Re[2]: mirc32 6.0x crash when resolving dns.

Dear Peter Pentchev,

A way to delegate reverse resolution for network less than /24 is defined in RFC 2317. And it's different from one used.

But you're right: the problem is probably not in unresolvable PTR. The problem is in unresolvable CNAME instead of PTR, so PTR is never found at all. And yes: it may affect different applications where gethostbyname() is used. I will test gethostbyname() behavior for this case in Windows and Unix and report back.

--Thursday, May 29, 2003, 11:26:04 AM, you wrote to 3APA3A@SECURITY.NNOV.RU:

PP> On Wed, May 28, 2003 at 02:45:25PM +0400, 3APA3A wrote:
>> Dear Davide Del Vecchio,

PP> This is not necessarily a flawed record; I believe it might be as simple
PP> as the ultimate in classless reverse DNS delegation.  Note that the
PP> 16.193.210.in-addr.arpa zone is delegated to ns[12].qala.com.sg, while
PP> this specific "alias" subdelegates the reverse DNS records for
PP> 210.193.16.25 to dns[12].lga.net.sg.

PP> G'luck,
PP> Peter

-- 
~/ZARAZA
Èáî ôàêòû åñòü ôàêòû, è èçëîæåíû îíè ëèøü äëÿ òîãî, ÷òîáû èõ ïîíÿëè è â íèõ ïîâåðèëè. (Òâåí)