Re: historical Bogon lists

[Mel Beckman <mel () beckman org>]

My understanding is that the calendar, which in this case showed a dozen or so copies, lists only crawled instances 
that had changed since The previous crawl. Well it certainly true that time elapses between each crawl, so it's 
possible that some changes could be missed, my understanding is that the Internet the scroll frequently enough that 
changes would be detected at least every month or so.

I think it's possible that the bogin list just doesn't change that frequently.

-mel via cell

> On Dec 15, 2018, at 1:30 AM, Lars Prehn <lprehn () inet tu-berlin de> wrote:
>
> Hi Mel,
>
> I already checked Archive.org - it holds two previous copies.
>
> > > lets you download each version of the list that archive.org noticed changed
>
> According to Archive.org's own Note this seems to be inaccurate:
> This calendar view maps the number of times https://www.cidr-report.org/bogons/freespace-dec.txt was crawled by the 
> Wayback Machine, not how many times the site was actually updated.
>
> , or am I missing something?
>
> Best regards,
> Lars
>
> > Am 15.12.18 um 09:47 schrieb Mel Beckman:
> > Lars,
> >
> > Archive.org has snapshots going back several year. Just feed in the URL you posted, ad you’ll get a history that 
> > lets you download each version of the list that archive.org noticed changed. In my experience, that is pretty 
> > comprehensive.
> >
> >  -mel beckman
> >
> > > On Dec 15, 2018, at 12:31 AM, Lars Prehn <lprehn () inet tu-berlin de> wrote:
> > >
> > > Hi everyone,
> > >
> > > In order to sanitize historical BGP data I would like to use historical Bogon lists. The CIDR report generates 
> > > those lists on a daily basis (e.g. https://www.cidr-report.org/bogons/freespace-dec.txt for prefixes) but, as far 
> > > as I know, it does not keep a history of those files - it only holds the most up-to-date file. Does anybody know of 
> > > a repository that contains such bogon lists for historical data, or, did anybody continiously fecthed and saved 
> > > CIDR report's bogon lists?
> > >
> > > Best regards,
> > >
> > > Lars