At 12:28 -0500 3/27/2002, Jeffrey Wheat wrote:
>BIND 9 does not restrict the character set of domain names - it is
>fully 8-bit clean in accordance with RFC2181 section 11.
Yikes. If we take that (including the referenced material) at face value,
BIND 9 will serve a name containing an ASCII NUL character (0x00).
I have a feeling that such names aren't a good idea for our purposes.
The section does continue on to say that clients of the DNS can impose
naming restrictions appropriate to their needs. As the mail RFCs attempt
to (with little success regarding _).
Apple created a bit of a firestorm a few years ago with Mac TCP 2.0.6,
whose resolver refused to look up names containing "_". Several machine
names did get changed as a result. [Mac TCP 2.0.6 lasted from the early
1990s until Open Transport replaced it in the mid 1990s.]
--John
--
John Baxter jwblist@??? Port Ludlow, WA, USA
