A followup, Comcast seems to have<div>no interest in faster network offerings.</div><div>I was told in December that it would</div><div>be "rolling out" faster services.</div><div><br></div><div>What I see instead is "business services,"</div>
<div>available only in some areas, that are </div><div>faster, on paper, and cost an arm and a</div><div>leg.</div><div><br></div><div>Of course "business services" is another</div><div>way of saying "much more expensive."</div>
<div>So of course why offer residential speed</div><div>equivalents, and let everyone see that they</div><div>are about as good.</div><div><br></div><div> -- Bob</div><div><br><br><div class="gmail_quote">On Tue, Aug 31, 2010 at 12:57 PM, Bob Kline <span dir="ltr"><<a href="mailto:bob.kline@gmail.com">bob.kline@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Just curious, why is something like<div>this better than, say, Google's DNS</div><div>service? I've used that for a while now,</div>
<div>and it's quite reliable and fast.</div><div><br></div><div>i.e., I presume you pay for the "business"</div>
<div>service, but what do you actually get for it?</div><div>Hand holding, if that's effective, but maybe</div><div>you shouldn't need that if the service is any</div><div>good.</div><div><br></div><div> -- Bob</div>
<div><br></div><div><br><div class="gmail_quote"><div class="im">On Tue, Aug 31, 2010 at 10:44 AM, Michael Mol <span dir="ltr"><<a href="mailto:mikemol@gmail.com" target="_blank">mikemol@gmail.com</a>></span> wrote:<br>
</div><div><div></div><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Tue, Aug 31, 2010 at 2:32 PM, Bill Littlejohn <<a href="mailto:billl@mtd-inc.com" target="_blank">billl@mtd-inc.com</a>> wrote:<br>
> We use Charter Business as our primary ISP, and an internal forwarding<br>
> DNS server that forwards to DynDNS for external domains.<br>
> A couple times a week we're having failure of DNS for about 10 minutes<br>
> at a time, so I wrote a script to check the Charter gateway, internal<br>
> DNS, DynDNS, OpenDNS, and Charter DNS.<br>
> During the last failure (ending 10:02am today) I ran the script and<br>
> all external DNS queries timed out except for Charter's DNS.<br>
> That would seem to indicate that Charter is somehow dropping or<br>
> interfering with those external DNS queries.<br>
> Anyone know how I might verify that?<br>
><br>
> I called Charter support... they offered to send someone to test our<br>
> modem. <sigh><br>
<br>
A note: DNS uses UDP, which (unlike TCP) does not guarantee delivery.<br>
It's quite possible that they're dealing with network congestion,<br>
causing dropped packets. For TCP, this just results in lowered<br>
throughput until your local machines re-send their packets, but UDP<br>
doesn't have a fallback like that.<br>
<br>
Use a VPN to tunnel your DNS queries through? I'd suggest configuring<br>
the VPN tunnel to use TCP as a carrier (OpenVPN, for example, supports<br>
both TCP and UDP as carriers), so your UDP packets are guaranteed to<br>
get to the other end of the VPN link, at least.<br>
<br>
<br>
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:wq<br>
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