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sources/tech/20170323 How to Install iRedMail on CentOS 7 for Samba4 AD Integration – Part 10.md
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translating---geekpi
How to Install iRedMail on CentOS 7 for Samba4 AD Integration – Part 10
============================================================
This series of tutorials will guide you on how to integrate iRedMail installed on a CentOS 7 machine with a [Samba4 Active Directory Domain Controller][3] in order for domain accounts to send or receive mail via Thunderbird desktop client or via Roundcube web interface.
The CentOS 7 server where iRedMail will be installed will allow SMTP or mail routing services via ports 25 and 587 and will also serve as a mail delivery agent through Dovecot, providing POP3 and IMAP services, both secured with self-signed certificates issued on the installation process.
The recipient mailboxes will be stored on the same CentOS server along with the webmail user agent provided by Roundcube. Samba4 Active Directory will be used by iRedMail to query and authenticate recipient accounts against the realm, to create mail lists with the help of Active Directory groups and to control the mail accounts via Samba4 AD DC.
#### Requirements:
1. [Create an Active Directory Infrastructure with Samba4 on Ubuntu][1]
### Step 1: Install iRedMail in CentOS 7
1. Before starting with iRedMail installation first make sure you have a fresh CentOS 7 operating system installed on your machine using the instructions provided by this guide:
1. [Fresh Installation of CentOS 7 Minimal][2]
2. Also, assure that the system is up-to-date with the latest security and packages updates by issuing the below command.
```
# yum update
```
3. The system will also need a FQDN hostname set by issuing the below command. Replace `mail.tecmint.lan` variable with your own custom FQDN.
```
# hostnamectl set-hostname mail.tecmint.lan
```
Verify system hostname with the below commands.
```
# hostname -s # Short name
# hostname -f # FQDN
# hostname -d # Domain
# cat /etc/hostname # Verify it with cat command
```
[
![Verify CentOS 7 Hostname](http://www.tecmint.com/wp-content/uploads/2017/03/Verify-CentOS-7-Hostname.png)
][4]
Verify CentOS 7 Hostname
4. Map the machine FQDN and short name against the machine loopback IP address by manually editing `/etc/hosts` file. Add the values as illustrated below and replace `mail.tecmint.lan` and mail values accordingly.
```
127.0.0.1 mail.tecmint.lan mail localhost localhost.localdomain
```
5. iRedMail technicians recommends that SELinux should be completely disabled. Disable SELinux by editing /etc/selinux/config file and set SELINUX parameter from `permissive` to `disabled` as illustrated below.
```
SELINUX=disabled
```
Reboot the machine to apply new SELinux policies or run setenforce with 0 parameter to force SELinux to instantly disable.
```
# reboot
OR
# setenforce 0
```
6. Next, install the following packages that will come in-handy later for system administration:
```
# yum install bzip2 net-tools bash-completion wget
```
7. In order to install iRedMail, first go to the download page [http://www.iredmail.org/download.html][5] and grab the latest archive version of the software by issuing the below command.
```
# wget https://bitbucket.org/zhb/iredmail/downloads/iRedMail-0.9.6.tar.bz2
```
8. After the download finishes, extract the compressed archive and enter the extracted iRedMail directory by issuing the following commands.
```
# tar xjf iRedMail-0.9.6.tar.bz2
# cd iRedMail-0.9.6/
# ls
```
9. Start the installation process by executing iRedMail shell script with the following command. From now on a series of questions will be asked by the installer.
```
# bash iRedMail.sh
```
10. On the first welcome prompt hit on `Yes` to proceed further with the installation.
[
![iRedMail Setup Wizard](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Setup-Wizard.png)
][6]
iRedMail Setup Wizard
11. Next, choose the location where all the mail will be stored. The default directory that iRedMail uses to store mailboxes is `/var/vmail/` system path.
If this directory is located under a partition with enough storage to host mail for all your domain accounts then hit on Next to continue.
Otherwise change the default location with a different directory in case if you’ve configured a larger partition dedicated to mail storage.
