[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [idn] impacted systems investigation
- To: idn@ops.ietf.org
- Subject: Re: [idn] impacted systems investigation
- From: "D. J. Bernstein" <djb@cr.yp.to>
- Date: 11 Mar 2001 23:37:16 -0000
- Delivery-date: Sun, 11 Mar 2001 15:38:36 -0800
- Envelope-to: idn-data@psg.com
- Mail-Followup-To: idn@ops.ietf.org
Nobody has presented any evidence of DNS caches having trouble with
UTF-8. Nobody has presented any evidence of DNS servers having trouble
with UTF-8. The discussion of server upgrades is divorced from reality.
There are some widely distributed DNS _client_ libraries that, in
violation of RFC 2181, reject DNS names containing unusual characters.
In particular, the version 8 libresolv gethostbyname() implementation
does this; look at gethostans(), maybe_ok(), res_hnok(), and res_dnok().
Sysadmins can fix it by putting no-check-names into /etc/resolv.conf.
---Dan