Web server IP database thread - (Protection against DNS failure)

giovonni · 11-25-2009, 04:06 PM

Excellent heads-up ~TBird

I printed and also keep a hand written list-log> as well

Harry_CDN · 01-05-2010, 07:10 AM

Ref: If Local ISP Name Servers are Down

I've never used this service but perhaps it may become valuable to some.

Free Fast Public DNS Servers List

http://theos.in/windows-xp/free-fast...s-server-list/

EYES WIDE OPEN · 01-05-2010, 09:46 AM

what are the i.p addresses for these sites?

http://lucianarchy.proboards.com/index.cgi
http://www.911blogger.com/
http://boilingfrogspost.com

also, how do you find an ip address if you hve a mac?

Operator · 01-05-2010, 12:14 PM

Hi,

Although it's always a good idea to be prepared for set-backs the advantage of listing IP addresses is limited. Here's why:

When 'they' start messing with the internet it's not likely they will target the DNS services, it's far too simple and there is a more
sophisticated way to mess up without leaving traces to the root cause.

Then there is a more detailed problem concerning IP's ...
The internet currently uses IPv4 which consists of 4 bytes displayed as 4 numbers with values between 0 .. 255 separated by dots.
The problem with IPv4 is that there are far more addresses needed than combinations available. That's why IPv6 will soon replace
IPv4. IPv6 consists of 16 bytes, resulting in a lot more combinations.

The way it is handled currently is that most websites do NOT have a unique IP address. The way they share their IP with others is
that the IP will lead to the right server and the domain name used resolves the rest.
When websites have an application running in https (encrypted http) they require an unique IP for the encryption certificate.
Also when websites are that big that they run on a dedicated server (or even servers) it's likely that they will have a unique IP.

So that's why in general it may not work when you use the IP directly ...

If you still want to lookup IP addresses you can go here: http://ip-lookup.net/domain.php
Fill in only the part after http://www. till the next /
E.g. in http://www.tbrnews.org/Archives/a3005.htm lookup tbrnews.org
Sometimes somethings else is used on the place of www

Have fun ...

11-25-2009, 04:06 PM	#1
giovonni Avalon Senior Member Join Date: Sep 2008 Location: within my heart Posts: 1,209	Re: Web server IP database thread - (Protection against DNS failure) Excellent heads-up ~TBird I printed and also keep a hand written list-log> as well

01-05-2010, 07:10 AM	#2
Harry_CDN Avalon Senior Member Join Date: Dec 2009 Location: Canada Posts: 52	Re: Web server IP database thread - (Protection against DNS failure) Ref: If Local ISP Name Servers are Down I've never used this service but perhaps it may become valuable to some. Free Fast Public DNS Servers List http://theos.in/windows-xp/free-fast...s-server-list/

01-05-2010, 09:46 AM	#3
EYES WIDE OPEN Avalon Senior Member Join Date: Sep 2008 Location: Hastings, UK Posts: 424	Re: Web server IP database thread - (Protection against DNS failure) what are the i.p addresses for these sites? http://lucianarchy.proboards.com/index.cgi http://www.911blogger.com/ http://boilingfrogspost.com also, how do you find an ip address if you hve a mac?

01-05-2010, 12:14 PM	#4
Operator Avalon Senior Member Join Date: Sep 2008 Location: Caribbean Posts: 375	Re: Web server IP database thread - (Protection against DNS failure) Hi, Although it's always a good idea to be prepared for set-backs the advantage of listing IP addresses is limited. Here's why: When 'they' start messing with the internet it's not likely they will target the DNS services, it's far too simple and there is a more sophisticated way to mess up without leaving traces to the root cause. Then there is a more detailed problem concerning IP's ... The internet currently uses IPv4 which consists of 4 bytes displayed as 4 numbers with values between 0 .. 255 separated by dots. The problem with IPv4 is that there are far more addresses needed than combinations available. That's why IPv6 will soon replace IPv4. IPv6 consists of 16 bytes, resulting in a lot more combinations. The way it is handled currently is that most websites do NOT have a unique IP address. The way they share their IP with others is that the IP will lead to the right server and the domain name used resolves the rest. When websites have an application running in https (encrypted http) they require an unique IP for the encryption certificate. Also when websites are that big that they run on a dedicated server (or even servers) it's likely that they will have a unique IP. So that's why in general it may not work when you use the IP directly ... If you still want to lookup IP addresses you can go here: http://ip-lookup.net/domain.php Fill in only the part after http://www. till the next / E.g. in http://www.tbrnews.org/Archives/a3005.htm lookup tbrnews.org Sometimes somethings else is used on the place of www Have fun ...