Search:  

 
 
   All ForumsHot TopicsGallery






how-to block ads


 
Forums » Comcast DNS Troubles » OPENDNS
Search Topic:
Share Topic:
RSS topic:
toggle:
flat / full
normal / watch
Post a:
Post a:
Comcast DNS Servers »
« dns  
AuthorAll Replies


Safemaster
Premium
join:2004-01-18
Loxahatchee, FL
reply to rdata
Re: OPENDNS

Reliable and fast.


fcisler
Premium
join:2004-06-14
Riverhead, NY
Except they (opendns) also redirect invalid DNS lookups.

Try it. I won't use ANY DNS which returns ANYTHING but
"NOT VALID" on a lookup of afiaf8wq8r23.com (or any invalid domain). Opendns will return 208.69.32.130.

Nope...sorry...


tdwr

@faa.gov

what you been smoking?

Results for psychobabbleafiaf8wq8r23.com
United States
New York, New York, USA Palo Alto, California, USA
DID NOT RESOLVE DID NOT RESOLVE
Seattle, Washington, USA Washington, DC, USA
DID NOT RESOLVE DID NOT RESOLVE

Europe
London, England, UK
DID NOT RESOLVE

None of our locations could resolve this domain.

Try "Refresh the cache" first. That will fix problem #1 below.
Four possibilities:

Domain was recently moved and the new address has not propagated.
Domain does not exist in DNS.
Domain's nameservers have problems, temporary or otherwise.
There is a problem with a record on OpenDNS servers.

tyscoj

join:2002-06-17
Fort Pierce, FL

reply to fcisler
said by fcisler See Profile :

Except they (opendns) also redirect invalid DNS lookups.

Try it. I won't use ANY DNS which returns ANYTHING but
"NOT VALID" on a lookup of afiaf8wq8r23.com (or any invalid domain). Opendns will return 208.69.32.130.

Nope...sorry...
This is a setting that you have enabled for your network. It can be turned off via the OpenDNS site...along with a few other options.

quatrix
Premium
join:2005-02-11
Davie, FL


1 edit
reply to fcisler
EDIT: tyscoj beat me to it.

Have you tried this?

»www.opendns.com/faq/#change_prefs

How do I turn off phishing protection or typo correction?

Create a free account to manage your network preferences.


fcisler
Premium
join:2004-06-14
Riverhead, NY
Nope....i prefer not to rely on such a hack as this (and it IS a hack, as it's got to check my account to get my IP, and then put my IP on i guess a "safe list") blah blah blah....

I just run my own DNS server and cache from 4.2.2.1.

koolkid1563
Premium,MVM
join:2005-11-06
Powell, WY
clubs:
·Bresnan Online

said by fcisler See Profile :

and it IS a hack, as it's got to check my account to get my IP
So, what you are saying is that EVERY website (including this one) hacks into your account to grab your IP...not true


fcisler
Premium
join:2004-06-14
Riverhead, NY


1 edit
Wow...way to completely misread my post. No, I don't think or assume that. I also didn't say "HACKS", as in the sense I'm going to assume that you mean - I said hack. Here's a definition:
1. Originally, a quick job that produces what is needed, but not well.
Perfect definition in this case.

It IS a hack as there is NO, read it, NO, means for authentication via DNS. In otherwords - when I request a result from OpenDNS - it is identical to YOUR request, with the exception of our IP address'.

Now...it IS a hack that they will then have THEIR DNS SERVER check a database to find MY IP to find that I OPTED OUT of their bogus domain forwarding.

You are completely off in your assumption - I don't see OpenDNS as having ANY OTHER WAY to "fix" the results than those steps posted. If you have any other inside info - please post it.....but I don't ever recall seeing ANY OTHER DNS do that, unless specifically designed to.


davidu

join:2006-12-28
San Francisco, CA

said by fcisler See Profile :

It IS a hack as there is NO, read it, NO, means for authentication via DNS. In otherwords - when I request a result from OpenDNS - it is identical to YOUR request, with the exception of our IP address'.

Now...it IS a hack that they will then have THEIR DNS SERVER check a database to find MY IP to find that I OPTED OUT of their bogus domain forwarding.

You are completely off in your assumption - I don't see OpenDNS as having ANY OTHER WAY to "fix" the results than those steps posted. If you have any other inside info - please post it.....but I don't ever recall seeing ANY OTHER DNS do that, unless specifically designed to.
There's more than just your IP address. There's the query_id mux'd in there along with some other request-specific bits that make it hard to forge a reply from us. That said, this is NO different from the way any other DNS server works. UDP is stateless and that's the name of the game.

That said, we do base preferences on your src_addr. It works very very well. It's not at all a hack just because it's new to you. It was far from a quick job and it does the job well. So well in fact that others are trying to figure out how to emulate it, including BIND.

-david
Forums » Comcast DNS TroublesComcast DNS Servers »
« dns  


Sunday, 29-Nov 18:55:07 Terms of Use | Privacy Policy | Hosting by www.nac.net - DSL,Hosting & Co-lo | feedback | contact
over 10 years online! © 1999-2009 dslreports.com.
page compression OFF
Most commented news this week
· [124] Time Warner Cable Fires Broadside At Broadcasters
· [112] New AT&T Ad Campaign Hits Back At Verizon
· [96] Apple Joins AT&T Verizon Snark Fest
· [87] New Bill Takes Aim At Higher Verizon ETFs
· [80] TiVo Sees Record Customer Losses
· [80] Weekend Open Thread
· [79] Verizon CEO: Hulu Will Be Dead Soon
· [69] In-Flight Internet Headed For Bumpy Landing?
· [63] Thanksgiving Open Thread
· [41] ICANN Slams DNS Redirection
Most people now reading
· Grey Cup on the Web? [Canadian Chat]
· Is Easynews down? [Filesharing Software]
· Are GPS's better today? [General Questions]
· Windows 7 boot manager editing questions [Microsoft Help]
· [Newsgroups] Newzleech down? [Filesharing Software]
· Help with an old Photograph [Avatar/Graphics Help]
· post your uber speeds [TekSavvy]
· Enhancement Shaman + Heirlooms, what to pick? [World of Warcraft]
· What is the spell hit cap for a lvl 80 full arcane spec mage [World of Warcraft]
· [How to] Install Asterisk on an Asus WL-520GU router [VOIP Tech Chat]