I have a debian server running some services (mail, web, git, mysql...). But it is alone, meaning that if it breaks, I have to repair it to access my services.
I'd like to put a second server so that if the first one dies the second one is automatically ready to work. I don't want any of this servers to be a master and the other one a slave. The idea is to prevent hardware failure from any of the two servers.
I found lots of info about how to create some big clusters, but I haven't found any thing that imply only two servers.