# enable captcha check for CloudFlare (on|off, default is off) cloudflare_captcha off; # Use splashscreen as captcha for Chinese customers wscheck_splashscreen_as_captcha off; # Use these values for User ID hash wscheck_session_key $wsuserip$http_user_agent; # Search client address in the following places wscheck_ipsearch cloudflare|$http_cf_connecting_ip cloudflare|$http_true_client_ip !cloudflare|$http_x_forwarded_for; # Use this variable to check if client is a proxy wscheck_proxy_var_name remote_proxy;