oct  6 15:09:02 ssjiang CRON[1319535]: pam_unix(cron:session): session closed for user www-data
Oct  6 15:10:01 ssjiang CRON[1319619]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:10:01 ssjiang CRON[1319619]: pam_unix(cron:session): session closed for user root
Oct  6 15:10:01 ssjiang CRON[1319618]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 15:10:01 ssjiang CRON[1319617]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 15:10:01 ssjiang CRON[1319616]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)