#vim /usr/local/apache2/conf/extra/http-vhosts.conf //修改对应虚拟主机配置文件
加入文件：
DocumentRoot "/data/www"
ServerName www.test.com
ServerAlias www.aaa.com
ErrorLog "|/usr/local/apache2/bin/rotatelogs -l /usr/local/apache2/logs/error_%Y%m%d.log 86400"
CustomLog "|/usr/local/apache2/bin/rotatelogs -l /usr/local/apache2/logs/custom_%Y%m%d.log 86400" combined
//ErrorLog错误日志，CustomLog访问日志。管道符|把日志交给rotatelogs这个Apache自带切割工具处理，-l用来校准时区为UTC北京时间，86400秒为一天切割一次。Combined为日志格式，日志格式在/usr/local/apache2/conf/http.conf里面定义。
RewriteEngine on
RewriteCond %{HTTP_HOST} ^www.aaa.com$
RewriteRule ^/(.*)$ http://www.test.com/$1 [R=301,L]