Use a VPN maybe? Would that actually be able to hold a connection over
the satallite latencies?
James Pulver
CLASSE Computer Group
Cornell University
On 01/22/2016 03:21 PM, Charles F Sullivan wrote:
DNS Acceleration = Ignore TTL
Brilliant concept!
*From:*[email protected]
<mailto:[email protected]>
[mailto:[email protected]
<mailto:[email protected]>] *On Behalf Of *Damien Solodow
*Sent:* Friday, January 22, 2016 1:44 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* RE: [NTSysADM] HughesNet and AWS
Yeah, I’d thought (and hoped) it was their DNS server doing it, but when
even ‘nslookup saasapp.com <http://saasapp.com> 8.8.8.8’ came back wrong
(and different from the results on my PC) I knew something was rotten. J
DAMIEN SOLODOW
Senior Systems Engineer
317.447.6033 (office)
317.447.6014 (fax)
HARRISON COLLEGE
*From:*[email protected]
<mailto:[email protected]>
[mailto:[email protected]] *On Behalf Of *Richard Stovall
*Sent:* Friday, January 22, 2016 1:40 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [NTSysADM] HughesNet and AWS
That's friggin awesome, but it doesn't hurt. :-)
On Fri, Jan 22, 2016 at 1:33 PM, Michael B. Smith <[email protected]
<mailto:[email protected]>> wrote:
Both Comcast and CenturyLink have similar “features” if you use
their DNS servers. But they don’t override you if you choose another
DNS server…
*From:*[email protected]
<mailto:[email protected]>
[mailto:[email protected]
<mailto:[email protected]>] *On Behalf Of *Richard Stovall
*Sent:* Friday, January 22, 2016 12:48 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [NTSysADM] HughesNet and AWS
That is so friggin' awesome it hurts.
On Fri, Jan 22, 2016 at 12:19 PM, Damien Solodow
<[email protected] <mailto:[email protected]>>
wrote:
Having a fun issue, and figured I’d see if anyone else has run into
something like it and has a solution. J
One of our SaaS apps is hosted on AWS, and AWS has the lovely habit
of using very short DNS TTLs and changing IPs frequently. Normally
not that big a deal.
However, it looks like a satellite provider used by a number of our
users (HughesNet) has a wonderful little “feature” called DNS
Acceleration.
This looks to be a local DNS caching server (which ignores the
provided TTL) that runs on their modem. This means that the user
almost always gets outdated information from DNS for this SaaS app,
which prevents them from accessing it.
There doesn’t appear to be a way in the modem UI to turn off this
“feature”, and it looks to intercept **all** outbound DNS traffic,
so even if I set the client or their router to use a different DNS
server it still gets intercepted.
Anyone run into this or have a useful contact at HughesNet to sort
this out?
DAMIEN SOLODOW
Senior Systems Engineer
317.447.6033 <tel:317.447.6033> (office)
317.447.6014 <tel:317.447.6014> (fax)
HARRISON COLLEGE
500 North Meridian St
Suite 500
Indianapolis, IN 46204-1213
www.harrison.edu <http://www.harrison.edu/>
