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vi /etc/yum.repos.d/nginx.repo

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[nginx] 
name = nginx repo 
baseurl = https://nginx.org/packages/mainline/centos/7/$basearch/ 
gpgcheck = 0 
enabled = 1

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yum install -y nginx

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vim /etc/nginx/conf.d/default.conf

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server {
    listen       80;
    root   /usr/share/nginx/html;
    server_name  localhost;
    #charset koi8-r;
    #access_log  /var/log/nginx/log/host.access.log  main;
    #
    location / {
          index index.php index.html index.htm;
    }
    #error_page  404              /404.html;
    #redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
      root   /usr/share/nginx/html;
    }
    #pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ .php$ {
      fastcgi_pass   127.0.0.1:9000;
      fastcgi_index  index.php;
      fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
      include        fastcgi_params;
    }
}

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systemctl start nginx

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lsof -i tcp:80

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systemctl stop nginx

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systemctl enable nginx 

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http://服务器IP

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http://服务器IP：81