Issues related to applications and software problems and general support
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I'm considering building a Centos server install that will allow the building of various centos systems, possibly different versions of Linux and providing access over the net. Any ideas on the hardware/software I'd need, and the best way to provide secure access?
Which version of CentOS are you intending to install. You've posted in the CentOS 6 forum and that only has 3 or 4 months of life left so it's definitely not a good choice. One of us can move this thread to the right area once you say.
CentOS 7 is from 2014 and has 3.5 years left, CentOS from last year and about 9 years left. CentOS 6 from 2010 and months left... pick one
Running VMs under CentOS of any version is fairly standard practice and syou would need to secure it, just like you would any other distro. As for hardware specs, without knowing what you intend to do with it, it's tricky to say. A small VM would have 2GB RAM and a vcpu or two. A larger one might be tends of GB of RAM and lots more vcpus. You'll want to allow 2-4GB for the host to use for itself and also make sure that you don't overload the machine to the point where it has no processor power left to run things.