Centos 安装 Nginx

安装Nginx

安装Nginx

配置nginx源

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# 执行如下命令
rpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

执行以下命令开始安装

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yum install -y nginx

# 启动nginx
systemctl start nginx
# nginx开机自启动
systemctl enable nginx

Nginx配置文件

一般配置

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server {
    listen       7000;
    server_name  localhost;

	location / {
        root   /opt/hf-gps/html; # 路径
        index  index.html index.htm;
        try_files $uri $uri/ /index.html;
        index index.html;
    }

	# 反向代理
    location /api {
       proxy_set_header Host $http_host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_pass http://127.0.0.1:60000;
    }
}

SSL配置

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server {
	
	listen 10003 ;
    server_name  js.wxlxhf.com;
    listen 10004 ssl;
    
    ssl_certificate    /opt/cert/js.wxlxhf.com.pem;
    ssl_certificate_key    /opt/cert/js.wxlxhf.com.key;
    ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
    ssl_ciphers EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    add_header Strict-Transport-Security "max-age=31536000";
    error_page 497  https://$host$request_uri;    

    # 管理-路由
    location / {
        root   /opt/hf-gps/html;
        index  index.html index.htm;
        try_files $uri $uri/ /index.html;
        index index.html;
    }
    # 后台地址
    location /prod-api/ {
       proxy_set_header Host $http_host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_pass  http://127.0.0.1:7001/ ;
    }
   
}

转发服务

添加stream模块

查看是否添加该模块

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nginx -V

搜索是否包含--with-stream,如果包含则已添加过此模块。

如果没有需要编译添加

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./configure  --prefix=/etc/nginx --with-stream
make && make install

注意

--prefix=/etc/nginx 是nginx的执行文件位置，根据自己的服务器的实际情况配置。

转发TCP(Mysql)配置

假如Nginx的公网IP为110.119.120.121,Mysql所在的同一个内网的内网IP为192.168.1.20

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#stream配置
stream {
    server {
       listen 13306; 
       proxy_connect_timeout 1s;
       proxy_timeout 3s;
       proxy_pass 192.168.1.20:3306;    
    }
}

http {
}

这样我们就能通过110.119.120.121:13306访问到Mysql服务了。

注意

  1. stream配置项和http同级。
  2. 不支持不同域名转发不同Mysql的功能。

这样做的好处

  • 避免数据库服务器直接暴漏在公网
  • 方便数据库秒级切换

UDP负载均衡

下面就是UDP负载均衡的示例

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#user  nobody;
worker_processes  1;

#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;
}

stream {
    upstream dns {
       server 192.168.111.99:10086;
       server 192.168.111.100:10086;
    }

    server {
        listen 192.168.111.98:10086 udp;
        proxy_responses 1;
        proxy_timeout 20s;
        proxy_bind $server_addr:$remote_port;
        proxy_pass dns;
    }
}