Certificate Deployment

[Net Warrior]

Hi there guys.
My question is simple,  one I've created the certficates and I want to deploy the public key to the clients,.
which will be he best methood to do the deployment of the cacert.pem file?

When you have 10 machines you con go one by one and copy that file by yourself, bu suppose you have a mixture
of about 200 host of linux/windows machines,how  do you do that?

Thanks for your time.