Hi Richard,
I think its better balance with a router too. Is there any problem with
use postfix+amavis in the front-end? I did not understand what the
advantage of use dovecot LMTP with director too.
On 07/25/2014 01:58 AM, Richard Hector wrote:
On 25/07/14 15:30, Eduardo Ramos wrote:
Hi Richard,
In fact I thought it a little confusing. I had some bad experience with
DNS RR when one of my IMAP server got down. Clients continued trying
connect to broken server and it caused some problems. But when
everything is ok, it works well.
I drew a diagram with my idea. What do you think?
https://dl.dropboxusercontent.com/u/41373531/mail.png
Interesting, thanks. I'd forgotten to draw in the director ring.
As I said, if we need load balancing we can do that on the router, which
as I understand it will do more or less the same thing as LVS. It might
be Cisco SLB, but I'm not sure; I'm not the router guy :-)
But what interests me most is that your diagram shows the mx servers
connecting directly to the backend servers, rather than going through
the proxy director - I thought that was a no-no. Oh, and I don't think
we want to load down our front-end MX servers with amavis, either.
Thanks for your input :-)
Richard
