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Integrate CentOS 7 to Samba4 AD from Commandline – Part 14
============================================================
This guide will show you how you can integrate a CentOS 7 Server with no Graphical User Interface to [Samba4 Active Directory Domain Controller][3] from command line using Authconfig software.
This type of setup provides a single centralized account database held by Samba and allows the AD users to authenticate to CentOS server across the network infrastructure.
#### Requirements
1. [Create an Active Directory Infrastructure with Samba4 on Ubuntu][1]
2. [CentOS 7.3 Installation Guide][2]
### Step 1: Configure CentOS for Samba4 AD DC
1. Before starting to join CentOS 7 Server into a Samba4 DC you need to assure that the network interface is properly configured to query domain via DNS service.
Run [ip address][4] command to list your machine network interfaces and choose the specific NIC to edit by issuing nmtui-edit command against the interface name, such as ens33 in this example, as illustrated below.
```
# ip address
# nmtui-edit ens33
```
[![List Network Interfaces](https://www.tecmint.com/wp-content/uploads/2017/07/List-Network-Interfaces.jpg)][5]
List Network Interfaces
2. Once the network interface is opened for editing, add the static IPv4 configurations best suited for your LAN and make sure you setup Samba AD Domain Controllers IP addresses for the DNS servers.
Also, append the name of your domain in search domains filed and navigate to OK button using [TAB] key to apply changes.
The search domains filed assures that the domain counterpart is automatically appended by DNS resolution (FQDN) when you use only a short name for a domain DNS record.
[![Configure Network Interface](https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Network-Interface.png)][6]
Configure Network Interface
3. Finally, restart the network daemon to apply changes and test if DNS resolution is properly configured by issuing series of ping commands against the domain name and domain controllers short names as shown below.
```
# systemctl restart network.service
# ping -c2 tecmint.lan
# ping -c2 adc1
# ping -c2 adc2
```
[![Verify DNS Resolution on Domain](https://www.tecmint.com/wp-content/uploads/2017/07/Verify-DNS-Resolution-on-Domain.png)][7]
Verify DNS Resolution on Domain
4. Also, configure your machine hostname and reboot the machine to properly apply the settings by issuing the following commands.
```
# hostnamectl set-hostname your_hostname
# init 6
```
Verify if hostname was correctly applied with the below commands.
```
# cat /etc/hostname
# hostname
```
5. Finally, sync local time with Samba4 AD DC by issuing the below commands with root privileges.
```
# yum install ntpdate
# ntpdate domain.tld
```
[![Sync Time with Samba4 AD DC](https://www.tecmint.com/wp-content/uploads/2017/07/Sync-Time-with-Samba4-AD-DC.png)][8]
Sync Time with Samba4 AD DC
### Step 2: Join CentOS 7 Server to Samba4 AD DC
6. To join CentOS 7 server to Samba4 Active Directory, first install the following packages on your machine from an account with root privileges.
```
# yum install authconfig samba-winbind samba-client samba-winbind-clients
```
7. In order to integrate CentOS 7 server to a domain controller run authconfig-tui graphical utility with root privileges and use the below configurations as described below.
```
# authconfig-tui
```
At the first prompt screen choose:
* On User Information:
* Use Winbind
* On Authentication tab select by pressing [Space] key:
* Use Shadow Password
* Use Winbind Authentication
* Local authorization is sufficient
[![Authentication Configuration](https://www.tecmint.com/wp-content/uploads/2017/07/Authentication-Configuration.png)][9]
Authentication Configuration
8. Hit Next to continue to the Winbind Settings screen and configure as illustrated below:
* Security Model: ads
* Domain = YOUR_DOMAIN (use upper case)
* Domain Controllers = domain machines FQDN (comma separated if more than one)
* ADS Realm = YOUR_DOMAIN.TLD
* Template Shell = /bin/bash
[![Winbind Settings](https://www.tecmint.com/wp-content/uploads/2017/07/Winbind-Settings.png)][10]
Winbind Settings
9. To perform domain joining navigate to Join Domain button using [tab] key and hit [Enter] key to join domain.
At the next screen prompt, add the credentials for a Samba4 AD account with elevated privileges to perform the machine account joining into AD and hit OK to apply settings and close the prompt.
