On 2020-08-11 21:38, Odhiambo Washington wrote:
On Tue, 11 Aug 2020 at 20:23, Pete Wright <[email protected]> wrote:
On 8/11/20 5:49 AM, Odhiambo Washington wrote:
> Hi infoomatic,
>
> Looks like I have to top-post so as to not mess the thread:
>
> The reason I need a VM is because I need to totally independent host,
> with an independent name, with access to all ports of its own.
> It looks like I need another public IP for that.
It depends on your use case. I have a single IPv4 address allocated
to
one of my systems and have setup various CNAME entries in DNS that all
resolve to the same IP. I think that's a pretty common design pattern
for people who colo their own servers and host multiple services on
them.
the tricky part will be if you want to host multiple instances of the
same service though (multiple webservers for example). in that case
you'll most likely need multiple IPv4 address assigned to your system.
That's exactly where I am.
Suppose I obtained another IP for the VM, how do I make the VM the only
host listening on that IP then?
I still don't see why you would need multiple IP addresses for services
on a single physical server. It would usually be enough to handle this
as
virtual hosts on the application level rather than the OS level:
https://httpd.apache.org/docs/current/vhosts/
http://www.postfix.org/VIRTUAL_README.html
In that case, you only need to worry about CNAME and MX records in DNS.
/Henrik
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