配置Nginx实现简单防御cc攻击

wget https://github.com/openresty/lua-nginx-module/archive/master.zipunzip master.zip

#./configure /--user=nginx /--group=nginx /--prefix=/usr/local/gacp/nginx /--error-log-path=/data/logs/nginx/error/error.log /--http-log-path=/data/logs/nginx/access/access.log /--pid-path=/usr/local/gacp/nginx/conf/nginx.pid /--lock-path=/var/lock/nginx.lock /--with-http_flv_module /--with-http_stub_status_module /--with-http_ssl_module /--with-pcre /--with-http_realip_module /--with-http_gzip_static_module /--with-google_perftools_module /--with-file-aio /--add-module=../ngx_cache_purge-2.3 /--add-module=../lua-nginx-module-master# make && make install

http {.....limit_req_zone $cookie_token zone=session_limit:3m rate=1r/s;limit_req_zone $binary_remote_addr $uri zone=auth_limit:3m rate=1r/m;}server {listen 80;server_name localhost;access_log /data/logs/nginx/access/localhost.access.log main;error_log /data/logs/nginx/error/localhost.error.log;charset utf-8;client_max_body_size 75M;root /data/www;location / {limit_req zone=session_limit burst=5;rewrite_by_lua 'local random = ngx.var.cookie_randomif(random == nil) thenreturn ngx.redirect("/auth?url=" .. ngx.var.request_uri)endlocal token = ngx.md5("opencdn" .. ngx.var.remote_addr .. random)if(ngx.var.cookie_token ~= token) thenreturn ngx.redirect("/auth?url=" .. ngx.var.request_uri)end';}location /auth {limit_req zone=auth_limit burst=1;if ($arg_url = "") {return 403;}access_by_lua 'local random = math.random(9999)local token = ngx.md5("opencdn" .. ngx.var.remote_addr .. random)if(ngx.var.cookie_token ~= token) thenngx.header["Set-Cookie"] = {"token=" .. token, "random=" .. random}return ngx.redirect(ngx.var.arg_url)end';}}