Nginx快速入门

发布于:2022-12-27 ⋅ 阅读:(746) ⋅ 点赞:(0)

Nginx快速入门

使用背景:

  1. 当我们用户量增多时,我们需要使用多个服务器

    因此我们需要使用反向代理

  2. 我们的多台服务器型号不同时,我们可以通过负载均衡来协调

  3. nginx内存少,并发能力强

正向代理和反向代理

正向代理:例如开一个v p n就可以访问goo狗。

反向代理:访问一个域名,即可访问所有的服务器资源

nginx的安装

1. Windows安装

http://nginx.org/en/download.html

下载后解压

点击conf目录下的nginx.conf修改端口号:

在浏览器中打开:

2. Linux安装

http://nginx.org/en/download.html

上传到服务器

解压文件:

进入文件夹输入:

再执行一次make命令

成功

开启: cd /usr/local/nginx/sbin

进入该文件夹输入:./nginx

成功访问!!!

nginx常用命令

常用命令:

cd /usr/local/nginx/sbin 进入控制目录

./nginx 启动

./nginx -s stop 停止

./nginx -s quit 安全退出

./nginx -s reload 重新加载配置文件

ps aux|grep nginx 查看nginx进程

Nginx演示

1. 后端准备

我们这里为了方便直接用若依的前后端不分离版本:

下载地址:http://ruoyi.vip/

导入数据库后配置:

运行:

成功!!

我们再重新运行一个端口:

再次运行:

也成功了!

2.nginx配置

打开nginx.config

  • upstream:负载均衡配置
  • location配置:

再server上添加一个upstream:

upstream demo {
    server 127.0.0.1:9090 weight=1;
server 127.0.0.1:8089 weight=1;
}

在location里添加一个

proxy_pass http://demo;

在cmd里输入nginx -s reload重新加载

再次运行:

代理成功!!!!!


#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;
}


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;

    #gzip  on;
    # http

    upstream demo {
        server 127.0.0.1:9090 weight=1;
	server 127.0.0.1:8089 weight=1;
    }
    
    server {
        listen       8100;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
            proxy_pass http://demo;
        }

        #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;
        #}
    }


    # 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;
    #    }
    #}

}


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