Chris L. Morrow [EMAIL PROTECTED] writes:
that sets a lower-bar on TTL in the nscd cache -
(from the manpage for nscd.con)
positive-time-to-live cachename value
Sets the time-to-live for positive entries (successful
queries) in the specified cache. value is in
On Tue, 14 Aug 2007, [iso-8859-1] Bjørn Mork wrote:
Chris L. Morrow [EMAIL PROTECTED] writes:
This is still a client issue as, hopefully, the cache-resolvers don't
funnel their business through nscd save when applications on them need
lookups... (things like
* 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
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
On Mon, 13 Aug 2007, Rodney Joffe wrote:
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
On Fri, 10 Aug 2007, Max Inux wrote:
Of course the CDN wouldn't know or care, it would however possibly
lead to that user experiencing negative performance or availability
outside the realm of the CDN's control. I know where we are we move
things via dns atleast 2xTTL early, usually more,
How do you engineer around enterprise and ISP recursors that
don't honor TTL, instead caching DNS records for a week or more?
Ask their users to tell them to stop being muppets
brandon
On Aug 9, 2007, at 10:55 PM, Paul Reubens wrote:
How do you engineer around enterprise and ISP recursors that don't
honor TTL, instead caching DNS records for a week or more?
In my little bit of research and experience over the last 10 years
in this field, I have often pursued this
Rodney Joffe wrote:
On Aug 9, 2007, at 10:55 PM, Paul Reubens wrote:
How do you engineer around enterprise and ISP recursors that don't
honor TTL, instead caching DNS records for a week or more?
In my little bit of research and experience over the last 10 years
in this field, I have
On Aug 10, 2007, at 12:46 PM, John Levine wrote:
Very interesting. We've all heard and probably all passed along
that little
bromide at one time or another. Is it possible that at one time
it was true
(even possibly for AOL) but with the rise of CDNs, policies of not
honoring
TTL's
On Aug 10, 2007, at 1:55 AM, Paul Reubens wrote:
How do you engineer around enterprise and ISP recursors that don't
honor TTL, instead caching DNS records for a week or more?
A friend of mine was working for a place that performed some service
on data (not important what, you send them
On Aug 10, 2007, at 9:13 AM, Max Inux wrote:
Working for a content delivery network I can tell you that there
are many nameservers ignoring TTL that affect many users (AOL
being the largest american one). Coincidentally AOL users aren't
nearly so affected by that as they are that
On 8/10/2007 at 11:55 AM, Patrick W. Gilmore [EMAIL PROTECTED]
wrote:
On Aug 10, 2007, at 12:46 PM, John Levine wrote:
Very interesting. We've all heard and probably all passed along
that little
bromide at one time or another. Is it possible that at one time
it was true
(even
On Aug 10, 2007, at 9:13 AM, Max Inux wrote:
Working for a content delivery network I can tell you that there
are many nameservers ignoring TTL that affect many users (AOL
being the largest american one). Coincidentally AOL users aren't
So, I'd also ask this, do you know it's the
How do you engineer around enterprise and ISP recursors that don't honor
TTL, instead caching DNS records for a week or more?
On 8/7/07, Patrick W.Gilmore [EMAIL PROTECTED] wrote:
On Aug 7, 2007, at 10:05 AM, Michal Krsek wrote:
5) User redirection
- You have to implement a scalable
; nanog@merit.edu
Sent: Monday, August 06, 2007 23:10
Subject: Content Delivery Networks
Can anyone give a breakdown of the different kinds of content deliver
networks? For example, we have Akamai, which appears to be a pure Layer 3
network that is tailored to pushing relatively small files
On Aug 7, 2007, at 3:59 AM, Michal Krsek wrote:
5) User redirection
- You have to implement a scalable mechanisms that redirects users
to the closes POP. You can use application redirect (fast, but not
so much scalable), DNS redirect (scalable, but not so fast) or
anycasting (this needs
Hi Patrick,
5) User redirection
- You have to implement a scalable mechanisms that redirects users to
the closes POP. You can use application redirect (fast, but not so much
scalable), DNS redirect (scalable, but not so fast) or anycasting (this
needs cooperation with ISP).
What is
On Aug 7, 2007, at 10:05 AM, Michal Krsek wrote:
5) User redirection
- You have to implement a scalable mechanisms that redirects
users to the closes POP. You can use application redirect (fast,
but not so much scalable), DNS redirect (scalable, but not so
fast) or anycasting (this
5) User redirection
- You have to implement a scalable mechanisms that redirects users to
the closes POP. You can use application redirect (fast, but not so
much scalable), DNS redirect (scalable, but not so fast) or
anycasting (this needs cooperation with ISP).
What is slow about
, that focuses on bigger
files like video streams.
Any insights out there? And what are the major challenges in making scalable
content delivery networks?
Roderick S. Beck
Director of EMEA Sales
Hibernia Atlantic
1, Passage du Chantier, 75012 Paris
http://www.hiberniaatlantic.com
Wireless: 1-212-444
that when they
acquired Exodus, who bought way DI back when), LLNW, and att all
have their own backbones.
Any insights out there? And what are the major challenges in making
scalable content delivery networks?
Myriad. Some are hard to overcome, some are very hard. Keyword here
being
, the bad 'ol days... ;-)
scott
--- [EMAIL PROTECTED] wrote:
From: Patrick W. Gilmore [EMAIL PROTECTED]
To: nanog@merit.edu
Cc: Patrick W. Gilmore [EMAIL PROTECTED]
Subject: Re: Content Delivery Networks
Date: Mon, 6 Aug 2007 20:08:06 -0400
On Aug 6, 2007, at 5:10 PM, Rod Beck wrote
Hello,
I am wondering if somebody can point me to the links where I can found
information about Content Delivery Network Solutions used in the
market today. I need to know about the technology and how the
solution/company (such as Akamai) caters its customers. Do they mirror
the content across
On Mon, 8 Nov 2004, M. Huda wrote:
: market today. I need to know about the technology and how the
: solution/company (such as Akamai) caters its customers. Do they mirror
: the content across their server's network? If this is the case then
: how a request is directed to the closest and
I need to know about the technology and how the solution/company (such as
Akamai) caters its customers. Do they mirror the content across their
server's network? If this is the case then how a request is directed to
the closest and lightly loaded server on Internet? There are other
hardware
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