[Freeipa-users] Unique world wide UIDS

[Steven Jones]

Hi,

Well if you understand Peak Oil and that the "green revolution" was actually truning fossil fuel into food ie we eat oil....only having 2billion UIDs wont be a problem.

:/

regards

Steven Jones

Technical Specialist - Linux RHCE

Victoria University, Wellington, NZ

0064 4 463 6272

________________________________________
From: freeipa-users-bounces at redhat.com [freeipa-users-bounces at redhat.com] on behalf of Adam Young [ayoung at redhat.com]
Sent: Friday, 28 October 2011 1:52 a.m.
To: freeipa-users at redhat.com
Subject: Re: [Freeipa-users] Unique world wide UIDS

On 10/26/2011 09:35 PM, Adam Young wrote:
> On 10/26/2011 08:49 PM, Steven Jones wrote:
>> Hi,
>>
>> Readng the docs on the 32bit UIDs it says it makes an attempt to give
>> out a unique range....would it be possible / practical if RH (would
>> want to) ran some sort of database or registration function to try
>> and insure that?
>>
>>
>> regards
>>
>> Steven Jones
>>
>> Technical Specialist - Linux RHCE
>>
>> Victoria University, Wellington, NZ
>>
>> 0064 4 463 6272
>>
>> _______________________________________________
>> Freeipa-users mailing list
>> Freeipa-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/freeipa-users
> No.  It would not be.  Fragmentation of the 32 Bit space means that
> you are going to have clashes.  Just look at IPv4 addresses and you
> can see an analogue.  32bits  really means 32 bits, as you have to
> deal with sometimes things being stored in signed values (Java for
> instance)  so you have 2^31  or 2,147,483,648.  Which is not quite a
> quarter of the worlds population.

Wrote this too late at night.  Should read "less than half of the
world's population"   but the argument stays the same.

> Now, assuming that any organization is going to be smaller than that,
> you have to figure out how much to give them...they are going to make
> it a financial decision,  so the US governement buys up  enough to be
> future proof, lets say 1 Billion,  leaveing a little over 1 Billion
> for the Rest of the world...then China comes in.  Then India.  You get
> the idea.
>
>
>
>
>
>
>
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> Freeipa-users mailing list
> Freeipa-users at redhat.com
> https://www.redhat.com/mailman/listinfo/freeipa-users

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