How do i delegate i.p addresses ??

Jim Reid jim at rfc1035.com
Fri Aug 18 07:13:33 UTC 2000


>>>>> "Steve" == Steve  <steve at stevenet.olafsolutions.com> writes:

    Steve> I also just compiled a new verison of sendmail. I had
    Steve> trouble getting controlled relaying to work correctly.  I
    Steve> decided that not having reverse look up configured... that
    Steve> I would run into trouble with others servers like Sendmail.

Correct. By default modern versions of sendmail only relay outbound
mail if the mail is generated locally. It uses reverse lookups to
decide if the mail was submitted from a local address. So if you've
not got reverse lookups working properly, mail won't work.

    Steve> I got a class C subnet assigned to our network from our
    Steve> provider and then I went to signaturedomains.com to
    Steve> register multiple domains.

    Steve> Do you have to get my ISP to do the delegation or does the
    Steve> registar of my domain do this ???

This has to be done by your ISP. Think about it. Your registrar
doesn't know or care what IP addresses your domain uses. [All they
need to know are the names and addresses of your domain's name
servers. This is not necessarily related to the IP addresses that the
domain uses.] Your registrar probably doesn't own the reverse domain
space for your IP addresses. So they can't delegate that to you. The
registrar probably didn't ask you for details of your reverse IP space
at registration. They wouldn't be able to delegate the reverse zone to
you - assuming they could in the first place! - without that
information. Your ISP gave you the IP addresses. Presumably they gave
you numbers out of a block assigned to them. [ie They didn't just
pluck addresses out of the air.] Your ISP should be in control of the
reverse domain space for that block of IP addresses. This will mean
that they are the people who can delegate the reverse zone to you.



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