Hello, I'm about setting up a second server which will be used for webhosting. I found zend-server and it looks pretty nice. This would be one example of a customized OS. You know other customizations? Greets
If you do Shared Hosting, the easiest option is to run the latest stable version of CentOS or CloudLinux. You'd run cPanel on any of them them, if you need a good control panel.