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Originally posted here by AngelicKnight
This is interesting:
Of course, that was a 2002 article. I wonder how much has changed since then?
So does that mean every IP address on the Internet is traced back, eventually, to one of the 13?
The primary function of " root nameservers" is providing down level name server information.
IP's and their distribution / allocation are un-related to that purpose.
Angelic, those 13 are used to resolve top-down dns requests. they are called dot servers (or root servers) ,because they resolve requests like: "who is resolving .com domain? who is resolving .fr domain?" and so on.
but although they are primary root servers, they have tons of replicas around the world.
you can see those ip address browsing dns servers .txt files --> they are listed there.
I did fnd this.Quote:
Originally posted here by AngelicKnight
13? If you find your source on that when you get a chance, that'd be worth sharing.
Kinda the same theroyQuote:
Attack on domain name servers fails
October 23rd, 2002
By Robert Lemos, CNET News.com
An assault on all 13 domain-name service root servers attempts to shut down the address books of the Internet. An attempt to cripple the computers that serve as the address books for the Internet failed on Monday.
The so-called distributed denial-of-service attack leveled a barrage of data at the 13 domain-name service root servers beginning around 1 pm PDT on Monday and apparently is ongoing, according to Internet performance measurement company Matrix NetSystems. Traffic from several Internet service providers have been slightly delayed, but because the domain name system is spread out and because the 13 root servers are the last resort for address searches, the attack had almost no effect on the Internet itself.
source: http://www.whois.sc/news/2002-10/root-attack.html
-Breeze
The easiest way bring down a large part of the net would be a physical attack. I would be willing to bet if someone did a study on it, that would be the best chance of success on taking down anything. It would take almost more zombies than what exist to flood the pipes of the root servers... They increased the pipes after those 2 of them went down a while back.
I think it would be a lot easier for a terroist to hijack a gas truck from phillips 66 and find the location of a backbone router or one of the 13 root servers and drive into it and blow the thing to crap, even though it might take 30 trucks or so. I think that would be easier for them to pull off compared to filling the pipes.
If I recall correctly there is an (for the US) and East Coast and a west coast central switching hub, (i think AT&T operate them) where various ISP's terminate. So taking down those puppies would cause some problems. I think the fear with the recent BGP exploits was that they could take down a large chunk of the routers out there (of which there are some core ones that were identified in a study, I`ll try to remember which one), so that would take out the backbone.
Outside the US you then have the various large POP's, such as the one in Canary Wharf (London) which went down the other year due to a power cut and took out half of the UK net.
I agree with Grunt, a phsyical attack would be the easiest (?) to do and would not be remediated by simply patching some network devices.
Beyond physical attacks I think an attack on the routing backbone would be the way to go, taking out the DNS servers is going to stop www.yahoo.com from resolving, but traffic will still get through as the IPs are still up. Maybe some kind of funky packet attack that worked on all network devices would be the way to go...I have toyed around with a few ideas on this.
I've seen multiple drops from backbones in the last couple of years. they only seemed to affect certian areas or certian ISP's. All it takes is one unaware backhoe worker to have admins screaming and cussing about a "fibercut" except for that one that happen out in the ocean. That one cause aultrailia to be cut off from the states.Could you imagine the look on that network techs face when they handded him wet suit and pointed him twards a boat.
Talking about net disasters... someone knows how many of the intercontinental links are by satellite? I don't know if major part of them are by satellite or by cable, but if they are by satellite a magnetic storm coming form the sun (or some kind of EP device) will be a big trouble!! :eek:
take a look at this site: http://www.cybergeography.org/atlas/cables.html
You can see tons of maps, including intercontinental links.
the Majority of connections are thru undersea cables (most fiber now). Satelite links are still too expensive for primary intercontinental backbones, although some isps have "contigency" links thru satellites.
Some Sun activities can impact satellite operations (in fact they cause - every satellite link experience at least some minutes/year shutdown due to Sun activity).
But like a Sun EM pulse that fryes satellite... i dont have enough information about those Sun tempest to see if that is probable. Maybe Some kind of massive radiation from Sun -- but it will fry us all too.. so, i dont bother about that :)
But there is EMP weapons in use (USA has) to affect eletronic devices of the enemy...
its better to have concern about humans (wars) that about natural causes....
Very interesting link. .. :D
I agree with you that we have to concern more about human activities than the natural ones.
I'm not an expert but i think that it could be an EP coming from the sun, powerfull enogh to fry all the satellites but not humans... EP has no effects ins "biological circuits" and we are bellow the atmosphere too...
If the EP kill the same satellites than humans, we will not to have worried about it! :D The trouble is be alive but unconnected! ;)
indeed. i cant imagine one day without internet. a couple of months ago, my home adsl link stopped for 8 hours and i got crazy!. and 10 minutes down at service drive me nuts..
we are really internet adict (and AO too:P)