Be aware that when you type the user password, the credentials won’t be shown in the password screen. On the remaining screen hit OK again to finish domain integration for CentOS 7 machine.
[![Join Domain to Samba4 AD DC](https://www.tecmint.com/wp-content/uploads/2017/07/Join-Domain-to-Samba4-AD-DC.png)][11]
Join Domain to Samba4 AD DC
[![Confirm Winbind Settings](https://www.tecmint.com/wp-content/uploads/2017/07/Confirm-Winbind-Settings.png)][12]
Confirm Winbind Settings
To force adding a machine into a specific Samba AD Organizational Unit, get your machine exact name using hostname command and create a new Computer object in that OU with the name of your machine.
The best way to add a new object into a Samba4 AD is by using ADUC tool from a Windows machine integrated into the domain with [RSAT tools installed][13] on it.
Important: An alternate method of joining a domain is by using authconfig command line which offers extensive control over the integration process.
However, this method is prone to errors do to its numerous parameters as illustrated on the below command excerpt. The command must be typed into a single long line.
```
# authconfig --enablewinbind --enablewinbindauth --smbsecurity ads --smbworkgroup=YOUR_DOMAIN --smbrealm YOUR_DOMAIN.TLD --smbservers=adc1.yourdomain.tld --krb5realm=YOUR_DOMAIN.TLD --enablewinbindoffline --enablewinbindkrb5 --winbindtemplateshell=/bin/bash--winbindjoin=domain_admin_user --update --enablelocauthorize --savebackup=/backups
```
10. After the machine has been joined to domain, verify if winbind service is up and running by issuing the below command.
```
# systemctl status winbind.service
```
11. Then, check if CentOS machine object has been successfully created in Samba4 AD. Use AD Users and Computers tool from a Windows machine with RSAT tools installed and navigate to your domain Computers container. A new AD computer account object with name of your CentOS 7 server should be listed in the right plane.
12. Finally, tweak the configuration by opening samba main configuration file (/etc/samba/smb.conf) with a text editor and append the below lines at the end of the [global]configuration block as illustrated below:
```
winbind use default domain = true
winbind offline logon = true
```
[![Configure Samba](https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Samba.jpg)][14]
Configure Samba
13. In order to create local homes on the machine for AD accounts at their first logon run the below command.
```
# authconfig --enablemkhomedir --update
```
14. Finally, restart Samba daemon to reflect changes and verify domain joining by performing a logon on the server with an AD account. The home directory for the AD account should be automatically created.
```
# systemctl restart winbind
# su - domain_account
```
[![Verify Domain Joining](https://www.tecmint.com/wp-content/uploads/2017/07/Verify-Domain-Joining.jpg)][15]
Verify Domain Joining
15. List the domain users or domain groups by issuing one of the following commands.
```
# wbinfo -u
# wbinfo -g
```
[![List Domain Users and Groups](https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Users-and-Groups.png)][16]
List Domain Users and Groups
16. To get info about a domain user run the below command.
```
# wbinfo -i domain_user
```
[![List Domain User Info](https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-User-Info.jpg)][17]
List Domain User Info
17. To display summary domain info issue the following command.
```
# net ads info
```
[![List Domain Summary](https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Summary.jpg)][18]
List Domain Summary
### Step 3: Login to CentOS with a Samba4 AD DC Account
18. To authenticate with a domain user in CentOS, use one of the following command line syntaxes.
```
# su - ‘domain\domain_user’
# su - domain\\domain_user
```
Or use the below syntax in case winbind use default domain = true parameter is set to samba configuration file.
