pod wrote: > Richard Hobbs <[email protected]> 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: [email protected] Web: http://www.toshiba-europe.com/research/ Tel: +44 1223 436999 Mobile: +44 7811 803377
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