Re: [cobalt-users] Newbie Questions -- help!

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

At 12:49 PM 3/15/00 -0800, you wrote:

> > Too much DNS traffic is a bad thing, and can get a lot
> > of aggressive admins to block your site completely.
>
> Really?

Only if they saw a lot of DNS traffic.

>  I thought DNS traffic is negligible?

Here's what the book ("DNS and Bind" <smile>) says on the issue (page 35):

"Deciding on a time to live for your data is essentially deciding on a 
trade-off between performance and consistency. A small TTL will help ensure 
that data about your domain is consistent across the network, because 
remote name servers will time out more quickly and be forced to query your 
authoritative name servers more often for new data. On the other hand, this 
will increase the load on your name servers and lengthyen resolution time 
for information in your domain, on the average.

"A large TTL will shorten the average time it takes to resolve information 
in your domain because the data can be cached longer. The drawback is that 
your information will be inconsistent for a longer time if you make changes 
to your data on your name servers."

> Didn't network solutions tun all the root servers off two T1s or something?

Might have a few years ago; I be they don't anymore.

> This is all the fault of Bell and their stupid PPPoE nonsense. I wish they
> handed out static IPs. </rant>

They do it quite intentionally; they don't want you to run servers.  I'd 
bet the AUP even says "no servers".

Jeff

--
Jeff Lasman <jblists@xxxxxxxxxxxxx>