Nginx多域名代理以及Dnsmasq服务器部署

1、 ubuntu16.04下安装Nginx（通过ubuntu安装源进行安装）

$:sudo apt-get update
$:sudo apt-get install nginx

安装完成之后，通过:

$:nginx -v 可查看nginx软件版本

到此安装成功。说明：如果安装网络环境无法FQ，则可通过修改ubuntu安装源，再执行update和install操作。修改安装源具体步骤如下：

a、安装源原文件备份：

 $:sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

b、编辑源列表文件：

  $:sudo vim /etc/apt/sources.list

c、将该文件内容删除，然后添加如下内容（三者选其一）：

   阿里云安装源：
   deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
   deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
   deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
   deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
   deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
   deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
   deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

   或者：中科大安装源：
   deb http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse
   deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
   deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
   deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
   deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
   deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse
   deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
   deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
   deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
   deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse

   或者：网易163安装源：
   deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse

2、Nginx配置文件修改

a、编辑nginx.conf配置文件：

 $:vim /etc/nginx/nginx.conf 

文件内容如下：

    user www www;
    #user nobody nobody;
    worker_processes  4;

    #error_log  logs/error.log;
    #error_log  logs/error.log  notice;
    #error_log  logs/error.log  info;

    #pid        logs/nginx.pid;


    events {
       worker_connections  1024;
    }


    http {
        include       mime.types;
        default_type  application/octet-stream;

        #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
        #                  '$status $body_bytes_sent "$http_referer" '
        #                  '"$http_user_agent" "$http_x_forwarded_for"';

        #access_log  logs/access.log  main;

        sendfile        on;
        #tcp_nopush     on;

        #keepalive_timeout  0;
        keepalive_timeout  65;
        client_max_body_size 100M;
        #gzip  on;

        #server {
        #    listen       80;
        #    server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        #    location / {
        #        root   html;
        #        index  index.html index.htm;
        #    }
        #       location ~ .php {
        #                       fastcgi_pass 127.0.0.1:9000;
        #                       fastcgi_index /index.php;
        #                       include /usr/local/nginx/conf/fastcgi_params;
        #                       fastcgi_split_path_info ^(.+.php)(/.+)$;
        #                       fastcgi_param PATH_INFO $fastcgi_path_info;
        #                       fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
        #                       fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        #       }

        #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   html;
        #    }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ .php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ .php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /.ht {
        #    deny  all;
        #}
        #}

        include ./vhosts/*.conf;

        # another virtual host using mix of IP-, name-, and port-based configuration
        #
        #server {
        #    listen       8000;
        #    listen       somename:8080;
        #    server_name  somename  alias  another.alias;

        #    location / {
        #        root   html;
        #        index  index.html index.htm;
        #    }
        #}


        # HTTPS server
        #
        #server {
        #    listen       443 ssl;
        #    server_name  localhost;

        #    ssl_certificate      cert.pem;
        #    ssl_certificate_key  cert.key;

        #    ssl_session_cache    shared:SSL:1m;
        #    ssl_session_timeout  5m;

        #    ssl_ciphers  HIGH:!aNULL:!MD5;
        #    ssl_prefer_server_ciphers  on;

        #    location / {
        #        root   html;
        #        index  index.html index.htm;
        #    }
        #}

    }

b、在nginx文件目录下添加vhost文件目录：

     /etc/nginx$:mkdir vhosts

c、在vhosts文件下添加serverA.conf、serverB.conf（根据实际需要，配置多少个域名就配置多少个.conf文件）

示例1：

    /etc/nginx/vhosts$:vim serverA.conf

编辑内容如下：

      server { 
          listen 80; 
          server_name www.A.com;       #绑定域名 
          index index.htm index.html index.php; #默认文件 
          root /opt/www/Aserver/dist/;       #网站根目录路径
          #include location.conf;         #调用其他规则，也可去除
        location / {
            add_header 'Access-Control-Allow-Origin' "*";
            add_header 'Access-Control-Allow-Credentials' "true";
            try_files $uri $uri/ /index.php?$query_string;
          }
          location /api {
            proxy_set_header Host $proxy_host;
            proxy_pass http://api.D.com;       #配置的接口域名
            proxy_buffer_size  128k;
            proxy_buffers   32 32k;
            proxy_busy_buffers_size 128k;
          }	
          location ~ .php {
	            fastcgi_pass 127.0.0.1:9000;
	            fastcgi_index /index.html;        #网站根目录路径下的index.htm index.html index.php，根据实际已有文件去填
	            include /etc/nginx/fastcgi_params;  #根据实际nginx安装路径去填写
	            fastcgi_split_path_info ^(.+.php)(/.+)$;
	            fastcgi_param PATH_INFO $fastcgi_path_info;
	            fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
	            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            }
        }