```
# su - domain_user
# su - domain_user@domain.tld
```
19. In order to add root privileges for a domain user or group, edit sudoers file using visudocommand and add the following lines as illustrated on the below screenshot.
```
YOUR_DOMAIN\\domain_username ALL=(ALL:ALL) ALL #For domain users
%YOUR_DOMAIN\\your_domain\ group ALL=(ALL:ALL) ALL #For domain groups
```
Or use the below excerpt in case winbind use default domain = true parameter is set to samba configuration file.
```
domain_username ALL=(ALL:ALL) ALL #For domain users
%your_domain\ group ALL=(ALL:ALL) ALL #For domain groups
```
[![Grant Root Privileges on Domain Users](https://www.tecmint.com/wp-content/uploads/2017/07/Grant-Root-Privileges-on-Domain-Users.jpg)][19]
Grant Root Privileges on Domain Users
20. The following series of commands against a Samba4 AD DC can also be useful for troubleshooting purposes:
```
# wbinfo -p #Ping domain
# wbinfo -n domain_account #Get the SID of a domain account
# wbinfo -t #Check trust relationship
```
21. To leave the domain run the following command against your domain name using a domain account with elevated privileges. After the machine account has been removed from the AD, reboot the machine to revert changes before the integration process.
```
# net ads leave -w DOMAIN -U domain_admin
# init 6
```
That’s all! Although this procedure is mainly focused on joining a CentOS 7 server to a Samba4 AD DC, the same steps described here are also valid for integrating a CentOS server into a Microsoft Windows Server 2012 Active Directory.
--------------------------------------------------------------------------------
作者简介：
Matei Cezar
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: https://www.tecmint.com/integrate-centos-7-to-samba4-active-directory/
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]:https://www.tecmint.com/author/cezarmatei/
[1]:https://www.tecmint.com/install-samba4-active-directory-ubuntu/
[2]:https://www.tecmint.com/centos-7-3-installation-guide/
[3]:https://www.tecmint.com/install-samba4-active-directory-ubuntu/
[4]:https://www.tecmint.com/ip-command-examples/
[5]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Network-Interfaces.jpg
[6]:https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Network-Interface.png
[7]:https://www.tecmint.com/wp-content/uploads/2017/07/Verify-DNS-Resolution-on-Domain.png
[8]:https://www.tecmint.com/wp-content/uploads/2017/07/Sync-Time-with-Samba4-AD-DC.png
[9]:https://www.tecmint.com/wp-content/uploads/2017/07/Authentication-Configuration.png
[10]:https://www.tecmint.com/wp-content/uploads/2017/07/Winbind-Settings.png
[11]:https://www.tecmint.com/wp-content/uploads/2017/07/Join-Domain-to-Samba4-AD-DC.png
[12]:https://www.tecmint.com/wp-content/uploads/2017/07/Confirm-Winbind-Settings.png
[13]:https://www.tecmint.com/manage-samba4-ad-from-windows-via-rsat/
[14]:https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Samba.jpg
