> The answer so far seems to be to query *.TLD, nab all the records,
> and then compare them all the results you get back from querying the
> domain. If there is anything that doesn't match, you are in the
> clear. (Modulo internal networks and localhost and all those fun
> tricks of course-
At 10:24 AM -0400 9/24/03, John A. Martin wrote:
>>>>> "Kee" == Kee Hinckley
"RE: Detecting a non-existent domain"
Tue, 23 Sep 2003 20:16:04 -0400
Kee> At 3:15 PM -0700 9/23/03, David Schwartz wrote:
>> How would you do this before? Does a
> At 3:15 PM -0700 9/23/03, David Schwartz wrote:
> > How would you do this before? Does an A record for a hostname
> >mean that a
> >host with that name exists? If so, then all *.com 'hosts' now 'exist'. If
> >not, what did you mean by exist before?
> Okay, let's be very specific. I need t
At 3:15 PM -0700 9/23/03, David Schwartz wrote:
How would you do this before? Does an A record for a hostname
mean that a
host with that name exists? If so, then all *.com 'hosts' now 'exist'. If
not, what did you mean by exist before?
Okay, let's be very specific. I need to know if a given name
Lee Hinckley wrote:
> At 2:46 PM -0700 9/23/03, David Schwartz wrote:
> > He asked for the "optimal way" "to see if a given host truly
> >exists" and
> >you told him how to confirm or deny the "existance of a domain". He asked
> >about hosts, you answered about domains.
> In fairness I was
At 2:46 PM -0700 9/23/03, David Schwartz wrote:
He asked for the "optimal way" "to see if a given host truly
exists" and
you told him how to confirm or deny the "existance of a domain". He asked
about hosts, you answered about domains.
In fairness I was ambiguous. Although Verisign ought to be
On Tuesday, Sep 23, 2003, at 18:15 Canada/Eastern, David Schwartz wrote:
As for 'fsck.de', a good argument can be made that this is not really
a
legal domain. It's a host. Checking for an SOA is a good way to tell
if a
domain is valid, depending upon what you mean by 'domain' and 'valid'.
Are
On Tue, Sep 23, 2003 at 03:15:06PM -0700, David Schwartz wrote:
> As for 'fsck.de', a good argument can be made that this is not really a
> legal domain.
It's a perfectly valid domain registered with DE-NIC. DE-NIC offers two
types of domains: delegated and so-called "MX-only" domains, wher
> Getting practical for a minute. What is the optimal way now to see
> if a given host truly exists?
You first have to define what you mean by 'exists'. I have a machine here
that I call 'stinky'. It's not on the Interent though. Does the 'host'
'stinky' exist?
> Assume that I can't co
On Tue, Sep 23, 2003 at 04:24:32PM -0500, Dominic J. Eidson wrote:
> Look for a SOA record for the domain - this should be the proper way to
> check for the existance of a domain,
No, because there doesn't _have_ to be a SOA RR for a 2nd level
domain. For example, in the .de TLD, there are (many)
> On Tue, 23 Sep 2003, Kee Hinckley wrote:
> > Getting practical for a minute. What is the optimal way now to see
> > if a given host truly exists? Assume that I can't control the DNS
> Look for a SOA record for the domain - this should be the proper way to
> check for the existance of a doma
Kee Hinckley wrote:
Getting practical for a minute. What is the optimal way now to see if a
given host truly exists? Assume that I can't control the DNS server--I
need to have this code run in any (*ix) environment. Assume also that I
don't want to run around specialcasing specific IP address
On Tue, 23 Sep 2003, Kee Hinckley wrote:
> Getting practical for a minute. What is the optimal way now to see
> if a given host truly exists? Assume that I can't control the DNS
Look for a SOA record for the domain - this should be the proper way to
check for the existance of a domain, instead
Getting practical for a minute. What is the optimal way now to see
if a given host truly exists? Assume that I can't control the DNS
server--I need to have this code run in any (*ix) environment.
Assume also that I don't want to run around specialcasing specific IP
addresses or TLDs--this nee
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