Oct  6 11:00:03 ssjiang CRON[3509150]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:00:03 ssjiang CRON[3509148]: pam_unix(cron:session): session closed for user root
Oct  6 11:01:01 ssjiang CRON[3548482]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:01:02 ssjiang CRON[3548482]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:01:04 ssjiang CRON[3509149]: pam_unix(cron:session): session closed for user root
Oct  6 11:02:01 ssjiang CRON[3549186]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:02:02 ssjiang CRON[3549186]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:03:01 ssjiang CRON[3549199]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:03:01 ssjiang CRON[3549199]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:04:01 ssjiang CRON[3549208]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:04:02 ssjiang CRON[3549208]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:05:01 ssjiang CRON[3549219]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 11:05:01 ssjiang CRON[3549217]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 11:05:01 ssjiang CRON[3549219]: pam_unix(cron:session): session closed for user root
Oct  6 11:05:01 ssjiang CRON[3549218]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:05:02 ssjiang CRON[3549218]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:06:01 ssjiang CRON[3588558]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:06:02 ssjiang CRON[3588558]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:06:04 ssjiang CRON[3549217]: pam_unix(cron:session): session closed for user root
Oct  6 11:07:01 ssjiang CRON[3589246]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:07:02 ssjiang CRON[3589246]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:08:01 ssjiang CRON[3589256]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:08:01 ssjiang CRON[3589256]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:09:01 ssjiang CRON[3589336]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 11:09:01 ssjiang CRON[3589337]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:09:01 ssjiang CRON[3589336]: pam_unix(cron:session): session closed for user root
Oct  6 11:09:02 ssjiang CRON[3589337]: pam_unix(cron:session): session closed for user www-data
Oct  6 11:10:01 ssjiang CRON[3589347]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 11:10:01 ssjiang CRON[3589349]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  6 11:10:01 ssjiang CRON[3589348]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 11:10:01 ssjiang CRON[3589350]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  6 11:10:01 ssjiang CRON[3589350]: pam_unix(cron:session): session closed for user root
Oct  6 11:10:02 ssjiang CRON[3589349]: pam_unix(cron:session): session closed for user www-data