Hello everyone.
This is my first question here so please forgive me if i'm out of topic or
something...
I'm building up this architecture with postfix + ldap + Courier IMAP
(i hope the below ascii art is displaying correctly :)
|-------------|
| postfix1 | very big storage
| LDAP1 |-------------|********************
| server1 | | *
|-------------| | /home1 *
| | *
| |-------------------*
|-------------| | *
| postfix2 | | *
| LDAP2 |-------------| /home2 *
| server2 | | *
|-------------| | *
| |-------------------*
| | *
|-------------| | /home3 *
| postfix3 | | *
| LDAP3 |-------------|********************
| server3 |
|-------------|
Now, let me explain how this is going to work.
This architecture works with Qmail+Ldap, i need to use PostFix instead (for
many reason)
server1,2,3 have 1 balancer in fron which simply redistribute the traffinc
among the 3 servers.
if one server goes down, the one next to him will Up his ip address and mount
his partition on the storage untill the server restarts correctly.
Now, i've a couple of questione here.
1) I've never used Courier IMAP, but reading on the internet i've found that it
use gethostbyname() to resolve and this may cause an infinite loop for a host
with 2 interface but one hostname if one server goes down.
So, i'm afraid that i will be able to installa courier-imap on each server and
this will cause a big problem to the scalability of the system.
2) Has anyone ever tryed something like this and its ablet to redirect me to
some good documentation?
Thank you very much for your time and for any tip or advice.
Good bye everyone.
--
spambox <spam...@fastwebnet.it>