[15]:https://www.tecmint.com/wp-content/uploads/2017/07/Verify-Domain-Joining.jpg
[16]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Users-and-Groups.png
[17]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-User-Info.jpg
[18]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Summary.jpg
[19]:https://www.tecmint.com/wp-content/uploads/2017/07/Grant-Root-Privileges-on-Domain-Users.jpg
[20]:https://www.tecmint.com/author/cezarmatei/
[21]:https://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
[22]:https://www.tecmint.com/free-linux-shell-scripting-books/

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Samba 系列（十四）：在命令行中将 CentOS 7 与 Samba4 AD 集成
============================================================
本指南将向你介绍如何使用 Authconfig 在命令行中将无图形界面的 CentOS 7 服务器集成到[ Samba4 AD 域控制器][3]中。
这类设置提供了由 Samba 持有的单一集中式帐户数据库，允许 AD 用户通过网络基础设施对 CentOS 服务器进行身份验证。
#### 要求
1. [在 Ubuntu 上使用 Samba4 创建 AD 基础架构][1]
2. [CentOS 7.3 安装指南][2]
### 步骤 1：为 Samba4 AD DC 配置 CentOS
1. 在开始将 CentOS 7 服务器加入 Samba4 DC 之前，你需要确保网络接口被正确配置为通过 DNS 服务查询域。
运行 [ip address][4] 命令列出你机器网络接口，选择要编辑的特定网卡，通过针对接口名称运行 nmtui-edit 命令（如本例中的 ens33），如下所示。
```
# ip address
# nmtui-edit ens33
```
[![List Network Interfaces](https://www.tecmint.com/wp-content/uploads/2017/07/List-Network-Interfaces.jpg)][5]
列出网络接口
2. 打开网络接口进行编辑后，添加最适合 LAN 的静态 IPv4 配置，并确保为 DNS 服务器设置 Samba AD 域控制器 IP 地址。
另外，在搜索域中追加你的域的名称，并使用 [TAB] 键跳到确定按钮来应用更改。
当你仅对域 dns 记录使用短名称时, 已提交的搜索域保证域对应项会自动追加到 dns 解析 (FQDN) 中。
[![Configure Network Interface](https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Network-Interface.png)][6]
配置网络接口
3.最后，重启网络守护进程以应用更改，并通过对域名和域控制器 ping 来测试 DNS 解析是否正确配置，如下所示。
```
# systemctl restart network.service
# ping -c2 tecmint.lan
# ping -c2 adc1
# ping -c2 adc2
```
[![Verify DNS Resolution on Domain](https://www.tecmint.com/wp-content/uploads/2017/07/Verify-DNS-Resolution-on-Domain.png)][7]
验证域上的 DNS 解析
4. 另外，使用下面的命令配置你的计算机主机名并重启机器应用更改。
```
# hostnamectl set-hostname your_hostname
# init 6
```
使用以下命令验证主机名是否正确配置。
```
# cat /etc/hostname
# hostname
```
5. 最后，使用 root 权限运行以下命令，与 Samba4 AD DC 同步本地时间。
```
# yum install ntpdate
# ntpdate domain.tld
```
[![Sync Time with Samba4 AD DC](https://www.tecmint.com/wp-content/uploads/2017/07/Sync-Time-with-Samba4-AD-DC.png)][8]
与 Samba4 AD DC 同步时间
### 步骤 2：将 CentOS 7 服务器加入到 Samba4 AD DC
6. 要将 CentOS 7 服务器加入到 Samba4 AD 中，请先用具有 root 权限的帐户在计算机上安装以下软件包。
```
# yum install authconfig samba-winbind samba-client samba-winbind-clients
```
7. 为了将 CentOS 7 服务器与域控制器集成，可以使用 root 权限运行 authconfig-tui，并使用下面的配置。
```
# authconfig-tui
```
首屏选择：
* 在 User Information 中：
* Use Winbind
* 在 Authentication 中使用[空格键]选择:
* Use Shadow Password
* Use Winbind Authentication
* Local authorization is sufficient
[![Authentication Configuration](https://www.tecmint.com/wp-content/uploads/2017/07/Authentication-Configuration.png)][9]
验证配置
8. 点击 Next 进入 Winbind 设置界面并配置如下：
* Security Model: ads
* Domain = YOUR_DOMAIN (use upper case)
