Oct  6 10:00:02 ssjiang CRON[3028285]: pam_unix(cron:session): session closed for user root
Oct  6 10:00:02 ssjiang CRON[3028287]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:01:01 ssjiang CRON[3067901]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:01:02 ssjiang CRON[3067901]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:01:02 ssjiang CRON[3028286]: pam_unix(cron:session): session closed for user root
Oct  6 10:02:01 ssjiang CRON[3068326]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:02:02 ssjiang CRON[3068326]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:03:01 ssjiang CRON[3068338]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:03:02 ssjiang CRON[3068338]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:04:01 ssjiang CRON[3068347]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:04:01 ssjiang CRON[3068347]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:05:01 ssjiang CRON[3068356]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 10:05:01 ssjiang CRON[3068357]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:05:01 ssjiang CRON[3068358]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 10:05:01 ssjiang CRON[3068358]: pam_unix(cron:session): session closed for user root
Oct  6 10:05:02 ssjiang CRON[3068357]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:06:01 ssjiang CRON[3108131]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:06:02 ssjiang CRON[3068356]: pam_unix(cron:session): session closed for user root
Oct  6 10:06:02 ssjiang CRON[3108131]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:07:01 ssjiang CRON[3108385]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:07:02 ssjiang CRON[3108385]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:08:01 ssjiang CRON[3108394]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:08:01 ssjiang CRON[3108394]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:09:01 ssjiang CRON[3108476]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:09:01 ssjiang CRON[3108475]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 10:09:01 ssjiang CRON[3108475]: pam_unix(cron:session): session closed for user root
Oct  6 10:09:02 ssjiang CRON[3108476]: pam_unix(cron:session): session closed for user www-data
Oct  6 10:10:01 ssjiang CRON[3108486]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 10:10:01 ssjiang CRON[3108489]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 10:10:01 ssjiang CRON[3108488]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 10:10:01 ssjiang CRON[3108487]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 10:10:01 ssjiang CRON[3108489]: pam_unix(cron:session): session closed for user root