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• ansible works

vi /etc/ansible/ansible.cfg

turn on host_key_checking = False by uncomment to not check key when ssh: ECDSA key fingerprint

set static ip for servers:

vi /etc/sysconfig/network-scripts/ifcfg-enp***

Add: IPADDR=192.168.xxx.xxx

systemctl restart network

** ansible

ansible -a

ansible all -a "/sbin/reboot"

ansible -m

ansible target1 -m ping

name: Play 2 hosts: localhost tasks: - name: Install web service yum: name: httpd state: present - name: start web server service: name: httpd state: started

** modules: command, script, yum, service, ...

** ansible-playbook playbook.yml *** ansible-playbook --help