Oct  5 12:00:02 ssjiang CRON[862250]: pam_unix(cron:session): session closed for user root
Oct  5 12:00:02 ssjiang CRON[862252]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:01:01 ssjiang CRON[899467]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:01:02 ssjiang CRON[899467]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:01:09 ssjiang CRON[862251]: pam_unix(cron:session): session closed for user root
Oct  5 12:02:01 ssjiang CRON[902113]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:02:02 ssjiang CRON[902113]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:03:01 ssjiang CRON[902122]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:03:01 ssjiang CRON[902122]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:04:01 ssjiang CRON[902131]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:04:02 ssjiang CRON[902131]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:05:01 ssjiang CRON[902142]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:05:01 ssjiang CRON[902141]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 12:05:01 ssjiang CRON[902143]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 12:05:01 ssjiang CRON[902143]: pam_unix(cron:session): session closed for user root
Oct  5 12:05:02 ssjiang CRON[902142]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:06:01 ssjiang CRON[939261]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:06:01 ssjiang CRON[939261]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:06:08 ssjiang CRON[902141]: pam_unix(cron:session): session closed for user root
Oct  5 12:07:01 ssjiang CRON[941990]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:07:02 ssjiang CRON[941990]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:08:01 ssjiang CRON[941999]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:08:02 ssjiang CRON[941999]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:09:01 ssjiang CRON[942009]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 12:09:01 ssjiang CRON[942010]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:09:01 ssjiang CRON[942009]: pam_unix(cron:session): session closed for user root
Oct  5 12:09:01 ssjiang CRON[942010]: pam_unix(cron:session): session closed for user www-data
Oct  5 12:10:01 ssjiang CRON[942090]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 12:10:01 ssjiang CRON[942091]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 12:10:01 ssjiang CRON[942093]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  5 12:10:01 ssjiang CRON[942092]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  5 12:10:01 ssjiang CRON[942093]: pam_unix(cron:session): session closed for user root
Oct  5 12:10:02 ssjiang CRON[942092]: pam_unix(cron:session): session closed for user www-data