Post by thread:[OT] Internet DNS down

NZ seems to have fallen into a DNS hole. Email works OK. Browser can't find anything. Pinging alpha URLs gives numeric addresses which work when inserted into browser. Adding DNS addresses for another NZ ISP and putting at the top of the DNS table doesn't help. My daughter just arrived and said that the church computers can't access the internet either. They use a wireless based ISP service which is largely independent of the national Telecom internet backbone. If anyone is going to be up they arguably have the most chance. Interesting that Ping resolves OK. Must find out what DNS that is using :-) Russell McMahon

Hi Russell, I've been on the net for about the last hour and half - no problems! Maybe it's a paradise thing. Richard P On 19/05/06, Russell McMahon <spam_OUTapptechTakeThisOuTparadise.net.nz> wrote: {Quote hidden}> NZ seems to have fallen into a DNS hole. > Email works OK. > Browser can't find anything. > Pinging alpha URLs gives numeric addresses which work when inserted > into browser. > > Adding DNS addresses for another NZ ISP and putting at the top of the > DNS table doesn't help. > My daughter just arrived and said that the church computers can't > access the internet either. They use a wireless based ISP service > which is largely independent of the national Telecom internet > backbone. If anyone is going to be up they arguably have the most > chance. > > Interesting that Ping resolves OK. > Must find out what DNS that is using :-) > > > Russell McMahon > > -

> NZ seems to have fallen into a DNS hole. > Email works OK. > Browser can't find anything. > Pinging alpha URLs gives numeric addresses which work when > inserted into browser. Clear had a recorded message about international access being down. Although I could get any .co.nz except google.co.nz But I think the cleaner musta plugged the cable back in a short time ago

> I've been on the net for about the last hour and half - no problems! > Maybe it's a paradise thing. Paradise no go via alpha name which *should* mean Clear generally. IHUG DNS's didn't fix it. Woosh down too. BUT using ping on eg http://www.google.com etc gave a normal echo AND plugging the IP address into the browser gace Google etc. SO seems like a DNS server error affecting at least 3 NZ ISps but NOT the DNS used for ping. Anyone know how Windows resolves IP addresses for Ping? And is it / why is it not using the DNSs in the PCs Internet configuration? Or. is it, and there's something more complex happening? Russell

Russell McMahon wrote: > Or. is it, and there's something more complex happening? > > Russell Yesterday we had similar problems here in California. Digikey searches would go anywhere from near instant to "server not responding; try again?" Mouser, Future, Maxim all the same. This morning it has been a little hit and miss as well. Of course, it only happens when you *really* need to use the net for business. Ordering parts for example. It's been a long time since I have needed to actually speak to a sales clerk to buy parts. The net makes it just oh so easy. We begin to totally rely on it. Then - wham! it disappears. It makes one wonder just what the repercussions would be world wide to businesses if it were to actually go 100% down for a week or several...

On Sat, 20 May 2006, Russell McMahon wrote: > Anyone know how Windows resolves IP addresses for Ping? > And is it / why is it not using the DNSs in the PCs Internet configuration? > Or. is it, and there's something more complex happening? On at least one monitoring session about three years ago I caught ms IE on Windows 98 go out (redirect) to msn Europe and then redirect to the given address after that. The address given (url) was valid and tested. No toolbars were installed at the time. This may or may not be related. Peter

Hi, We had a problem yesterday as well. Had to boot DNS server in a safe mode, to remove firewall that "magically" got there (there is a firewall box where servers meet the Internet, so our DNS server doesn't run a firewall). I don't want to jump ahead with any conclusions, but question: does anybody know if any of the affected DNS or web servers were using Windows 2003 Server OS? Could it be something related to automatic windows 2003 server updates? r. {Original Message removed}

Russell McMahon wrote: >> I've been on the net for about the last hour and half - no problems! >> Maybe it's a paradise thing. > > Paradise no go via alpha name which *should* mean Clear generally. > IHUG DNS's didn't fix it. > Woosh down too. > > BUT using ping on eg http://www.google.com etc > gave a normal echo AND plugging the IP address into the browser gace > Google etc. > > SO seems like a DNS server error affecting at least 3 NZ ISps but NOT > the DNS used for ping. > > Anyone know how Windows resolves IP addresses for Ping? AFAIK the dns resolution is the same for ping and for http, ftp and other application protocols (set at that one place in the connection configuration). But the protocol used to transmit the data is different (icmp for ping, tcp for http). AFAIK in general, routers and firewalls have different configurations for different protocols. It is easily possible that somewhere upstream from you icmp passes but tcp doesn't. Since the name resolution works with ping, your connection to your dns server seems to be fine. Gerhard