dns and software, was Re: Reliable Cloud host ?

William Herrin bill at herrin.us
Mon Feb 27 18:59:28 CST 2012


On Mon, Feb 27, 2012 at 7:07 PM, Owen DeLong <owen at delong.com> wrote:
> On Feb 27, 2012, at 3:50 PM, William Herrin wrote:
>> Meh. What should be fixed is that connect() should receive a name
>> instead of an IP address. Having an application deal directly with the
>> IP address should be the exception rather than the rule. Then, deal
>> with the TTL issues once in the standard libraries instead of
>> repeatedly in every single application.
>>
>> In theory, that'd even make the app code protocol agnostic so that it
>> doesn't have to be rewritten yet again for IPv12.
>
> While I agree with the principle of what you are trying to say, I would argue
> that it should be dealt with in getnameinfo() / getaddrinfo() and not connect().
>
> It is perfectly reasonable for connect() to deal with an address structure.

Yes, well, that's why we're still using a layer 4 protocol (TCP) that
can't dynamically rebind to the protocol level below (IP). God help us
when folks start overriding the ethernet MAC address to force machines
to keep the same IPv6 address that's been hardcoded somewhere or is
otherwise too much trouble to change.

Regards,
Bill Herrin



-- 
William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004



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