40 Server_name通配符匹配配置

40 Server_name通配符匹配配置

40.1 通配符匹配

server_name中支持通配符"*"，但需要注意的是通配符不能出现在域名的中间，只能出现在首段或尾段，如：

    server {
        listen 80;
        server_name *.itcast.cn www.itheima.*;
          ........
        }

注意：下面的配置会报错

    server {
        listen 80;
        server_name www.*.cn www.itheima.c*;
          ........
        }

40.2 演示1

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
..........
    server {
        listen       80;
        #server_name  www.nginx521.cn www.itcast.cn www.itheima.cn;
     server_name *.itcast.cn www.itheima.*;
        location / {
            root   html;
            index  index.html index.htm;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }

    server {
        listen 8080 default_server;
        server_name _;
        default_type text/plain;
        return 444 'not found server!!!';
        }
}

[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

Windows：C:\Windows\System32\drivers\etc\HOSTS

CentOS：/etc/hosts

# 添加解析
10.0.0.100 www.nginx521.cn
10.0.0.100 www.itcast.cn
10.0.0.100 www.itheima.cn
10.0.0.100 abc.itcast.cn
10.0.0.100 www.itheima.com

浏览器访问：http://www.itcast.cn/

浏览器访问：http://abc.itcast.cn/

浏览器访问：http://www.itheima.cn/

浏览器访问：http://www.itheima.com/

40.3 演示2

第一种方式

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
..........
    server {
        listen       80;
        server_name *w.itcast.cn;
        location / {
            root   html;
            index  index.html index.htm;
        }
..........
[root@nginx-100 /usr/local/nginx/conf]# nginx -t
nginx: [emerg] server name "*w.itcast.cn" is invalid in /usr/local/nginx/conf/nginx.conf:30
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed

第二种方式

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
..........
    server {
        listen       80;
        server_name www.*.cn;
        location / {
            root   html;
            index  index.html index.htm;
        }
..........
[root@nginx-100 /usr/local/nginx/conf]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

第三种方式

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
..........
    server {
        listen       80;
        server_name www.itcast.c*;
        location / {
            root   html;
            index  index.html index.htm;
        }
..........
[root@nginx-100 /usr/local/nginx/conf]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

以上三种方式，都是错误配置，第一种配置会报错，第二三种，匹配失效，注意，千万别误配

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