Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
   Glossary   Glossary
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Pages: 1 [2] 3

Author Topic: Your internet access may die on May 5th  (Read 15551 times)

broadstairs

  • Kitizen
  • ****
  • Posts: 3697
Re: Your internet access may die on May 5th
« Reply #15 on: April 15, 2010, 05:51:51 PM »

I've been doing some testing and get totally conflicting results, sometimes it works and says DNSSEC is not supported and most times it fails completely both manually or using the Java applet. The GRC program purports to test DNSSEC but report no errors. So I am probably just going to wait and see what happens.

Stuart
Logged
ISP:Vodafone Router:Vodafone Wi-Fi hub FTTP

roseway

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 43467
  • Penguins CAN fly
    • DSLstats
Re: Your internet access may die on May 5th
« Reply #16 on: April 15, 2010, 06:54:22 PM »

Quote
The GRC program purports to test DNSSEC but report no errors.

I think that means that, as far as DNS Benchmark is concerned, your DNS service is good. I gathered from their documentation that, if a server being tested didn't support DNSSEC, then it was likely to choke on the test, and you would have got a message to that effect.
Logged
  Eric

tonyappuk

  • Reg Member
  • ***
  • Posts: 589
Re: Your internet access may die on May 5th
« Reply #17 on: April 15, 2010, 07:36:03 PM »

Thanks for your response Eric. I will investigate and fiddle a bit more but I am glad to see I am not alone in my confusion. And here was I thinking I was fairly computer literate!
Tony
Logged

jeffbb

  • Kitizen
  • ****
  • Posts: 2329
Re: Your internet access may die on May 5th
« Reply #18 on: April 15, 2010, 08:31:22 PM »

Hi

No apparent problem with DNS Benchmark .

But  Replysizetest reports that

Your resolver announced a buffer size bigger than the largest packet that it
can receive    This scenario can cause problems for a resolver,


It reports the

The most common causes are firewalls which block DNS packets bigger than 512 bytes, or fragmentation,
which causes a large DNS packet to be broken up into smaller fragments which routers and/or firewalls don't know how to handle.

if your announced buffer size is the default of 4096 bytes, and the measured buffer size is much smaller (say 1400 bytes),

it does  :(

 We recommend that you configure your network, routers and firewalls to handle larger packets and/or fragments.


? how is this done all double Dutch to me

using Commodo firewall
and DG834 GT  router

Regards Jeff
Logged
zen user

broadstairs

  • Kitizen
  • ****
  • Posts: 3697
Re: Your internet access may die on May 5th
« Reply #19 on: April 15, 2010, 11:53:57 PM »

Well I decided to try the TalkTalk DNS servers since I'm with them and they come out as EDNS and DNSSEC both supported with announced buffer of 4096 and actual of 3839 which is within the 300 bytes allowed. Surprised me a bit since TT often get a bad press so I was expecting them to fail!

Stuart
Logged
ISP:Vodafone Router:Vodafone Wi-Fi hub FTTP

roseway

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 43467
  • Penguins CAN fly
    • DSLstats
Re: Your internet access may die on May 5th
« Reply #20 on: April 16, 2010, 07:17:37 AM »

Quote
buffer of 4096 and actual of 3839 which is within the 300 bytes allowed

Those figures are exactly the same as I get with vnsc (4.2.2.3 and 4.2.2.5).
Logged
  Eric

jeffbb

  • Kitizen
  • ****
  • Posts: 2329
Re: Your internet access may die on May 5th
« Reply #21 on: April 16, 2010, 03:24:58 PM »

Hi
Yesterday when I tested 212.23.3.100 and 212.23.6.100 (ZEN) they both gave

announced buffer 4096 and  measured buffer size  1399 both had DNSSEC enabled .

Today

211.23.3.100 shows announced buffer 4096 and  measured buffer size  3839 bytes  this I understand is OK  :)

211.23.6.100 still shows announced buffer 4096 and  measured buffer size  1399 bytes but this is not OK :(
It still showing DNSSEC enabled

Regards Jeff



Logged
zen user

roseway

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 43467
  • Penguins CAN fly
    • DSLstats
Re: Your internet access may die on May 5th
« Reply #22 on: April 16, 2010, 04:48:29 PM »

I'm afraid I don't understand the details at all, but Zen obviously know what they're doing, and it looks as though they are increasing the buffer size as a result of the testing they've been doing.
Logged
  Eric

tonyappuk

  • Reg Member
  • ***
  • Posts: 589
Re: Your internet access may die on May 5th
« Reply #23 on: April 16, 2010, 08:21:42 PM »

I have now changed my DNS servers to be the pair that Plusnet offer as their preferred and alternate. It does seem that website loading is faster which is gratifying and at least I haven't broken anything. However if I do another Replysizetest it says DNSSEC is not enabled by these servers and the buffer/packet sizing is still too small. I think I will wait until after 5th. May and see what happens. Plusnet will surely have to get it right by then.
Tony
Logged

jeffbb

  • Kitizen
  • ****
  • Posts: 2329
Re: Your internet access may die on May 5th
« Reply #24 on: April 29, 2010, 11:24:43 PM »

Hi
May 5th fast approaching  ::)

Checked today and now Both my dns resolvers are OK :)

Regards Jeff
Logged
zen user

roseway

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 43467
  • Penguins CAN fly
    • DSLstats
Re: Your internet access may die on May 5th
« Reply #25 on: April 30, 2010, 07:21:48 AM »

Excellent :)
Logged
  Eric

BritBrat

  • Kitizen
  • ****
  • Posts: 1359
Re: Your internet access may die on May 5th
« Reply #26 on: April 30, 2010, 12:20:15 PM »

Ours may die but not for that reason.

They are going to move a WW2 bomb past our house to explode it is a safer area than it is at the moment.

We have had police notices about having bags packed ready for evacuation.
Logged

UncleUB

  • Helpful
  • Senior Kitizen
  • *
  • Posts: 29543
Re: Your internet access may die on May 5th
« Reply #27 on: April 30, 2010, 12:32:57 PM »



They are going to move a WW2 bomb past our house to explode it is a safer area than it is at the moment.


What about here...
Logged

UncleUB

  • Helpful
  • Senior Kitizen
  • *
  • Posts: 29543
Re: Your internet access may die on May 5th
« Reply #28 on: May 08, 2010, 06:40:06 PM »

Well its past 5th May and I'm still here......are you ?  ;D
Logged

silversurfer44

  • Kitizen
  • ****
  • Posts: 4421
  • Lord Muck
    • Ben Novice Weather
Re: Your internet access may die on May 5th
« Reply #29 on: May 08, 2010, 06:58:23 PM »

I've just had a look and yes I'm still here.  :crazy:
Logged
Colin II : It's no good being a pessimist, it wouldn't work anyway.
Pages: 1 [2] 3
 

anything