版本：Apache Version Apache/2.4.6 (Ubuntu)
系统： ubuntn12.04
在/etc/apache2/sites-enabled/
sudo cp 000-defaut.conf sv1.conf
sudo vim sv1.conf
<VirtualHost *:80>
ServerName www.sv1.com
ServerAdmin webmaster@localhost
DocumentRoot /home/www/sv1
DirectoryIndex index.html
</VirtualHost>
<Directory "/home/www/sv1">
Options FollowSymLinks
AllowOverride All
Require all granted
</Directory>
sudo service apache2 restart
出现403错误，参考下面解决。
使用apache来配置虚拟主机，在单一系统上运行多个网站。
现在很多linux主机使用apache作为web服务器的，大部分是基于这个原理来配置虚拟主机的。
下面就windows下以apache 2.4.3作为演示的一个教程。
这里只是简单的说明下，简述实现的原理
1.Apache的配置文件httpd.conf，找到Virtual hosts，进行如下修改保存。
# Virtual hosts#Include conf/extra/httpd-vhosts.conf去掉第2行的‘#’号，改为# Virtual hostsInclude conf/extra/httpd-vhosts.conf
这样就开启了extra文件夹下的httpd-vhosts.conf，以后修改虚拟主机只要在这个文件进行。
2.对httpd-vhosts.conf进行配置。
例如域名www.a.com和www.b.com
# Virtual Hosts## Required modules: mod_log_config# If you want to maintain multiple domains/hostnames on your# machine you can setup VirtualHost containers for them. Most configurations# use only name-based virtual hosts so the server doesn't need to worry about# IP addresses. This is indicated by the asterisks in the directives below.## Please see the documentation at # <URL:http://httpd.apache.org/docs/2.4/vhosts/># for further details before you try to setup virtual hosts.## You may use the command line option '-S' to verify your virtual host# configuration.## VirtualHost example:# Almost any Apache directive may go into a VirtualHost container.# The first VirtualHost section is used for all requests that do not# match a ServerName or ServerAlias in any <VirtualHost> block.#<VirtualHost*:80>ServerAdmin webmaster@a.com DocumentRoot"d:/www/a"ServerName a.com ServerAlias www.a.com ErrorLog"logs/a.com.log"CustomLog"logs/a.com.log" common <Directory"d:/www/a">Require all granted </Directory> </VirtualHost><VirtualHost*:80>ServerAdmin webmaster@b.com DocumentRoot"d:/www/b"ServerName b.com ServerAlias www.b.com ErrorLog"logs/b.com.log"CustomLog"logs/b.com.log" common <Directory"d:/www/b">Require all granted </Directory> </VirtualHost>
注意：apache 2.4以上版本中需要在目录下面添加 Require all granted,否则无论怎么访问都是403。