查看“Nginx防盗链”的源代码

location ~* \.(gif|jpg|png|swf|flv)$ {
root html
valid_referers none blocked *.nginx.com;
if ($invalid_referer) {
rewrite ^/ www.nginx.com
#return 404;
}
}
前面的root可以不要如果你在server{}中有设置可以不需要设定

[root@host ~]# vim /usr/local/nginx/conf/vhost/test.com.conf
……
location ~* ^.+\.(gif|jpg|png|swf|flv|rar|zip|doc|pdf|gz|bz2|jpeg|bmp|xls)$
{
    expires 7d;
    valid_referers none blocked server_names  *.test.com ;
    #定义referer白名单
    if ($invalid_referer) {
        return 403;
    #if函数的意思是：如果不是白名单内的域名，返回值：403
    }
    access_log off;
}
……
[root@host ~]# /usr/local/nginx/sbin/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
[root@host ~]# /usr/local/nginx/sbin/nginx -s reload
检查
[root@host ~]# curl -e "http://www.baidu.com/1.txt" -x127.0.0.1:80 -I test.com/baidu.png
HTTP/1.1 403 Forbidden
Server: nginx/1.12.1
Date: Mon, 11 Sep 2017 11:25:47 GMT
Content-Type: text/html
Content-Length: 169
Connection: keep-alive
访问被拒绝，防盗链生效