Re: [idn] [q] cname, EDNS0

["Donald E. Eastlake 3rd" <dee3@torque.pothole.com>]

DNAME is explained in RFC 2672: Non-Terminal DNS Name Redirection.

EDNS0, explained in RFC 2671: Extension Mechanisms for DNS (EDNS0).
It permits new label types to be defined, which could be longer
than 63 bytes.  There is no mechanism for allowing current label
types to be longer than the currently defined maximum.

Donald

From:  GIM Gyeongseog-KIM Kyongsok <gimgs-idn@asadal.cs.pusan.ac.kr>
Date:  Wed, 14 Jun 2000 00:25:30 +0900 (KST)
Message-Id:  <200006131525.AAA22027@asadal.cs.pusan.ac.kr>
To:  idn@ops.ietf.org

> dname?, DNSEXT ?
>
>  i have two questions:
>
>1.  i heard about dname but do not know what dname can do.
>  - what's the difference between cname (i know cname) and dname.
>  - also any reference about dname?
>
>2.  i seem to have heard that the max. label length (63) can be
>increased with EDNS0 (extended DNS?).
>  - any reference about this feature?
>  - if this feature can be explained briefly, would anybody
>give an example, please?
>
>thanks in advance.
>
>
>
>±è °æ¼®, ºÎ»ê´ë Àü»ê°ú, gimgs@hangeul.cs.pusan.ac.kr
>
>
>
>±è °æ¼®, ºÎ»ê´ë Àü»ê°ú, gimgs@hangeul.cs.pusan.ac.kr
>
>