You write in "cli" on one server, and this is done immediately on all absolutely identical copies of the server?

Question

linux

Hello.
Tell me, what is the easiest way to administer (install new packages, edit scripts, edit files) simultaneously on 3 absolutely identical vps servers?
Puppet is very complicated and it makes no sense to use it for 3 servers.
Is there something like this:

you write in command line on one server, and it was executed at once on all servers?

+ To make this possible:

I edit configuration files or scripts as text files, then I save them to the disk of the "main" server and they are automatically copied to the other servers.

upd: Are these two points possible with Ansible?
Thanks

Answer 1

ansible

Answer 2

ansible, pssh

Answer 3

PAC Manager,
SecureCRT

Answer 4

Ansible.
Or if you need an easy solution, generally a bicycle, such as a task in the crown, which regularly downloads and executes a script from a shared resource.
Wrote a script, put. And wait.