14 May
1998
14 May
'98
4:26 p.m.
From owner-dns-wg@ripe.net Thu May 14 15:54:09 1998 From: Hans Niklasson <hasse@swip.net>
Hans,
Illegal characters:
Only a-z , 0-9 and - is valid to use. All other characters is illegal and can cause the resolving to fail.
I think it is worthwile at least mentioning that this restriction applies to _hostnames_ (e.g. right hand side of NS or MX records). This does not necessarily apply elsewhere. The third document you give as additional reading (draft-ietf-dnsind-classless-inaddr-04.txt) does use a character that is not in the set above (slash). This topic is very well clarified in RFC 2181 chapter 11. (Name syntax). Best regards, Janos