* Domain Controllers = domain machines FQDN (comma separated if more than one)
* ADS Realm = YOUR_DOMAIN.TLD
* Template Shell = /bin/bash
[![Winbind Settings](https://www.tecmint.com/wp-content/uploads/2017/07/Winbind-Settings.png)][10]
Winbind 设置
9. 要加入域，使用 [tab] 键跳到 “Join Domain” 按钮，然后按[回车]键加入域。
在下一个页面，添加具有提升权限的 Samba4 AD 帐户的凭据，以将计算机帐户加入 AD，然后单击 “OK” 应用设置并关闭提示。
请注意，当你输入用户密码时，凭据将不会显示在屏幕中。在下面再次点击 OK，完成 CentOS 7 的域集成。
[![Join Domain to Samba4 AD DC](https://www.tecmint.com/wp-content/uploads/2017/07/Join-Domain-to-Samba4-AD-DC.png)][11]
加入域到 Samba4 AD DC
[![Confirm Winbind Settings](https://www.tecmint.com/wp-content/uploads/2017/07/Confirm-Winbind-Settings.png)][12]
确认 Winbind 设置
要强制将机器添加到特定的 Samba AD OU 中，请使用 hostname 命令获取计算机的完整名称，并使用机器名称在该 OU 中创建一个新的计算机对象。
将新对象添加到 Samba4 AD 中的最佳方法是已经集成到[安装了 RSAT 工具][13]的域的 Wubdows 机器上使用 ADUC 工具。
重要：加入域的另一种方法是使用 authconfig 命令行，它可以对集成过程进行广泛的控制。
但是，这种方法很容易因为其众多参数造成错误，如下所示。该命令必须输入一条长命令行。
```
# authconfig --enablewinbind --enablewinbindauth --smbsecurity ads --smbworkgroup=YOUR_DOMAIN --smbrealm YOUR_DOMAIN.TLD --smbservers=adc1.yourdomain.tld --krb5realm=YOUR_DOMAIN.TLD --enablewinbindoffline --enablewinbindkrb5 --winbindtemplateshell=/bin/bash--winbindjoin=domain_admin_user --update --enablelocauthorize --savebackup=/backups
```
10. 机器加入域后，通过使用以下命令验证 winbind 服务是否正常运行。
```
# systemctl status winbind.service
```
11. 接着检查是否在 Samba4 AD 中成功创建了 CentOS 机器对象。从安装了 RSAT 工具的 Windows 机器使用 AD 用户和计算机工具，并进入到你的域计算机容器。一个名为 CentOS 7 Server 的新 AD 计算机帐户对象应该在右边的列表中。
12. 最后，使用文本编辑器打开 samba 主配置文件（/etc/samba/smb.conf）来调整配置，并在 [global] 配置块的末尾附加以下行，如下所示：
```
winbind use default domain = true
winbind offline logon = true
```
[![Configure Samba](https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Samba.jpg)][14]
配置 Samba
13. 为了在 AD 帐户首次登录时在机器上创建本地家目录，请运行以下命令
```
# authconfig --enablemkhomedir --update
```
14. 最后，重启 Samba 守护进程使更改生效，并使用一个 AD 账户登陆验证域加入。AD 帐户的家目录应该会自动创建。
```
# systemctl restart winbind
# su - domain_account
```
[![Verify Domain Joining](https://www.tecmint.com/wp-content/uploads/2017/07/Verify-Domain-Joining.jpg)][15]
验证域加入
15. 通过以下命令之一列出域用户或域组。
```
# wbinfo -u
# wbinfo -g
```
[![List Domain Users and Groups](https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Users-and-Groups.png)][16]
列出域用户和组
16. 要获取有关域用户的信息，请运行以下命令。
```
# wbinfo -i domain_user
```
[![List Domain User Info](https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-User-Info.jpg)][17]
列出域用户信息
17. 要显示域摘要信息，请使用以下命令。
```
# net ads info
```
[![List Domain Summary](https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Summary.jpg)][18]
列出域摘要
### 步骤 3：使用 Samba4 AD DC 帐号登录CentOS
18. 要在 CentOS 中与域用户进行身份验证，请使用以下命令语法之一。
```
# su - ‘domain\domain_user’
# su - domain\\domain_user
```
或者使用下面的语法来防止 winbind 使用 default domain = true 参数来设置 samba 配置文件。
```
# su - domain_user
# su - domain_user@domain.tld
```
19. 要为域用户或组添加 root 权限，请使用 visudocommand 编辑 sudoers 文件，并添加以下截图所示的行。
```
