fine - so i make my answer more precise: if it comes to that you should re-think your achitecture instead seek for workarounds which will hide the problem for some time and sonner or later make a re-design of the architecture much harder than starting to do so earlier
but your choice..... Am 21.10.2013 22:25, schrieb Reymer Antonio Vargas Solano: > I know how HA n LB works, is just that is not what I'm looking for for > example if you have and imap server that > stores the mailboxes in a LUNs of a SAN, that only store the emails received > for the postfix servers, transfered by > LMTP way, how you can configure another IMAP server that use POP and IMAP > protocols without access the SAN just > communicating with the other Dovecot server... > > On Mon, Oct 21, 2013 at 2:20 PM, Reindl Harald <[email protected] > <mailto:[email protected]>> wrote: > > no i am not kidding you > > what i linked is how in professional environments typically things > are done - virtually nobody would talk from one IMAP server to > another one to deliver mails to the client > > with clustedred and replicated filesystems you have all servers > accesing the same mail storage and your DNS-record has all of > the servers listed > > http://en.wikipedia.org/wiki/Round-robin_DNS > > so before you assume someone is kidding you google how load balancing > is done in large environments, read the links others provide and if > you are not on a that large environment one server would be enough > > Am 21.10.2013 22:10, schrieb Reymer Antonio Vargas Solano: > > Are you kidding me? Is not how or where to store the mailboxes... is > how to connect an imap server to another > IMAP > > server that have mailboxes! > > > > On Mon, Oct 21, 2013 at 1:30 PM, Reindl Harald <[email protected] > <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>>> wrote: > > > > > > > > Am 21.10.2013 21:23, schrieb Reymer Antonio Vargas Solano: > > > At my university we are trying to implement a distributed email > backend, > > > but I have some troubles, > > > > > > The topology: > > > > > > Server A: Postfix+LMTP # MTA > > > Server B: Dovecot+LMTP # Just mailboxes > > > Server C: Dovecot # POP3/IMAP > > > > > > Right now the Server A can leave a received email to the Server > B, but I > > > don't know how to communicate Server C to the Server B to > retrieve the > > > emails. > > > > > > I think that we should use IMAP protocol, but I am confused > about how to > > > connect them, I don't know if we have to use a proxy IMAP server, > or > > > another thing. > > > > > > Can anyone give me an idea? > > > > http://en.wikipedia.org/wiki/Storage_area_network > > http://en.wikipedia.org/wiki/Clustered_file_system
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