我想在服务器的80端口进行配置（当然你也可添加其他的端口）
1：安装apache，这部分我在前面写过，就不重复了
2：我把apache安装在/usr/local/目录下，即apache的安装目录为/usr/local/apache
3:
cd /usr/local/apache/conf
vi httpd.conf
在httpd.conf的文件末尾加上
Include /usr/local/apache/conf/vhost.conf
同时在 /usr/local/apache/conf目录下，vi vhost.conf
内容如下：
NameVirtualHost 192.168.1.231:80
ServerName www.a.com
ServerName www.b.com
DocumentRoot "/usr/local/apache/www1"
Alias /cs "/usr/local/apache/htdocs/phpmyadmin/"
allow from all
DirectoryIndex index.php
ServerName www.c.com
DocumentRoot "/usr/local/apache/htdocs"
allow from all
DirectoryIndex index.html index.php
#Alias /cs "/usr/local/apache/htdocs/phpmyadmin/"这个表示建立虚拟目录为cs，指向地点为phpmyadmin目录 完整配置实例一：
Options FollowSymLinks
AllowOverride None
Order deny,allow
allow from all
DirectoryIndex index.php index.html
ServerAdmin [email protected] DocumentRoot /www/www.a.com/www/htdocs
ServerName www.a.com
ErrorLog /www/www.a.com/logs/error_log
CustomLog "|/usr/local/cronolog/sbin/cronolog /www/www.a.com/logs/access_log.%Y%m%d" combined
#CustomLog "|/usr/local/cronolog/sbin/cronolog /www/www.a.com/logs/access_log.%Y%m%d" combined #这句是表示按日期写日志到目录文件里面 cronolog下载地址： [url]http://cronolog.org/download/cronolog-1.6.2.tar.gz[/url] 配置详细实例二：
Options FollowSymLinks
AllowOverride None
Options None
Order allow,deny
Allow from all
DirectoryIndex index.php index.html
ServerAdmin [email protected]
DocumentRoot /www/www.test.com/www/htdocs
ServerName www.test.com
ErrorDocument 404 /index.php
ErrorLog /www/www.test.com/logs/error_log
CustomLog "|/usr/local/cronolog/sbin/cronolog /www/www.test.com/logs/access_log.%Y%m%d" combined
多虚拟主机配置80端口在同一文件中的配置前要加 NameVirtualHost *:80 多虚拟主机配置80端口在多配置文件中在httpd.conf最后加 NameVirtualHost *:80
Include /usr/local/apache/conf/Includes/*.conf 再建立Includes文件夹 # mkdir /usr/local/apache/conf/Includes 新建你的*.conf文件，比如www.test.com.conf