13 Led
2014
13 Led
'14
18:58
Anand Buddhdev wrote:
On 11/01/2014 08:42, daniel.salzman(a)nic.cz wrote:
Hi Daniel,
New releases of DNS software break compatibility with older software all
the time when they add support for new RR types. The DNS master file
format is not a stable interface.
If DNS servers wanted to maximize compatibility with older software when
dumping zone files in master file format, they would dump only the
well-known RR types from RFC 1035 in "presentation format", and any
other RR type in generic \# RFC 3597 encoding :-)
--
Robert Edmonds
edmonds(a)debian.org
Initially, we had just timestamps in zone dumps.
I prefer this, since
it makes smaller dumps and it is faster to process such records.
Afterwards,
we turned it off due to incompatibility with Bind. Because Bind is unable
to load these dumps if you need it.
I opened a bug report for BIND9, and Mark Andrews' response was that
unix timestamps should never have been allowed in the RFC, because it
breaks compatibility with older software. I disagree with him. BIND can
dump zones with human-readable timestamps if it wants to, but it should
*read* both formats, as should any software that claims to be RFC
4034-compliant.