防盗链图片

#SECURITY-START 防盗链配置
location ~ .*\.(jpg|jpeg|gif|png)$
{
    expires      30d;
    access_log /dev/null;
    valid_referers *.xxxx.com xxxx.com;
    if ($invalid_referer){
    #rewrite ^/ http://ww4.sinaimg.cn/bmiddle/051bbed1gw1egjc4xl7srj20cm08aaa6.jpg;
    return 404;
    }
}
#SECURITY-END

以上替换网站-配置文件

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        expires      30d;
        error_log off;
        access_log /dev/null;
    }