valid_referers none blocked *.ttlsa.com server_names ~\.image\. ~\.baidu\.;    if ($invalid_referer) {        return 403;例如:server {        listen 80;        server_name test.image.xxxxxxx.com;        location / {                proxy_pass http://test.image_pools;                proxy_set_header Host           $host;                proxy_set_header X-Real-IP      $remote_addr;                proxy_set_header X-Forwoarded-For       $proxy_add_x_forwarded_for;                }    valid_referers none blocked *.ttlsa.com server_names ~\.image\. ~\.baidu\.;    if ($invalid_referer) {        return 403;    } }配置 到*.ttlsa.com的referer通过,如果有*.image.*,*.baidu.*的通过