[
![iRedMail Mail Storage Path](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Storage-Path.png)
][7]
iRedMail Mail Storage Path
12. On the next step choose the frontend web server through which you will interact with iRedMail. iRedMail administration panel will be completely disabled later, so we will use the frontend web server only to access accounts mail via Roundcube web panel.
If you don’t have thousands of mail accounts per hour accessing the webmail interface you should go with Apache web server do to its flexibility and easy management.
[
![iRedMail Preferred Web Server](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Preferred-Web-Server.png)
][8]
iRedMail Preferred Web Server
13. On this step choose OpenLDAP backend database for compatibility reasons with Samba4 domain controller and hit Next to continue, although we won’t use this OpenLDAP database later once we’ll integrate iRedMail to Samba domain controller.
[
![iRedMail LDAP Backend](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-LDAP-Backend.png)
][9]
iRedMail LDAP Backend
14. Next, specify your Samba4 domain name for LDAP suffix as illustrated on the image below and hit Next to continue.
[
![iRedMail LDAP Suffix](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-LDAP-Suffix.png)
][10]
iRedMail LDAP Suffix
15. On the next prompt enter your domain name only and hit Next to move on. Replace `tecmint.lan` value accordingly.
[
![iRedMail Mail Domain](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Domain.png)
][11]
iRedMail Mail Domain
16. Now, setup a password for `postmaster@yourdomain.tld` administrator and hit Next to continue.
[
![iRedMail Mail Domain Administrator](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Domain-Administrator.png)
][12]
iRedMail Mail Domain Administrator
17. Next, choose from the list the optional components you want to integrate with your mail server. I strongly recommend to install Roundcube in order to provide a web interface for domain accounts to access mail, although Roundcube can be installed and configured on a different machine for this task in order to free mail server resources in case of high loads.
For local domains with restricted internet access and especially while we’re using domain integration the other components are not very useful, except Awstats in case you need mail analysis.
[
![iRedMail Optional Components](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Optional-Components.png)
][13]
iRedMail Optional Components
18. On the next review screen type `Y` in order to apply configuration and start the installation process.
[
![iRedMail Configuration Changes](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Configuration-Changes.png)
][14]
iRedMail Configuration Changes
19. Finally, accept iRedMail scripts to automatically configure your machine firewall and MySQL configuration file by typing yes for all questions.
[
![iRedMail System Configuration](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-System-Configuration.png)
][15]
iRedMail System Configuration
20. After the installation finishes the installer will provide some sensitive information, such as iRedAdmin credentials, web panel URL addresses and the file location with all parameters used at the installation process.
[
![iRedMail Installation Summary](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Installation-Summary.png)
][16]
iRedMail Installation Summary
Read the displayed information above carefully and reboot the machine in order to enable all mail services by issuing the following command.
```
# init 6
```
21. After the system reboots, login with an account with root privileges or as root and list all network sockets and their associated programs your mail server listens on by issuing the following command.
From the socket list you will see that your mail server covers almost all services required by a mail server to properly function: SMTP/S, POP3/S, IMAP/S and antivirus along with spam protection.
```
# netstat -tulpn
```
[
![iRedMail Network Sockets](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Network-Sockets.png)
][17]
iRedMail Network Sockets
22. In order to view the location of all configuration files iRedMail has modified and the credentials used by iRedMail during the installation process for database administration, mail admin account and other accounts, display the contents of iRedMail.tips file.
The file is located in the directory where you’ve initially extracted the installation archive. Be aware that you should move and protect this file because it contains sensitive information about your mail server.
```
# less iRedMail-0.9.6/iRedMail.tips
```
23. The file mentioned above which contain details about your mail server will also be automatically mailed to the mail server administrator account, represented by the postmaster account.
The webmail can be accessed securely via HTTPS protocol by typing your machine IP address in a browser. Accept the error generated in browser by the iRedMail self-signed web certificate and log in with the password chosen for postmaster@your_domain.tld account during the initial installation. Read and store this e-mail to a safe mailbox.
