Oct  9 22:20:02 ssjiang CRON[2027937]: pam_unix(cron:session): session closed for user root
Oct  9 22:21:01 ssjiang CRON[2067779]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:21:02 ssjiang CRON[2067779]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:21:06 ssjiang CRON[2027938]: pam_unix(cron:session): session closed for user root
Oct  9 22:22:01 ssjiang CRON[2068667]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:22:02 ssjiang CRON[2068667]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:23:01 ssjiang CRON[2068676]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:23:01 ssjiang CRON[2068676]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:24:01 ssjiang CRON[2068685]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:24:02 ssjiang CRON[2068685]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:25:01 ssjiang CRON[2068696]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 22:25:01 ssjiang CRON[2068694]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 22:25:01 ssjiang CRON[2068695]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:25:01 ssjiang CRON[2068696]: pam_unix(cron:session): session closed for user root
Oct  9 22:25:02 ssjiang CRON[2068695]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:26:01 ssjiang CRON[2107792]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:26:01 ssjiang CRON[2107792]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:26:06 ssjiang CRON[2068694]: pam_unix(cron:session): session closed for user root
Oct  9 22:27:01 ssjiang CRON[2109384]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:27:02 ssjiang CRON[2109384]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:28:01 ssjiang CRON[2109393]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:28:02 ssjiang CRON[2109393]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:29:01 ssjiang CRON[2109403]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:29:02 ssjiang CRON[2109403]: pam_unix(cron:session): session closed for user www-data
Oct  9 22:30:01 ssjiang CRON[2109412]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 22:30:01 ssjiang CRON[2109415]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  9 22:30:01 ssjiang CRON[2109414]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  9 22:30:01 ssjiang CRON[2109415]: pam_unix(cron:session): session closed for user root
Oct  9 22:30:01 ssjiang CRON[2109413]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)