nginx服务器

nginx.conf配置

建议：自行找到对应
worker_processes  auto;    #工作进程：根据硬件调整

worker_connections  1024;    #工作进程的最大连接数量


#配置多站点    http中加入此行
include /路径/*.conf;    ＃主要是加入此行，如有则忽略


#在新建的.conf加入server
server
{
        listen 80;
        server_name 域名;
        location / {
	        root    地址;
            index  index.html;
        }
        error_page 404 /404.html;
		location = /40x.html{
            root   html;
		}
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
}

 

反向代理和网址

#反向代理
server {
        listen       80;
        server_name  域名;
        location / {
	        proxy_pass   http://127.0.0.1:8096;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
 }
 
 
#网站
server {
        listen       80;
        server_name  域名;
        root	F:/resources;
        index  index.html index.htm;
 }

 

跨域

#nginx设置允许跨域
#*代表接受任意域名的请求
add_header Access-Control-Allow-Origin *;
#是否允许发送Cookie
add_header Access-Control-Allow-Credentials 'true';
#请求类型
add_header Access-Control-Allow-Methods 'GET,POST,OPTIONS';
#预检请求
add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
#自定义请求头无法操作
add_header Access-Control-Expose-Headers 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';

注：目标URL就是在Tomcat上域名/IP

Nginx反爬虫处理

1.进入到nginx安装目录下的conf目录，将如下代码保存为 agent_deny.conf

#禁止Scrapy等工具的抓取
if ($http_user_agent ~* (Scrapy|Curl|HttpClient)) {
     return 403;
}
#禁止指定UA及UA为空的访问
if ($http_user_agent ~* "FeedDemon|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms|^$" ) {
     return 403;             
}
#禁止非GET|HEAD|POST方式的抓取
if ($request_method !~ ^(GET|HEAD|POST)$) {
    return 403;
}
# 禁止百度及谷歌等
if ($http_user_agent ~* "qihoobot|Baiduspider|Googlebot|Googlebot-Mobile|Googlebot-Image|Mediapartners-Google|Adsbot-Google|Feedfetcher-Google|Yahoo! Slurp|Yahoo! Slurp China|YoudaoBot|Sosospider|Sogou spider|Sogou web spider|MSNBot|ia_archiver|Tomato Bot”)  {
    return 403;
}
2.然后，在网站相关配置中的 server段插入如下代码：

include agent_deny.conf;

3.保存后，执行如下命令，平滑重启nginx即可：

/usr/local/nginx/sbin/nginx -s reload

 

负载均衡

upstream配置：

在http配置下增加upstream配置即可：

upstream nodes {
#监控server的80端口，weigh为权重，2每访问两次，3访问一词

server 192.168.0.1:8080 weigh=2;

server 192.168.0.2:8080;

}


#server配置
location / {  
        proxy_pass http://nodes;  
        index  index.html index.htm;  
}