```
https://192.168.1.254
```
[
![iRedMail Account Login](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Account-Login.png)
][18]
iRedMail Account Login
[
![iRedMail Web Mail](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Web-Mail.png)
][19]
iRedMail Web Mail
That’s all! By now, you’ll have a full mail server configured on your premises which operates on its own, but not yet integrated with Samba4 Active Directory Domain Controller services.
On the next part we will see how to tamper iRedMail services (postfix, dovecot and roundcube configuration files) in order to query domain accounts, send, receive and read mail.
--------------------------------------------------------------------------------
作者简介：
I'am a computer addicted guy, a fan of open source and linux based system software, have about 4 years experience with Linux distributions desktop, servers and bash scripting.
--------------------------------------------------------------------------------
via: http://www.tecmint.com/install-iredmail-on-centos-7-for-samba4-ad-integration/
作者：[Matei Cezar][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:http://www.tecmint.com/author/cezarmatei/
[1]:http://www.tecmint.com/install-samba4-active-directory-ubuntu/
[2]:http://www.tecmint.com/centos-7-3-installation-guide/
[3]:http://www.tecmint.com/install-samba4-active-directory-ubuntu/
[4]:http://www.tecmint.com/wp-content/uploads/2017/03/Verify-CentOS-7-Hostname.png
[5]:http://www.iredmail.org/download.html
[6]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Setup-Wizard.png
[7]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Storage-Path.png
[8]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Preferred-Web-Server.png
[9]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-LDAP-Backend.png
[10]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-LDAP-Suffix.png
[11]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Domain.png
[12]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Domain-Administrator.png
[13]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Optional-Components.png
[14]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Configuration-Changes.png
[15]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-System-Configuration.png
[16]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Installation-Summary.png
[17]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Network-Sockets.png
[18]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Account-Login.png
[19]:http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Web-Mail.png
[20]:http://www.tecmint.com/author/cezarmatei/
[21]:http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
[22]:http://www.tecmint.com/free-linux-shell-scripting-books/

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如何在 CentOS 7 上安装 iRedMail 用于 Samba4 AD 集成 - 第 10 部分
============================================================
本系列教程将引导你了解如何在 CentOS 7 安装 iRedMail 以及[ Samba4 AD 域控制器][3]，以便域帐户可以通过 Thunderbird 桌面客户端或通过 Roundcube Web 界面发送或接收邮件。
