先设置一下CentOS，并安装必要的组件
1, 关闭selinux (如果有selinux)

vi /etc/sysconfig/selinux

修改/etc/sysconfig/selinux文件中的SELINUX="" 为 disabled
再reboot重启电脑

reboot

2, 删除必要的服务

yum remove httpd php mysql nginx sendmail

3, 更新系统

yum update -y

4,安装gcc, gcc-c++等必要的组件
http://help.directadmin.com/item.php?id=354

yum install wget gcc gcc-c++ flex bison make bind bind-libs bind-utils openssl openssl-devel perl quota libaio libcom_err-devel libcurl-devel gd zlib-devel zip unzip libcap-devel cronie bzip2 cyrus-sasl-devel perl-ExtUtils-Embed autoconf automake libtool which patch mailx bzip2-devel lsof db4-devel glibc.i686 openssl098e.i686 libstdc++.i686

开始安装DirectAdmin
安装DA时需要输入授权号、ID号。

wget http://www.directadmin.com/setup.sh

chmod 755 setup.sh

./setup.sh
  • Would you like to install these required pre-install packages? (y/n): y

是否检查和安装DA的必要组件，选择y

输入Client ID与License ID

Please enter your Client ID :
Please enter your License ID :

输入主机名，必须是二级域名，如:myvps.openos.org，这里一定要输入二级域名，如果输入myvps类似的会报错

Enter your hostname (FQDN) :myvps.openos.org

选择你的外网IP
Enter the device name:
一般独立主机是eth0, VPS可能是eth0:0, venet0:0, 一般情况下多网卡、多IP或VPS才会出现这个选项

You can make changes from the default settings in the next step.

1: custombuild 2.0: Apache 2.4, mod_ruid2, php 5.6. Can be set to use mod_php, php-FPM or fastcgi.
2: custombuild 2.0: Apache 2.4, mod_ruid2, php 5.5 (php 5.5 is end-of-life)
4: custombuild 2.0: Apache 2.4, php-fpm, php 5.6.


      Post any issues with custombuild to the forum: http://forum.directadmin.com/forumdisplay.php?f=61
Note: due to the current OS, some options are hidden because you must
use CustomBuild 2.0 Enter your choice (1, 2, 3 or 4): 1

选择安装属性包, 一般建议选择1, 如果是CentOS 7.x不会出现这个选择，自动默认为custombuild 2.0，并且MySQL自动换成MariaDB.

安装过程中遇到选择(y/n)，一路y
如果不出意外，　到最后你会看到

Admin username:   admin
Admin password:   OpDnXRppnXyW
Admin email:      [email protected]


Server IP: 47.74.xxx.xxx
Server Hostname: myvps.openos.org

To login now, follow this link:

http://47.74.xxx.xxx:2222

把这些信息记住就可以了.　登录后之后记得更改密码哦
若无法登录请检测防火墙设置

    iptables -L -n
    iptables -I INPUT -p tcp --dport 22 -j ACCEPT
    iptables -I INPUT -p tcp --dport 2222 -j ACCEPT
    iptables -I INPUT -p tcp --dport 80 -j ACCEPT
    iptables -I INPUT -p tcp --dport 443 -j ACCEPT
    iptables -I INPUT -p tcp --dport 21 -j ACCEPT
    service iptables save
    service iptables restart

以下是根据自己的需要设置

安装Nginx+Apache
http://forum.directadmin.com/showthread.php?t=44743

cd /usr/local/directadmin/custombuild
./build update
./build set webserver nginx_apache
./build nginx_apache
./build rewrite_confs

把默认的Apache改为Nginx
https://help.directadmin.com/item.php?id=556

cd /usr/local/directadmin/custombuild
./build set webserver nginx
./build set php1_mode php-fpm
./build set php2_mode php-fpm (如果安装了两个版本的php)
./build update
./build all d
./build rewrite_confs

DirectAdmin 设置多版本PHP(如php 5.6 + php 7.1)的方法:
参考:https://www.vultr.com/docs/using-multiple-php-versions-on-directadmin

cd /usr/local/directadmin/custombuild
./build set php2_release 7.1
./build update
./build php n
./build rewrite_confs

DirectAdmin 升级降级/切换PHP版本的方法:
以下是php降级到5.5的方法, 其他版本也可以参考这个设置
CustomBuild 2.0
If you’re looking to change php versions in CustomBuild 2.0, say from php 5.6 to php 5.5, you’d type:

cd /usr/local/directadmin/custombuild
./build set php1_release 5.3
./build update
./build php n
./build rewrite_confs

安全设置
修改DirectAdmin默认访问端口，编辑directadmin.conf里面默认端口2222，注意不要与常用端口冲突。

/usr/local/directadmin/conf/directadmin.conf

重启DirectAdmin

service directadmin restart

参考这里
http://www.directadmin.com/install.html
http://help.directadmin.com/item.php?id=354
http://www.directadmin.com/installguide.html

中文包
https://github.com/hostsoft/diretcadmin-chinese-lang/archive/master.zip
https://github.com/zchjoe/Directadmin_Chinese_Language/archive/master.zip

语言包位置
/usr/local/directadmin/data/skins/enhanced/lang

编辑user.conf文件

vi /usr/local/directadmin/data/users/admin/user.conf

找到language=en 修改为language=cn

新款Evolution皮肤中文包
https://github.com/cqfanli/DirectAdmin-EvolutionSkin-Chinese