NICs on a virtualization box

[techlists at phpcoderusa.com]

aren't the ports associated with the IP?

On 2022-04-20 08:57, Bob Elzer via PLUG-discuss wrote:
> I know you can assign multiple IP's to one Nic, but I don't know how
> each VPS can run a service on the same ports.
> 
> On Wed, Apr 20, 2022 at 8:51 AM Keith Smith via PLUG-discuss
> <plug-discuss at lists.phxlinux.org> wrote:
> 
>> Hi,
>> I'm wondering how VPS servers are configured.  I have a VPS with a
>> dedicated IP.  I assume I share a box that has a number of virtual
>> machines and I assume each VPS has a dedicated IP.
>> 
>> This is a hardware question.  I assume the box has at least 2
>> network
>> cards.  So lets say the server has 20 VPS on it and each has a
>> dedicated
>> IP. Does the box need a NIC for each IP or does the box have NIC
>> cards
>> that can service/route multiple IPs?
>> 
>> I have a Dell consumer grade mini tower computer with a single NIC
>> which
>> is built into the motherboard.  I assume that NIC can only service
>> one
>> IP address, is that correct or can I install virtualization software
>> on
>> this computer and use the NIC for multiple IP's?
>> 
>> Did I just open a can of worms?
>> 
>> Thanks in advance for your wisdom.
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