How to organize a corporate server?

Question

Proxmox

Good day, I would like to get advice or advice from people with experience.
There is fiber optic network access, a dedicated IP, a router, and the server itself:
CPU: I7 6700
RAM: 32 GB
HDD - 4 pcs of 6 trb
SSD - 300 GB

THE ESSENCE IS THIS:
Now someone has put a crooked and non-working windows server very ancient , and put one site on it. We now need to expand the system, install about 10 more sites, and create an owncloud corporate solution.

For all such games, windows server is not the best solution in my opinion.
Now my plan is this:
install KVM proxmox, and then create virtual machines there on the file dump, on the site control panel, and all sorts of other joys.
Professionals, is the combination described above good?
Questions:
1) How easy will it be to open a virtulka on the network to make a web server (proxmox) there?
2) Organize RAID using a motherboard or proxmox?
3) Suppose I still have white IPs, can I easily scatter them among virtual machines (if everything goes over 1 cable)?
PS change of iron, installation of windows server (I love linux, sorry), what they gave me, so far I'm working.

Answer 1

1) Is it so easy to open a virtulka to the network to make a web server (proxmox) there?
You can use proxmox as a firewall, but personal experience shows that it is better to have a separate piece of hardware under the firewall, for example, microcurrent.
2) Organize RAID using a motherboard or proxmox?
Proxmox has been offering zfs during installation for a long time, you can move the zfs log to ssd, it will be normal for Linux containers.
3) Let's say I still have white IPs, can I easily scatter them among virtual machines (if everything goes over 1 cable)?
Like the first question, the answer is YES, but a separate piece of iron is better.
Personal experience
CPU: I7
RAM: 32 GB
HDD - 3 pcs x 1 trb
SSD nvme 256 Samsung
This whole thing has been living for 4 years, and not one fall. I found a patch that allows you to activate backups on proxmox diff.
Zfs, two disks in the mirror, they have a hypervisor, one disk for backups. Ssd bought a year ago. 1c moved to sql and zfs stopped coping, there are windows containers on ssd. Previously, the Linux container was in the role of firewall, gw ,dhcp. If the container with the firewall did not start, there is no access to the machines, so I replaced it with an iron MikroTik. I connected an uninterruptible power supply, via usb I configured the VM to be turned off when the electricity was turned off.

Answer 2

Make a plan
Agree with your superiors
View licenses if you need to buy anything
Open server on the Internet is nonsense, so put at least a microtic or a used cisco
Deploy a virtual machine and put Lts Ubuntu in it Set
up port forwarding on the router and isolate network segments
Ps love love but do what you need business

Answer 3

1) Easy. And you can protect it with a firewall raised on the same host (namely, on the host, not on virtual machines).
2) Not exactly by means of the motherboard; normally it will be mdadm tools on linux.
3) You can do it that way, but it's better to keep white addresses under the control of the firewall and forward exactly what is required (ports) and nothing more to the virtual machines; to leave gray addresses to virtualkam.