With dns server and two host (pop3-a and pop3-b)
2011/12/4, Délsio Cabá <[email protected]>:
> Hi,
>
> I have also projected a similar solution but I got stuck in an Important
> question:
> How do you ensure redundancy for the POP3 access?
> If users have configured in the pop3: mail.domain.com and that address
> becomes unavailable.
> How do you ensure that if a POP3 server goes down another replaces without
> any downtime?
>
> Thanks!
>
> On 3 December 2011 22:46, Casey Price <[email protected]> wrote:
>
>> Just wanted to post a quick update in regards to the QMT ISP Array I've
>> been working on setting up for the past while. I initially followed Jake's
>> video and got some tips from both and him and Schubes regarding a few
>> questions I had...anyways, I've actually setup my back-end DB servers
>> several times now, each time trying something a little bit different, and
>> I'm liking the latest incarnation.
>>
>> Decided I'd venture into the unknown and try out a "cluster-aware" file
>> system instead of using ext3/4 for my mailstore. Ended up checking out
>> OCFS2, and I've liked what I've seen so far. Also decided to try out NFS4
>> (which didn't come without some initial issues, but alas its working). So
>> I
>> have 2 Cent 5.7 boxes running OCFS2 over DRBD8.3, which is then exported
>> over NFS4 on both boxes, then I'm using heartbeat to control the IP
>> address
>> assignment.
>>
>> The vpopmail & roundcubemail DB's are being replicated between the two,
>> and I've setup a test front-end machine which accesses those databases and
>> mounts the NFS4 export (which contains my qmail config, squirrelmail data,
>> and I'm working on getting the rcm stuff on there as well). I'm just
>> working on tightening the firewall a bit, then they should be ready to
>> take
>> down to the data center and get hooked up and begin testing.
>>
>> Well that's about it. I'm thinking if all goes well with testing I may do
>> a little write up for the wiki in case any other have any interest in
>> setting up a similar system. Thanks again for everyone that's answered my
>> incredibly long emails and never-ending questions :-)
>>
>> --
>> Casey Price
>>
>> Smile Global Technical Support
>> Submit or check trouble tickets http://billing.smileglobal.com
>> www.smileglobal.com
>>
>> Follow us on Twitter <https://twitter.com/#%21/SmileInternet>
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>>
>
--
Enviado desde mi dispositivo móvil
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