jQuery火箭图标返回顶部代码

apache实现动态子域名，abc.zblog.com，则访问/data/www/default/zblog/abc

1.查找httpd.conf所在的位置

root@instance-baidu:/usr/local/apache/conf# sudo find / -name httpd.conf
/usr/local/apache/conf/httpd.conf

2.修改httpd.conf

vi /usr/local/apache/conf/httpd.conf
#取消注释这行
LoadModule rewrite_module modules/mod_rewrite.so

3.修改虚拟主机的配置(如何配置虚拟主机）

sudo vi /usr/local/apache/conf/vhost/default.conf

<VirtualHost *:80>
DocumentRoot /data/www/default/zblog
    ServerName zblog.com
    Rewriteengine On
    RewriteCond %{HTTP_HOST} !^www.zblog.com$     //这行是避免www也被重写
    RewriteCond %{HTTP_HOST} ^[^.]+.zblog.com$
    RewriteRule ^(.+) %{HTTP_HOST}$1 [C]
    RewriteRule ^([^.]+).zblog.com(.*) /$1$2

    SetOutputFilter DEFLATE
    Options FollowSymLinks
    DirectoryIndex index.php index.html index.htm
</VirtualHost>

重启一下服务　service httpd restart

4.修改hosts文件做测试：

IP改为你自己的服务器IP

sudo vi /etc/hosts
127.111.39.58 abc.zblog.com
127.111.39.58 zblog.com

  abc文件夹的内容是：

root@instance-baidu:/data/www/default/zblog/abc# pwd
/data/www/default/zblog/abc
root@instance-baidu:/data/www/default/zblog/abc# cat index.html 
i am abc page.

特殊域名可以设置代理或其它重写规则：访问baidu.zblog.com代理到http://www.baidu.com

<VirtualHost *:80>
DocumentRoot /data/www/default/zblog
ServerName zblog.com
Rewriteengine On
RewriteCond %{HTTP_HOST} !^baidu.zblog.com$
RewriteCond %{HTTP_HOST} !^www.zblog.com$
RewriteCond %{HTTP_HOST} ^([^.]+).zblog.com$
RewriteRule ^(.+) %{HTTP_HOST}$1 [C]
RewriteRule ^([^.]+).zblog.com(.*) /$1$2

RewriteCond %{HTTP_HOST} ^baidu.zblog.com$
RewriteRule ^/(.*) http://www.baidu.com [P]
LogLevel warn rewrite:trace3

SetOutputFilter DEFLATE
Options FollowSymLinks
DirectoryIndex index.php index.html index.htm
</VirtualHost>

查看apache日志：

 tail -f /usr/local/apache/logs/error_log

  参考：

https://blog.csdn.net/mzllyl/article/details/84434976

详细的rewrite规则，参考：

https://www.cnblogs.com/my2018/p/10675976.html