将安装 iRedMail 的 CentOS 7 服务器需允许通过 25 和 587 端口进行 SMTP 或邮件路由服务，并且还将通过 Dovecot 作为邮件传递代理，提供 POP3 和 IMAP 服务，两者都使用安装中签发的自签名证书进行安全保护。
收件人邮箱将与 Roundcube 提供的 webmail 用户代理一起存储在同一台 CentOS 服务器上。iRedMail 将使用 Samba4 AD 来查询和验证收件人帐户，在 AD 组的帮助下创建邮件列表，并通过 Samba4 AD DC 控制邮件帐户。
#### 需要：
1. [在 Ubuntu 上使用 Samba4 创建 AD 基础架构][1]
### 步骤 1：在 CentOS 7 上安装 iRedMail
1. 在安装 iRedMail 之前，请先确保你使用下面的指南在你的机器上安装了一个全新的 CentOS 7 操作系统：
1. [全新安装 CentOS 7 Minimal][2]
2. 同样使用下面的命令确保系统更新了最新的安全补丁和软件包。
```
# yum update
```
3. 系统同样需要一个 FQDN 主机名，使用下面的命令设置。使用你自定义的 FQDN 代替 `mail.tecmint.lan` 变量。
```
# hostnamectl set-hostname mail.tecmint.lan
```
使用下面的命令验证系统主机名。
```
# hostname -s # Short name
# hostname -f # FQDN
# hostname -d # Domain
# cat /etc/hostname # Verify it with cat command
```
[
![Verify CentOS 7 Hostname](http://www.tecmint.com/wp-content/uploads/2017/03/Verify-CentOS-7-Hostname.png)
][4]
验证 CentOS 7 主机名
4. 通过手动编辑 `/etc/hosts`，将机器的 FQDN 和短名称映射到机器回环 IP 地址。添加如下所示的值，并相应替换 `mail.tecmint.lan` 和 mail 的值。
```
127.0.0.1 mail.tecmint.lan mail localhost localhost.localdomain
```
5. iRedMail 专家建议应该完全禁用 SELinux。通过编辑 /etc/selinux/config 并将 SELINUX 参数的值从 `permissive` 设置成 `disabled` 来禁用 SELinux。
```
SELINUX=disabled
```
重启机器并应用新的 SELinux 策略，或者运行 setenforce 带上参数 0 来强制 SELinux 立即禁用。
```
# reboot
或者
# setenforce 0
```
6. 接下来，安装下面这些接下来会用来系统管理的软件包：
```
# yum install bzip2 net-tools bash-completion wget
```
7. 要安装 iRedMail，首先打牌下载页 [http://www.iredmail.org/download.html][5] 中并用下面的命令下载最新的版本。
```
# wget https://bitbucket.org/zhb/iredmail/downloads/iRedMail-0.9.6.tar.bz2
```
8. 下载完成后，使用下面命令解压压缩包并进入解压后的 iRedMail 目录。
```
# tar xjf iRedMail-0.9.6.tar.bz2
# cd iRedMail-0.9.6/
# ls
```
9. 使用下面的命令执行 iRedMail 的 shell 脚本来开始安装。接下来安装器会询问一系列的问题。
```
# bash iRedMail.sh
```
10. 在首个欢迎提示中，点击 `Yes` 来继续安装。
[
![iRedMail Setup Wizard](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Setup-Wizard.png)
][6]
iRedMail 安装向导
11. 接下来，选择邮件存储的位置。iRedMail 默认邮箱的存储位置在 `/var/vmail/` 中。
如果这个目录所在的分区有足够的空间来保存你所有域帐户的邮件，接着点击 Next 来继续。
否则，如果你已经配置一个更大的分区来用于邮件存储，那么就用不同的目录来更改默认位置。
[
![iRedMail Mail Storage Path](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Storage-Path.png)
][7]
iRedMail 邮件存储路径
12. 在下一步中，选择要与 iRedMail 进行交互的前端 Web 服务器。今后将完全禁用 iRedMail 管理面板，因此我们将使用前端 Web 服务器仅通过 Roundcube Web 面板访问帐户邮件。
如果你每小时没有数以千计的邮件帐户访问 webmail 界面，那么你应该使用 Apache Web 服务器来实现其灵活性和易于管理。
[
![iRedMail Preferred Web Server](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Preferred-Web-Server.png)
][8]
iRedMail 偏好的 Web 服务器
13. 在此步骤中，由于 Samba4 域控制器的兼容性原因，请选择 OpenLDAP 后端数据库，并点击 Next 继续，但是一旦将 iRedMail 集成到 Samba 域控制器中，我们将不再使用该 OpenLDAP 数据库。
[
![iRedMail LDAP Backend](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-LDAP-Backend.png)
][9]
iRedMail LDAP 后端
14.接下来，如下图所示，为你的 Samba4 域名指定 LDAP 后缀，然后点击 Next 继续。
[
![iRedMail LDAP Suffix](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-LDAP-Suffix.png)
][10]
iRedMail LDAP 后缀
15. 在接下来的提示中，只要输入你的域名，并点击 Next 继续。相应地替换 `tecmint.lan` 值。
[
![iRedMail Mail Domain](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Domain.png)