示例2：

    /etc/nginx/vhosts$:vim serverB.conf

编辑内容如下：

      server { 
          listen 80; 
          server_name www.B.com api.D.com;       #绑定域名(绑定2个域名，中间空格间隔开，api开头的可作为接口域名：见示例1) 
          index index.htm index.html index.php; #默认文件 
          root /opt/www/Bserver/public/;       #网站根目录
        location / {
             add_header 'Access-Control-Allow-Origin' "*";
             add_header 'Access-Control-Allow-Credentials' "true";
             try_files $uri $uri/ /index.php?$query_string;
            }
          location ~ .php {
	            fastcgi_pass 127.0.0.1:9000;
	            fastcgi_index /index.php;         #网站根目录路径下的index.htm index.html index.php，根据实际已有文件去填
	            include /etc/nginx/fastcgi_params;       #根据实际nginx安装路径去填写 
	            fastcgi_split_path_info ^(.+.php)(/.+)$;
	            fastcgi_param PATH_INFO $fastcgi_path_info;
	            fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
	            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            }
        }

示例3：

    /etc/nginx/vhosts$:vim serverC.conf

编辑内容如下：

      server { 
          listen 80; 
          server_name www.C.com;       #绑定域名 
          index index.htm index.html index.php; #默认文件 
          root /opt/www/Cserver/dist/;       #网站根目录
          #include location.conf;         #调用其他规则，也可去除
        location / {
            add_header 'Access-Control-Allow-Origin' "*";
            add_header 'Access-Control-Allow-Credentials' "true";
            try_files $uri $uri/ /index.php?$query_string;
          }
          location ~ .php {
	            fastcgi_pass 127.0.0.1:9000;
	            fastcgi_index /index.html;    #网站根目录路径下的index.htm index.html index.php，根据实际已有文件去填
	            include /etc/nginx/fastcgi_params;  #根据实际nginx安装路径去填写
	            fastcgi_split_path_info ^(.+.php)(/.+)$;
	            fastcgi_param PATH_INFO $fastcgi_path_info;
	            fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
	            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            }
        }

说明：示例1、2、3中，其中3最为简单，配置单任意域名网站；示例1示例2中，示例2的其中一个域名作为示例1的接口域名，方便示例1调用示例2的接口。【在配置时根据实际需要需配置自己所需的域名】

d、配置好nginx代理服务器后，在nginx/sbin目录下使用如下命令：

  nginx/sbin$:./nginx -t    #测试是否成功
  nginx/sbin$:./nginx -s reload  #重启nginx服务

e、在/etc/hosts文件中，编辑添加配置的域名：

    IP www.A.com
    IP www.B.com
    IP www.C.com
    IP api.D.com

说明：IP指部署网站所在的服务器的IP地址，如网站部署在192.168.5.10上，则IP就设为该IP地址

3、Dnsmasq服务器配置

a、安装Dnsmasq：

  $:sudo apt-get install dnsmasq

b、编辑dnsmasq的配置文件：

  $:sudo vi /etc/dnsmasq.conf
  
  # or if you want it to read another file, as well as /etc/hosts, use
  # this.
  #addn-hosts=/etc/banner_add_hosts
  addn-hosts=/etc/hosts   #将此行取消注释

b、重启Dnsmasq服务：

  $:systemctl restart dnsmasq

4、测试局域网是否能正常访问（两种方法）

方法a、将所有局域网内的客户端网络DNS均设为Dnsmasq服务器IP地址 打开网络和共享中心->本地连接->属性->IPV4->使用下面的DNS服务器地址，将Dnsmasq服务器IP地址填入 浏览器分别打开

          www.A.com
          www.B.com
          www.C.com
          api.D.com

观察能否正常访问。

方法b、所有局域网客户端电脑配置host文件 计算机->C盘（系统盘锁在位置）->windows->System32->drivers->etc，编辑添加hosts文件，内容同2中的e，完成后保存。

          IP www.A.com
          IP www.B.com
          IP www.C.com
          IP api.D.com

说明：IP指部署网站所在的服务器的IP地址，如网站部署在192.168.5.10上，则IP就设为该IP地址 浏览器分别打开www.A.com;www.B.com;www.C.com;api.D.com，观察能否正常访问