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23
sources/tech/20191125 How to Install Ansible (Automation Tool) on CentOS 8-RHEL 8.md → translated/tech/20191125 How to Install Ansible (Automation Tool) on CentOS 8-RHEL 8.md
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@ -119,35 +119,34 @@ Python 3.6.8
保存并退出文件。
Once the inventory file (/etc/ansible/hosts) is updated then exchange your user’s ssh public keys with remote systems which are part of “labservers” group.
更新清单文件（/etc/ansible/hosts）后，将用户的 ssh 公钥与作为 “”组一部分的远程系统交换。
更新清单文件（/etc/ansible/hosts）后，将用户的 ssh 公钥与作为 “labservers” 组一部分的远程系统交换。
Let’s first generate your local user’s public and private key using ssh-keygen command,
让我们首先使用 ssh-keygen 命令生成本地用户的公钥和私钥，
```
[root@linuxtechi ~]$ ssh-keygen
```
Now exchange public key between the ansible server and its clients using the following command,
现在使用以下命令在 ansible 服务器及其客户端之间交换公钥，
```
[root@linuxtechi ~]$ ssh-copy-id root@linuxtechi
[root@linuxtechi ~]$ ssh-copy-id root@linuxtechi
```
Now let’s try couple of Ansible commands, first verify the connectivity from Ansible server to its clients using ping module,
现在，让我们尝试几个 Ansible 命令，首先使用 ping 模块验证 Ansible 服务器与客户端的连接，
```
[root@linuxtechi ~]$ ansible -m ping "labservers"
```
**Note:** If we don’t specify the inventory file in above command then it will refer the default hosts file (i.e /etc/ansible/hosts)
**注意：** 如果我们没有在上面的命令中指定清单文件，那么它将引用默认主机文件（即 /etc/ansible/hosts）
Output,
输出：
![ansible-ping-module-centos8][1]
Let’s check kernel version of each client using Ansible shell command,
让我们使用 Ansible shell 命令检查每个客户端的内核版本，
```
[root@linuxtechi ~]$ ansible -m command -a "uname -r" "labservers"
@ -158,7 +157,7 @@ Let’s check kernel version of each client using Ansible shell command,
[root@linuxtechi ~]$
```
Use the following ansible command to list all hosts from the inventory file,
使用以下命令列出清单文件中的所有主机，
```
[root@linuxtechi ~]$ ansible all -i /etc/ansible/hosts --list-hosts
@ -170,7 +169,7 @@ Use the following ansible command to list all hosts from the inventory file,
[root@linuxtechi ~]$
```
Use the following ansible command to list only hosts from “labservers” group
使用以下 ansible 命令仅列出 “labservers” 组中的主机。
```
root@linuxtechi ~]$ ansible labservers -i /etc/ansible/hosts --list-hosts
@ -180,7 +179,7 @@ root@linuxtechi ~]$ ansible labservers -i /etc/ansible/hosts --list-hosts
[root@linuxtechi ~]$
```
That’s all from this article, we have successfully demonstrated on how to install and use Ansible on CentOS 8 and RHEL 8 System. Please do you share your feedback and comments.
本文就是这些了，我们成功演示了如何在 CentOS 8 和 RHEL 8 系统中安装和使用 Ansible。请分享你的反馈和意见。
* [Facebook][4]
* [Twitter][5]
@ -195,7 +194,7 @@ via: https://www.linuxtechi.com/install-ansible-centos-8-rhel-8/
作者：[Pradeep Kumar][a]
选题：[lujun9972][b]
译者：[译者ID](https://github.com/译者ID)
译者：[geekpi](https://github.com/geekpi)
校对：[校对者ID](https://github.com/校对者ID)
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