[98550] in North American Network Operators' Group
Re: Content Delivery Networks
daemon@ATHENA.MIT.EDU (Rodney Joffe)
Mon Aug 13 12:54:48 2007
In-Reply-To: <82hcn323bw.fsf@mid.bfk.de>
Cc: NANOG <nanog@merit.edu>
From: Rodney Joffe <rjoffe@centergate.com>
Date: Mon, 13 Aug 2007 09:53:43 -0700
To: Florian Weimer <fweimer@bfk.de>
Errors-To: owner-nanog@merit.edu
On Aug 13, 2007, at 2:25 AM, Florian Weimer wrote:
>
> * Rodney Joffe:
>
>> Do you have any real examples of significant recursive servers doing
>> this?
>
> nscd in GNU libc has issues related to cache expiry. I'm not sure if
> it is general brokenness, or some TTL-related issue. It's use is not
> terribly widespread, and it's a host-specific cache only, but there's
> a certain installation base.
Thanks Florian. So this looks like a code "feature", not stupid =20
behavior by deployers. I'll keep a note when we fingerprint =20
misbehaving systems in the future.
/rlj
>
> --=20
> Florian Weimer <fweimer@bfk.de>
> BFK edv-consulting GmbH http://www.bfk.de/
> Kriegsstra=DFe 100 tel: +49-721-96201-1
> D-76133 Karlsruhe fax: +49-721-96201-99
>
