if ($cookie_say != "hbnl"){ add_header Set-Cookie "say=hbnl"; rewrite .* "$scheme://$host$uri" redirect;}if ($cookie_say != "hbnl$remote_addr"){ add_header Set-Cookie "say=hbnl$remote_addr"; rewrite .* "$scheme://$host$uri" redirect;}rewrite_by_lua ‘ local random = ngx.var.cookie_random if(random == nil) then random = math.random(999999) end local token = ngx.md5("opencdn" .. ngx.var.remote_addr .. random) if (ngx.var.cookie_token ~= token) then ngx.header["Set-Cookie"] = {"token=" .. token, "random=" .. random} return ngx.redirect(ngx.var.scheme .. "://" .. ngx.var.host .. ngx.var.uri) end‘;http://drops.wooyun.org/tips/734 参考
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原文：http://liang3391.blog.51cto.com/178205/1581816