Nginx - 配置

https://blog.csdn.net/tsummerb/article/details/79248015 https://docs.nginx.com/nginx/admin-guide/security-controls/securing-http-traffic-upstream/

核心文件配置

• 全局配置
• events 模塊
• http 模塊
• upstream 模塊

Default /usr/local/etc/nginx/nginx.conf

#user  nobody;
worker_processes  1;

# error_log  /var/log/nginx/error.log info;
# error_log  /var/log/nginx/error.log notice;
# error_log  /var/log/nginx/error.log error;
# error_log  /var/log/nginx/error.log warn;

# pid        /var/run/nginx.pid;    # 記錄主進程的id
# worker_rlimit_nofile 65535;   # 每一個 nginx 進程能打開的最大文件數目

events {
    use epoll;
    worker_connections  1024;   # 單個 nginx 進程最大連接數
}


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

    client_header_buffer_size       1k;
    large_client_header_buffers     21k;
    client_body_buffer_size         16k;
    client_max_body_size            8m;


    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  /var/log/nginx/access.log  main;

    sendfile        on;
    tcp_nopush      on;
    tcp_nodelay     on;

    keepalive_requests  100000;     # 同一個連接接受最大請求數
    keepalive_timeout   120;        # 兩分鐘內可以使用同一個連接

    # gzip  on;

    upstream 127.0.0.1:8080 {
        server 127.0.0.1:3000;
        server 127.0.0.1:4000;
        server 127.0.0.1:5000;
    }

    server {
        listen       80;
        server_name  localhost; # server_name 需要代理的域名1 需要代理的域名2 需要代理的域名3，http 請求 header host 的值

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        # 路徑配置，可以是本地文件路徑，也可以是其他服務器的服務路徑

        # 圖片類的請求
        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
            expires 10d;
        }

        # 此域名的請求映射底下文件系統
        location / {
            root   /usr/share/nginx/html;
            index  index.html index.htm;
        }

        # 反向代理
        location /app {
            proxy_pass http://127.0.0.1:8080;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-FOR $proxy_add_x_forwarded_for;
        }

        #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;
        }

    }

    # 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;
    #    }
    #}
    
    include /etc/nginx/conf.d/*.conf;   # 用於配置文件合併，例如將 server {}, upstream {} 的相關配置寫在另一份文件存在 /etc/nginx/conf.d/my_server.conf
}