[NTLUG:Discuss] Web-server Farm - Networking Question

[David Stanaway]

Very good point.

But via what protocol are the users of the virtual sites editing the 
content? Do they have a special admin web portal running on their 
virtual site?
Do they have chrooted FTP access into a home on a central fileserver 
which is accessed via NFS from their virtual site?
Do they have access via some other mechanism that needs a special proxy 
server?

Stuart Johnston wrote:
> Each VM will always have its own IP address.  The question is public vs. 
> private.
> 
> The public address will be assigned to the proxy server and all external 
> DNS and such will point to that.  When you move VMs from one physical 
> server to another, the VM can keep its private address.  The proxy will 
> still point to that same address and no external changes need to be 
> made.  There is no need for the proxy and VM to be on the same physical 
> server as long as the addresses are internally routeable.
> 
> David Stanaway wrote:
>> For your live-migration - that will be MUCH easier if each VM has its 
>> own IP. Then you just move the vm config and disk to the other host, and 
>> make if necessary a static routing change. No need for making DNS 
>> changes with unspecified downtime after the change while it ripples out.
>>
>> David Simmons wrote:
>>>> Hmmm, maybe the proxy thing is just what you need then.  I see
>>> where
>>>> you're coming from now.
>>> Maybe this'll help:
>>>
>>>   rock:     
>>> me       :hard-place
>>>
>>>
>>>        :^)
>>>
>>>
>>> _______________________________________________
>>> http://www.ntlug.org/mailman/listinfo/discuss
>>>
>>
>> _______________________________________________
>> http://www.ntlug.org/mailman/listinfo/discuss
> 
> 
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
>