[Dovecot] Migration questions...

[Richard Hobbs]

pod wrote:
> Richard Hobbs <richard.hobbs at crl.toshiba.co.uk> writes:
> 
>>   19. Once everything is working perfectly, send an email to the entire
>> company instructing them what to do after the outage and arrange an
>> outage and do the following steps as soon as the outage begins:
>>
>>     a. Unplug DMZ switch from firewall to make delivered mail wait at
>> the sender.
> [...]
>>     i. Plug DMZ switch back into firewall and begin monitoring exim logs
>> to check that mail is being delivered.
> 
> If I'm not misunderstanding the steps between 19.a -- 19.i are going to be
> done while not network connected?  I'd be slightly concerned that these
> steps may involve anything some that needs to do DNS lookups or the like
> at which point they may hit long(ish) timeouts or just fail completely.

Because the mail servers are in a DMZ, they have their own DNS running
locally. Local DNS lookups, therefore, shouldn't be a problem.

Good point though, so thank you for that - i ought to adjust my
instructions to include installation of the DNS service! lol

Thanks again,
Richard.

-- 
Richard Hobbs (IT Specialist)
Toshiba Research Europe Ltd. - Cambridge Research Laboratory
Email: richard.hobbs at crl.toshiba.co.uk
Web: http://www.toshiba-europe.com/research/
Tel: +44 1223 436999        Mobile: +44 7811 803377
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