From i understand cpanel has a global time that if you server is on automatic updates it will sync with cpanel at this time well with my 5 servers ive noticed they all update at midnight uk time every night and there in different location this may not be the same for you i dont know its just a theory
Well, I would like to update the system whenever it has an alert. I use RedHat and am written in newsletter. Whenever it arises a bug, I have to update of one for a. So, I wanted whenever it was necessary to update, update all of an unique time.
You need to write a shell script to accomplish this task. Develop a shell script that performs the "update" and write another script that will log into each servers and download the update script and runs it. In this way, you can run the update on all servers. Most of the system administers, I for one, follow this method to perform a task on multiple servers.
But he would have some tutorial for that? Why I use Linux, but do not know how to program in shell script. And I think I do not am going to learn in little time. If you had a tutorial, article, book, anything that can assist, even though are a little different than I want. Something for at least I try to initiate in the development of one stays how I want, it would be great.
I use a tool called Capistrano to manage multiple servers.
It was built specificially for the task. It's commonly used to roll out Ruby on Rails applications, but the way it is designed allows it to perform pretty much anything server related. I'm sure there are some great capfile tasks floating around that will enhance Cap.