Oct  7 22:00:02 ssjiang CRON[3631104]: pam_unix(cron:session): session closed for user root
Oct  7 22:00:02 ssjiang CRON[3631106]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:01:01 ssjiang CRON[3670583]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:01:02 ssjiang CRON[3670583]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:01:04 ssjiang CRON[3631105]: pam_unix(cron:session): session closed for user root
Oct  7 22:02:01 ssjiang CRON[3671324]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:02:02 ssjiang CRON[3671324]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:03:01 ssjiang CRON[3671338]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:03:02 ssjiang CRON[3671338]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:04:01 ssjiang CRON[3671347]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:04:01 ssjiang CRON[3671347]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:05:02 ssjiang CRON[3671358]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 22:05:02 ssjiang CRON[3671356]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 22:05:02 ssjiang CRON[3671357]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:05:02 ssjiang CRON[3671358]: pam_unix(cron:session): session closed for user root
Oct  7 22:05:02 ssjiang CRON[3671357]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:06:01 ssjiang CRON[3710791]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:06:02 ssjiang CRON[3710791]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:06:05 ssjiang CRON[3671356]: pam_unix(cron:session): session closed for user root
Oct  7 22:07:01 ssjiang CRON[3711564]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:07:02 ssjiang CRON[3711564]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:08:01 ssjiang CRON[3711573]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:08:01 ssjiang CRON[3711573]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:09:01 ssjiang CRON[3711584]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:09:01 ssjiang CRON[3711583]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 22:09:01 ssjiang CRON[3711583]: pam_unix(cron:session): session closed for user root
Oct  7 22:09:02 ssjiang CRON[3711584]: pam_unix(cron:session): session closed for user www-data
Oct  7 22:10:01 ssjiang CRON[3711666]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 22:10:01 ssjiang CRON[3711668]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  7 22:10:01 ssjiang CRON[3711667]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 22:10:01 ssjiang CRON[3711669]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  7 22:10:01 ssjiang CRON[3711669]: pam_unix(cron:session): session closed for user root