nginx分析默认配置(5)

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为nginx主配置文件添加注释，更好的理解nginx

nginx的默认加载 /usr/share/nginx/html/ 文件

1.nginx主配置文件

打开 vim /etc/nginx/nginx.conf

user  nginx;  #设置nginx服务的系统使用用户
worker_processes  1;  #工作进程数 默认设置和cpu相同就好了

error_log  /var/log/nginx/error.log warn;   #错误日志
pid        /var/run/nginx.pid;   #进程的pid


events {
    worker_connections  1024;    #每个进程允许最大连接数
}


http {
    include       /etc/nginx/mime.types;  #设置http协议的Content-Type与扩展名对应关系
    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  /var/log/nginx/access.log  main;  # 设置日志类型与log_format 对应

    sendfile        on;  #零拷贝 nginx的一大优势,拷贝文件是不需要经过用户空间，直接在内核空间上拷贝
    #tcp_nopush     on; 

    keepalive_timeout  65;  #连接超时 65s

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;  #导入conf.d目录下的配置文件
}

小菜建议配服务的时候在/etc/nginx/conf.d/目录下新建一个文件后缀为.conf的文件

2.conf.d文件

在命令窗口输入

cd /etc/nginx/conf.d

进入到conf.d目录下面有个默认default.conf文件

server {
    listen       80;   #监听的端口号80 也可以这样写 192.168.1.140:80
    server_name  localhost;  #主机域名

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {    #访问的路径
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }   

    #error_page  404              /404.html;   #定义404的错误

    # redirect server error pages to the static page /50x.html
    #   
    error_page   500 502 503 504  /50x.html;  #定义 500 502 503 504错误
    location = /50x.html {
        root   /usr/share/nginx/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;
    #}
}