1. redhat.rhel_system_roles.network：使用redhat.rhel_system_roles.network这个role，确保在centos8.example.com中id为con160的连接处于up状态，rhel9.example.com中id为ens160的连接处于up状态，centos7.example.com中id为ens33的连接处于up状态；
2. redhat.rhel_system_roles.network：已知rhel9.example.com，centos8.example.com这两台主机各新增了一个网卡设备ens224，centos7.example.com这台主机新增了一个网卡设备ens36。虽然三台受控主机上都有新增的网卡设备，但都缺少连接文件，所以请为三台受控主机新增的网卡设备添加连接文件；
3. redhat.rhel_system_roles.network：已知rhel9.example.com，centos8.example.com这两台主机上，有一个针对网卡设备ens160的连接文件con160，请暂时停掉这个连接文件；
4. network_connections.name指的是什么的名字？__________________，network_connections.interface_name指的是什么的名字？____________________；
5. network_connections.name指的是什么的名字？__________________，network_connections.interface_name指的是什么的名字？____________________；
6. network_connections.name指的是什么的名字？__________________，network_connections.interface_name指的是什么的名字？____________________；
7. ansible.builtin.hostname：将rhel9.example.com主机的主机名改为r999，将centos8.example.com主机的主机名改为c888，将centos7.example.com主机的主机名改为c777；
8. ansible.builtin.hostname：将rhel9.example.com主机的主机名改为a，将centos8.example.com主机的主机名改为b，将centos7.example.com主机的主机名改为c；
9. ansible.posix.firewalld：确保在受控主机上，http服务永远都是放行状态；
10. ansible.posix.firewalld：确保在受控主机上，sshd服务永远都是放行状态；
11. ansible.posix.firewalld：在centos8和rhel9上，将ens160这块网卡永久移交到home这个zone当中；
12. ansible.posix.firewalld：在centos8和rhel9上，将ens224这块网卡永久移交到home这个zone当中；
13. ansible_facts.interfaces：列出所有受控主机的网络设备名称；
14. ansible_facts.ens160：列出centos8与rhel9这两台受控主机的名为ens160的网卡设备的详细信息；
15. ansible_facts.ens37：列出centos7这台受控主机的名为ens37的网卡设备的详细信息；
16. 写一个playbook，包含几个任务：
（1）获取受控主机所有的IPv4地址；
（2）获取受控主机所有的IPv6地址；
（3）获取受控主机所有的DNS服务器的IP地址，以及解析DNS时使用的域名；
1. /* A20240606.yaml */
---
- name: Play1
hosts: "centos8*"
vars:
network_connections:
- name: con160
state: up
roles:
- redhat.rhel_system_roles.network
- name: Play2
hosts: "rhel9*"
vars:
network_connections:
- name: ens160
state: up
roles:
- redhat.rhel_system_roles.network
- name: Play3
hosts: "centos7*"
vars:
network_connections:
- name: ens33
state: up
roles:
- redhat.rhel_system_roles.network
...
2. /* B20240606.yaml */
---
- name: Play1
hosts: rhel9.example.com
vars:
network_connections:
- name: con224
state: up
type: ethernet
interface_name: ens224
ip:
address: 192.168.111.9/24
dns: 192.168.111.1
roles:
- redhat.rhel_system_roles.network
- name: Play2
hosts: centos8.example.com
vars:
network_connections:
- name: con224
state: up
type: ethernet
interface_name: ens224
ip:
address: 192.168.111.8/24
dns: 192.168.111.1
roles:
- redhat.rhel_system_roles.network
- name: Play3
hosts: centos7.example.com
vars:
network_connections:
- name: con36
state: up
type: ethernet
interface_name: ens36
ip:
address: 192.168.111.7/24
dns: 192.168.111.1
roles:
- redhat.rhel_system_roles.network
...
3. /* C20240606.yaml */
---
- name: Play1
hosts: rhel9.example.com,centos8.example.com
vars:
network_connections:
- name: con160
state: down
roles:
- redhat.rhel_system_roles.network
...
4. network_connections.name指的是连接文件的名字，network_connections.interface_name指的是网卡设备的名字
5. network_connections.name指的是连接文件的名字，network_connections.interface_name指的是网卡设备的名字
6. network_connections.name指的是连接文件的名字，network_connections.interface_name指的是网卡设备的名字
7. /* D20240606.yaml */
---
- name: Play1
hosts: rhel9.example.com
tasks:
- name: Task1
ansible.builtin.hostname:
name: r999
- name: Play2
hosts: centos8.example.com
tasks:
- name: Task1
ansible.builtin.hostname:
name: c888
- name: Play3
hosts: centos7.example.com
tasks:
- name: Task1
ansible.builtin.hostname:
name: c777
...
8. /* E20240606.yaml */
---
- name: Play1
hosts: rhel9.example.com
tasks:
- name: Task1
ansible.builtin.hostname:
name: a
- name: Play2
hosts: centos8.example.com
tasks:
- name: Task1
ansible.builtin.hostname:
name: b
- name: Play3
hosts: centos7.example.com
tasks:
- name: Task1
ansible.builtin.hostname:
name: c
...
9. /* F20240606.yaml */
---
- name: Play1
hosts: all
tasks:
- name: Task1
ansible.posix.firewalld:
service: http
permanent: true
state: enabled
...
10. /* G20240606.yaml */
---
- name: Play1
hosts: all
tasks:
- name: Task1
ansible.posix.firewalld:
service: httpd
permanent: true
state: enabled
...
11. /* H20240606.yaml */
---
- name: Play1
hosts: centos8.example.com,rhel9.example.com
tasks:
- name: Task1
ansible.posix.firewalld:
interface: ens160
zone: home
state: enabled
permanent: true
...
12. /* I20240606.yaml */
---
- name: Play1
hosts: centos8.example.com,rhel9.example.com
tasks:
- name: Task1
ansible.posix.firewalld:
interface: ens224
zone: home
state: enabled
permanent: true
...
13. /* J20240606.yaml */
---
- name: Play1
hosts: all
tasks:
- name: Task1
ansible.builtin.debug:
var: ansible_facts.interfaces
...
14. /* K20240606.yaml */
---
- name: Play1
hosts: centos8.example.com,rhel9.example.com
tasks:
- name: Task1
ansible.builtin.debug:
var: ansible_facts.ens256
...
15. /* L20240606.yaml */
---
- name: Play1
hosts: centos7.example.com
tasks:
- name: Task1
ansible.builtin.debug:
var: ansible_facts.ens37
...
16. /* M20240606.yaml */
---
- name: Play1
hosts: all
tasks:
- name: Task1
ansible.builtin.debug:
var: ansible_facts.all_ipv4_addresses
- name: Task2
ansible.builtin.debug:
var: ansible_facts.all_ipv6_addresses
- name: Task3
ansible.builtin.debug:
var: ansible_facts.dns
...