[Dnsmasq-discuss] Fwd: Errors in address FQDN name combinations with hyphens

[Petr Menšík]

Those hostnames are invalid. No host can start or end with -. Double or
triple does not matter.

Host like 7cjyxsb--.micpn.com should be refused. But I admit it might be
useful to be able to block such invalid names from going forward. For
example with --local=/7cjyxsb--.micpn.com/ might be able to accept even
invalid names and report them with just a warning.

But defining an address served by dnsmasq should be still forbidden on
invalid hostnames.

On 5/2/22 16:11, mito mito wrote:
> Hi,
>
> I finally managed to understand the problem. 
>
> What had happened is that I had updated dnsmasq from the official
> debian repository and this time it was compiled with the IDN2 option
> (which makes it compliant with domain name rules) 
>
> I have downloaded the latest version from source and commented out the
> IDN2 related lines and no longer have any problems.
>
> I will refrain from using IDN2 until the entire internet complies with
> these rules. 
>
> Greetings
>
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-- 
Petr Menšík
Software Engineer
Red Hat, http://www.redhat.com/
email: pemensik at redhat.com
PGP: DFCF908DB7C87E8E529925BC4931CA5B6C9FC5CB
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