Oct  8 22:00:02 ssjiang CRON[2719746]: pam_unix(cron:session): session closed for user root
Oct  8 22:00:02 ssjiang CRON[2719748]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:01:00 ssjiang CRON[2719747]: pam_unix(cron:session): session closed for user root
Oct  8 22:01:00 ssjiang CRON[2760196]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:01:00 ssjiang CRON[2760196]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:02:01 ssjiang CRON[2760205]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:02:02 ssjiang CRON[2760205]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:03:01 ssjiang CRON[2760217]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:03:02 ssjiang CRON[2760217]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:04:01 ssjiang CRON[2760227]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:04:01 ssjiang CRON[2760227]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:05:01 ssjiang CRON[2760238]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 22:05:01 ssjiang CRON[2760237]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:05:01 ssjiang CRON[2760238]: pam_unix(cron:session): session closed for user root
Oct  8 22:05:01 ssjiang CRON[2760236]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 22:05:02 ssjiang CRON[2760237]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:06:01 ssjiang CRON[2760236]: pam_unix(cron:session): session closed for user root
Oct  8 22:06:01 ssjiang CRON[2800676]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:06:01 ssjiang CRON[2800676]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:07:01 ssjiang CRON[2800685]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:07:02 ssjiang CRON[2800685]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:08:01 ssjiang CRON[2800694]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:08:02 ssjiang CRON[2800694]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:09:01 ssjiang CRON[2800704]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 22:09:01 ssjiang CRON[2800705]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:09:01 ssjiang CRON[2800704]: pam_unix(cron:session): session closed for user root
Oct  8 22:09:01 ssjiang CRON[2800705]: pam_unix(cron:session): session closed for user www-data
Oct  8 22:10:01 ssjiang CRON[2800786]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 22:10:01 ssjiang CRON[2800785]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 22:10:01 ssjiang CRON[2800787]: pam_unix(cron:session): session opened for user www-data(uid=33) by (uid=0)
Oct  8 22:10:01 ssjiang CRON[2800788]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Oct  8 22:10:01 ssjiang CRON[2800788]: pam_unix(cron:session): session closed for user root
Oct  8 22:10:02 ssjiang CRON[2800787]: pam_unix(cron:session): session closed for user www-data