为了实现在本地局域网使用虚拟域名访问服务器（因为一般情况下都用IP地址访问）。
1. 创建目录
Apache默认的文件路径是 /var/www/html/，现在在 /var/www/ 目录下新建一个 zhangyi.geek.com 目录，目录下面写一个 index.html 文件。
2. 修改apache配置文件
进入配置文件目录：/etc/apache2/sites-available ，将000-default.conf 配置文件拷贝一份。
cp000-default.confzhangyi.geek.com.conf
修改新建的配置文件：sudo vizhangyi.geek.com.conf
<VirtualHost *:80>
# The ServerName directive sets the request scheme,hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts,the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However,you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerName zhangyi.geek.com ServerAdmin webmaster@zhangyi.geek.com DocumentRoot /var/www/zhangyi.geek.com ServerAlias www.zhangyi.geek.com
# Available loglevels: trace8,...,trace1,debug,info,notice,warn,# error,crit,alert,emerg.
# It is also possible to configure the loglevel for particular
# modules,e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
# For most configuration files from conf-available/,which are
# enabled or disabled at a global level,it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
</VirtualHost>
# vim: Syntax=apache ts=4 sw=4 sts=4 sr noet
3. 链接配置文件
sudo ln zhangyi.geek.com.conf ../sites-enabled/zhangyi.geek.com.conf
4. 重启apache
sudo service apache2 restart
5. 远程访问
配置好以后，打开本地浏览器，输入zhangyi.geek.com 就可以访问了。
打开文件：sudo vi /etc/host
添加一行：192.168.1.30 zhangyi.geek.com 即可！
6. 问题解决
6.1
问题：重启apache 出现127.0.1.1 警告。。。
解决：sudo vi /etc/apache2/apache2.conf 添加一行ServerName localhost ，在重启就不会报警告了。
6.2
问题：访问不到 或者 内容为空
sudo chown -R $USER:$USER /var/www/zhangyi.geek.com
sudo chmod -R 755 /var/www/
