基于不同情况下配置Apache虚拟主机的方法，一共八种情况。首先查看你虚拟主机属于哪一种情况，然后对号入座就好了。过程不复杂，关键在于对症下药。

1、基于ip地址的虚拟主机

Listen 80
<VirtualHost 172.20.30.40>
DocumentRoot /home/httpd/html1
ServerName www.ok1.com
ErrorLog /usr/local/apache/logs/error1_log
CustomLog /usr/local/apache/logs/access1_log combined
</VirtualHost>
<VirtualHost 172.20.30.50>
DocumentRoot /home/httpd/html2
ServerName www.ok2.com
ErrorLog /usr/local/apache/logs/error2_log
CustomLog /usr/local/apache/logs/access2_log combined
</VirtualHost>

2、基于IP 和多端口的虚拟主机配置

Listen 172.20.30.40:80
Listen 172.20.30.40:8080
Listen 172.20.30.50:80
Listen 172.20.30.50:8080
<VirtualHost 172.20.30.40:80>
DocumentRoot /www/example1-80
ServerName www.example1.com
</VirtualHost>
<VirtualHost 172.20.30.40:8080>
DocumentRoot /www/example1-8080
ServerName www.example1.com
</VirtualHost>
<VirtualHost 172.20.30.50:80>
DocumentRoot /www/example2-80
ServerName www.example1.org
</VirtualHost>
<VirtualHost 172.20.30.50:8080>
DocumentRoot /www/example2-8080
ServerName www.example2.org
</VirtualHost>

3、单个IP 地址的服务器上基于域名的虚拟主机配置

# Ensure that Apache listens on port 80
Listen 80
# Listen for virtual host requests on all IP addresses
NameVirtualHost *:80
<VirtualHost *:80>
DocumentRoot /www/example1
ServerName www.example1.com
ServerAlias example1.com. *.example1.com
# Other directives here
</VirtualHost>
<VirtualHost *:80>
DocumentRoot /www/example2
ServerName www.example2.org
# Other directives here
</VirtualHost>

4、在多个IP 地址的服务器上配置基于域名的虚拟主机

Listen 80
# This is the “main” server running on 172.20.30.40
ServerName server.domain.com
DocumentRoot /www/mainserver
# This is the other address
NameVirtualHost 172.20.30.50
<VirtualHost 172.20.30.50>
DocumentRoot /www/example1
ServerName www.example1.com
# Other directives here …
</VirtualHost>
<VirtualHost 172.20.30.50>
DocumentRoot /www/example2
ServerName www.example2.org
# Other directives here …
</VirtualHost>

5、在不同的端口上运行不同的站点(基于多端口的服务器上配置基于域名的虚拟主机)

Listen 80
Listen 8080
NameVirtualHost 172.20.30.40:80
NameVirtualHost 172.20.30.40:8080
<VirtualHost 172.20.30.40:80>
ServerName www.example1.com
DocumentRoot /www/domain-80
</VirtualHost>
<VirtualHost 172.20.30.40:8080>
ServerName www.example1.com
DocumentRoot /www/domain-8080
<