Re: [exim] Outgoing IP address

On 11/04/2010 03:42 AM, Jim Cheetham wrote:
> On 04/11/10 12:56, Peter Thomassen wrote:
>> Today I did an upgrade at the VM _host_ from Debian Lenny to Squeeze,
>> i.e. I did not upgrade anything in the virtual machine where Exim runs.
>> Then suddenly, Exim started to use both IP addresses for outgoing
>> connections. I could not figure out when it would use which one.
>
> It might help if you told us what sort of VM host you are running --
> Xen, VMWare, VirtualBox, what?

OpenVZ, which is a paravirtualization technique. (I am going to migrate
that to KVM, that's why I upgraded the host from Debian Lenny to Squeeze.)

> What sort of network interface is available to the VM guest? Bridged,
> NATTed, other?

NAT.

You are right, when using OpenVZ, changing the host environment then
also changes the guest environment.

Do you know the mechanism that decides which IP address to use, if the
interface option is not given to the smtp transport? Of course, Linux
decides that question, but do you know how this is done?

The question seems to be actually off-topic ... hm.

Greetings,
Peter