安装nginx yum

直接使用yum安装，但是需要yum的epel库。
如果是通过其他途径安装的nginx，那么配置文件的位置和默认配置是不一样
但配置方法和指令都是都是一模一样。

 yum -y install epel-release nginx
 ```''

 使用下面指令可以查看ngingx安装的软件在哪里 (-ql) 。
 如果要检索nginx的包名，使用(-qa)

[root@master ~]# rpm -qa |grep nginx

[root@master ~]# rpm -qa |grep nginx
nginx-filesystem-1.20.1-10.el7.noarch
nginx-mod-stream-1.20.1-10.el7.x86_64
nginx-1.20.1-10.el7.x86_64

[root@master ~]# rpm -ql nginx-1.20.1-10.el7.x86_64

如果要查询nginx的配置文件,使用如下命令 -qc 

[root@master ~]# rpm -qc nginx-1.20.1-10.el7.x86_64
/etc/logrotate.d/nginx
/etc/nginx/fastcgi.conf
/etc/nginx/fastcgi.conf.default
/etc/nginx/fastcgi_params
/etc/nginx/fastcgi_params.default
/etc/nginx/koi-utf
/etc/nginx/koi-win
/etc/nginx/mime.types
/etc/nginx/mime.types.default
/etc/nginx/nginx.conf
/etc/nginx/nginx.conf.default
/etc/nginx/scgi_params
/etc/nginx/scgi_params.default
/etc/nginx/uwsgi_params
/etc/nginx/uwsgi_params.default
/etc/nginx/win-utf

>
/etc/nginx/nginx.conf.default(conf.templ,conf.sample,conf.example)


```nginx
# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes 24;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}
# 系统能够提供服务的连接数 理论上 是 worker_processes * worker_connections
# 但是受 * hard nofiles number,
#        * soft nofiles number
#的影响，可以通过 umlimit -n 使得无上限。或者修改/etc/securiy.limits.conf ，
# 执行 sysctl -p 


http {
    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_timeout   65;
    types_hash_max_size 4096;

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

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    # 网站唯一的表示 server_name+port 
    server {
        listen       80;
        listen       [::]:80;
        server_name  www.aa.com;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
        location = /404.html {
        }
      }
         server {
        listen       8081;
        listen       [::]:8081;
        server_name  www.aa.com;
        root         /usr/share/nginx/html/www.aa.com_8081;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
        location = /404.html {
        }
      }
         server {
        listen       80;
        listen       [::]:80;
        server_name  www.bb.com;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
        location = /404.html {
        }

}

启动nginx

[root@master ~]# systemctl start nginx
[root@master ~]# firewall-cmd –add-port=80/tcp –permanent
success
[root@master ~]# firewall-cmd –reload
success
[root@master ~]# curl localhost

以下也可以启动
ngins -s start
nginx -s stop
nginx -s quit
nginx -s reload (重启)

在server section
root: 网站的根地址
假如我的服务器的域名www.yc.com

root /var/www/html/www.yc.com
`
我访问
http://www.yc.com/1.txt
=> /var/www/html/www.yc.com/1.txt

http://www.yc.com/task
=>/var/www/html/www.yc.com/task
=> index.html 如果没有这个文件 403
=> 如果有就显示

http://www.yc.com/wordpress/index.php?a=5&b=6
=>/var/www/html/www.yc.com/wordpress/index.php

http://www.yc.com/wordpress/getgirlsimage.php?leg=long&breast=huge
=>/var/www/html/www.yc.com/wordpress/getgirlsimage.php

`
location / {
root /var/girsls;
}

location ~ (jpeg|mp4)$
{
if ($remote_ip ~= ‘^192’)
return 404;
}

虚拟主机

虚拟主机的配置文件应该写在 /etc/nginx/conf.d/域名.conf