running master, slave on the same computer

phn at icke-reklam.ipsec.nu phn at icke-reklam.ipsec.nu
Wed Jul 28 22:51:10 UTC 2004


Steve Friedl <steve at unixwiz.net> wrote:
> On Wed, Jul 28, 2004 at 10:23:24PM +0000, phn at icke-reklam.ipsec.nu wrote:
>> Max Nokhrin <mno11 at lycos.com> wrote:
>> > Thanks,
>> 
>> > For now, I think it will be OK if I have only 1 DNS server. The system 
>> > is only running one domain, so if it fails, not too much of a deal. But 
>> > thank you for the recommendations.
>> 
>> You are wrong. There is a huge difference in "some nameservers cannot
>> be reached" and "no nameservers can be reached".

> It's not *always* a huge difference. If the nameserver describes resources
> that go down when the nameserver does (say, at the end of a T1 line),
> then in practice there is not much difference between "I can't find
> www.example.com" and "I can't reach www.example.com's IP address".

If the MX for a domain is known but the mailserver ( target of MX) is
unreachable mail will be stored and transmitted later. If dns don't work at 
all the mail will bounce at the sending server.

The Internet world consist of *significantly* more then http.



-- 
Peter Håkanson         
        IPSec  Sverige      ( At Gothenburg Riverside )
           Sorry about my e-mail address, but i'm trying to keep spam out,
	   remove "icke-reklam" if you feel for mailing me. Thanx.


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