][11]
iRedMail 邮件域
16. 现在，为 `postmaster@yourdomain.tld` 管理员设置一个密码，并点击 Next 继续。
[
![iRedMail Mail Domain Administrator](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Mail-Domain-Administrator.png)
][12]
iRedMail 邮件域管理员
17. 接下来，从列表中选择要与邮件服务器集成的可选组件。我强烈建议你安装 Roundcube，以便为域帐户提供访问邮件的 Web 界面，尽管你也可以在不同的计算机上安装并配置 Roundcube，以便在高负载情况下释放邮件服务器资源。
对于受限访问互联网的本地域，特别是在我们使用域集成时，除了 Awstats 以防你需要邮件分析，其他组件不是非常有用。
[
![iRedMail Optional Components](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Optional-Components.png)
][13]
iRedMail 可选组件
18. 在下一步中输入 `Y` 来应用配置并开始安装。
[
![iRedMail Configuration Changes](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Configuration-Changes.png)
][14]
iRedMail 配置更改
19. 最后，所有的问题都输入 yes，接受 iRedMail 脚本自动配置你的防火墙以及 MySQL 配置文件。
[
![iRedMail System Configuration](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-System-Configuration.png)
][15]
iRedMail 系统配置
20. 安装完成后，安装器会提供一些敏感信息。比如 iRedAdmin 凭证、web 面板的 URL 地址以及安装过程中使用的所有参数的文件位置。
[
![iRedMail Installation Summary](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Installation-Summary.png)
][16]
iRedMail 安装总结
仔细阅读上面的信息，使用下面的命令重启机器来使所有的邮件服务启用。
```
# init 6
```
21. 系统重启后，使用 root 权限的帐户登录或以 root 身份登录，并使用下面的命令列出所有的网络套接字以及你邮件服务器监听的相关程序。
在套接字列表中，你会看到邮件服务器几乎覆盖邮件服务器正常运行所需的所有服务：SMTP/S、POP3/S、IMAP/S 和防病毒以及垃圾邮件保护。
```
# netstat -tulpn
```
[
![iRedMail Network Sockets](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Network-Sockets.png)
][17]
iRedMail 网络套接字
22. 为了查看 iRedMail 已修改的所有配置文件的位置、iRedMail 安装过程中用于数据库管理的凭据、邮件管理帐户以及其他帐户，那么就显示 iRedMail.tips 这个文件。
该文件位于你最初解压安装包的目录中。请注意，你应该移动并保护此文件，因为它包含有关邮件服务器的敏感信息。
```
# less iRedMail-0.9.6/iRedMail.tips
```
23. 上面提到的包含邮件服务器详细信息的文件也将自动发送到 postmaster 这个邮件服务器管理员帐户中。
通过在浏览器中输入机器的 IP 地址，你可以通过 HTTPS 协议安全地访问 webmail。接受 iRedMail 自签名证书在浏览器中生成的错误，并使用在安装中为 postmaster@your_domain.tld 帐户设置的密码登录。阅读并将此电子邮件存储到一个安全的邮箱。
```
https://192.168.1.254
```
[
![iRedMail Account Login](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Account-Login.png)
][18]
iRedMail 登录帐户
[
![iRedMail Web Mail](http://www.tecmint.com/wp-content/uploads/2017/03/iRedMail-Web-Mail.png)
][19]
iRedMail Web 邮件
就是这样了！到目前为止，你已经配置了一台完整的自己运行的邮件服务器了，但尚未与 Samba4 AD 域控制器服务集成。
在下一部分中，我们将看到如何修改 iRedMail 服务（postfix，dovecot 和 roundcube 配置文件），以便查询域帐户、发送、接收和读取邮件。
--------------------------------------------------------------------------------
作者简介：
我是一个电脑上瘾的家伙，开源和基于 linux 系统软件的粉丝，在 Linux 发行版桌面、服务器和 bash 脚本方面拥有大约 4 年的经验。
--------------------------------------------------------------------------------
via: http://www.tecmint.com/install-iredmail-on-centos-7-for-samba4-ad-integration/
作者：[Matei Cezar][a]
译者：[geekpi](https://github.com/geekpi)
校对：[校对者ID](https://github.com/校对者ID)
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[a]:http://www.tecmint.com/author/cezarmatei/
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[2]:http://www.tecmint.com/centos-7-3-installation-guide/
[3]:http://www.tecmint.com/install-samba4-active-directory-ubuntu/
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