ftp:http://www.dedecms.com/knowledge/servers/linux-bsd/2012/0819/8497.html
lamp:http://www.jb51.net/article/37987.htm

如果要配置多个站点则在/etc/httpd/conf/httpd.conf最后配置：

虚拟主机可以是基于 IP地址，即每个 IP 一个站点；

<VirtualHost www.lunax.info>
ServerAdmin webmaster@mail.lunax.info
DocumentRoot /groups/lunax/www
ServerName www.lunax.info
ErrorLog /groups/lunax/logs/error_log
TransferLog /groups/lunax/logs/access_log
</VirtualHost>

<VirtualHost www.lunax.org>
ServerAdmin webmaster@mail.lunax.org
DocumentRoot /groups/lunax/www
ServerName www.lunax.org
ErrorLog /groups/lunax/logs/error_log
TransferLog /groups/lunax/logs/access_log

也可以是基于名称， 即每个 IP 多个站点。这些站点运行在vps服务器而对于用户来说看起来是唯一的战点。

NameVirtualHost *:80

<VirtualHost *:80>
ServerName www.domain.tld
ServerAlias domain.tld *.domain.tld
DocumentRoot /www/domain
</VirtualHost>

<VirtualHost *:80>
ServerName www.otherdomain.tld
DocumentRoot /www/otherdomain
</VirtualHost>

mysql添加本地和远程都可登陆用户：

insert into mysql.user (host,user,password) values('%','jifei',PASSWORD('jifei'));
grant select on 数据库.* to '用户名'@'登录主机' identified by '密码';

flush privileges;
GRANT ALL PRIVILEGES ON *.* TO 'jifei'@'%' IDENTIFIED BY '' ;
flush privileges;

添加用户并赋予密码

$ useradd XXX
$ passwd XXX

赋予用户sudo权限

在/etc/sudoers文件末端加上 XX ALL=(ALL) ALL