Re: easy to remember addresses and /etc/hosts and DNS

Alexandre Petrescu <alexandre.petrescu@gmail.com> Fri, 26 April 2019 09:54 UTC

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Subject: Re: easy to remember addresses and /etc/hosts and DNS
To: Mark Smith <markzzzsmith@gmail.com>
Cc: Brian E Carpenter <brian.e.carpenter@gmail.com>, Philip Homburg <pch-ipv6-ietf-6@u-1.phicoh.com>, 6man WG <ipv6@ietf.org>
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Date: Fri, 26 Apr 2019 11:54:43 +0200
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Le 26/04/2019 à 11:46, Mark Smith a écrit :
> On Fri, 26 Apr 2019 at 19:28, Alexandre Petrescu
> <alexandre.petrescu@gmail.com> wrote:
>>
>>
>>
>> Le 26/04/2019 à 06:31, Brian E Carpenter a écrit :
>>>
>>>
>>> Regards Brian Carpenter
>>>
>>> On 25-Apr-19 21:48, Philip Homburg wrote: ...
>>>> The main example you gave is somebody typing IPv6 literals while
>>>> sitting in a car.
>>>
>>> Indeed, we said from the very beginning (I mean 1994) that users
>>> should never be required to type in IPv6 addresses.
>>>
>>> Is this so hard to avoid?
>>
>> It may be easy to avoid typing IPv6 addresse when DNS was available.
>>
>> But think about three cars in a covoy; the convoy is disconnected from
>> the IPv6 Internet, yet fully connected on IPv6 between all computers in
>> the convoy.  Which of the cars should host the DNS server?
>>
> 
> All of them.

Mark,

Thank you very much for the suggestion.  I will consider it.

I would like to ask you: is multicast DNS (mDNS) working on a single 
subnet only?  Or does it work across subnets?

(because the numerous computers in these three cars are not all on a 
single subnet; they are all interconnected with IP, but there are 
multiple subnets with routers in between).

Alex

> 
> http://www.multicastdns.org/
> 
> Multicast DNS
> https://www.ietf.org/rfc/rfc6762.txt
> 
> There's also a good book on it:
> 
> ""Zero Configuration Networking: The Definitive Guide
> https://www.amazon.com/gp/product/0596101007
> 
> 
> A number of implementations:
> 
> https://www.avahi.org/ - Linux
> 
> https://developer.apple.com/bonjour/ - Apple, Windows
> 
> And if you want to know what inspired it,
> 
> "Requirements for a Protocol to Replace the AppleTalk Name Binding
> Protocol (NBP)"
> https://tools.ietf.org/html/rfc6760
> 
> This is why you need to explain your problem, not just what you think
> is the solution. You'll get much quicker answers.
> 
> <snip>
>