YOUR_DOMAIN\\domain_username ALL=(ALL:ALL) ALL #For domain users
%YOUR_DOMAIN\\your_domain\ group ALL=(ALL:ALL) ALL #For domain groups
```
如果 winbind 使用 default domain = true 参数设置 samba 配置文件，那么使用下面的配置。
```
domain_username ALL=(ALL:ALL) ALL #For domain users
%your_domain\ group ALL=(ALL:ALL) ALL #For domain groups
```
[![Grant Root Privileges on Domain Users](https://www.tecmint.com/wp-content/uploads/2017/07/Grant-Root-Privileges-on-Domain-Users.jpg)][19]
授予域用户 root 权限
20. 针对 Samba4 AD DC 的以下一系列命令也可用于故障排除：
```
# wbinfo -p #Ping domain
# wbinfo -n domain_account #Get the SID of a domain account
# wbinfo -t #Check trust relationship
```
21. 要离开该域, 请使用具有提升权限的域帐户对你的域名运行以下命令。从 AD 中删除计算机帐户后, 重启计算机以在集成进程之前还原更改。
```
# net ads leave -w DOMAIN -U domain_admin
# init 6
```
就是这样了！尽管此过程主要集中在将 CentOS 7 服务器加入到 Samba4 AD DC 中，但这里描述的相同步骤也适用于将 CentOS 服务器集成到 Microsoft Windows Server 2012 AD 中。
--------------------------------------------------------------------------------
作者简介：
Matei Cezar
我是一个电脑上瘾的家伙，开源和基于 linux 的系统软件的粉丝，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: https://www.tecmint.com/integrate-centos-7-to-samba4-active-directory/
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)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:https://www.tecmint.com/author/cezarmatei/
[1]:https://www.tecmint.com/install-samba4-active-directory-ubuntu/
[2]:https://www.tecmint.com/centos-7-3-installation-guide/
[3]:https://www.tecmint.com/install-samba4-active-directory-ubuntu/
[4]:https://www.tecmint.com/ip-command-examples/
[5]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Network-Interfaces.jpg
[6]:https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Network-Interface.png
[7]:https://www.tecmint.com/wp-content/uploads/2017/07/Verify-DNS-Resolution-on-Domain.png
[8]:https://www.tecmint.com/wp-content/uploads/2017/07/Sync-Time-with-Samba4-AD-DC.png
[9]:https://www.tecmint.com/wp-content/uploads/2017/07/Authentication-Configuration.png
[10]:https://www.tecmint.com/wp-content/uploads/2017/07/Winbind-Settings.png
[11]:https://www.tecmint.com/wp-content/uploads/2017/07/Join-Domain-to-Samba4-AD-DC.png
[12]:https://www.tecmint.com/wp-content/uploads/2017/07/Confirm-Winbind-Settings.png
[13]:https://www.tecmint.com/manage-samba4-ad-from-windows-via-rsat/
[14]:https://www.tecmint.com/wp-content/uploads/2017/07/Configure-Samba.jpg
[15]:https://www.tecmint.com/wp-content/uploads/2017/07/Verify-Domain-Joining.jpg
[16]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Users-and-Groups.png
[17]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-User-Info.jpg
[18]:https://www.tecmint.com/wp-content/uploads/2017/07/List-Domain-Summary.jpg
[19]:https://www.tecmint.com/wp-content/uploads/2017/07/Grant-Root-Privileges-on-Domain-Users.jpg
[20]:https://www.tecmint.com/author/cezarmatei/
[21]:https://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
[22]:https://www.tecmint.com/free-linux-shell-scripting-books/