[AusNOG] Is there anyone from Telstra available who works in the Telstra DNS dept available?

[Tim Butler]

Chris,

The main issue with Google's DNS / OpenDNS is the fact that Akamai still 
doesn't play nicely with it.  Most other CDN's are fine, but Akamai 
being one of the largest does make it a problem.  It's most noticeable 
when downloading software updates (eg iTunes / OSX etc), as it doesn't 
correctly choose an Australian peer. For large updates I'll change my 
DNS before and then change it back to 8.8.8.8 afterwards. Other than 
this, using Google's DNS works perfectly.

Thanks,

Tim.


On 18/02/13 10:26 AM, Chris Scholfield wrote:
>
> Thanks for your help everyone,  pointing to 8.8.8.8 does resolve the 
> problem we had.
>
> I may leave it on that permanently now. Give TID DNS the flick since 
> everybody on list is saying that they are too slow in updating their 
> records.
>
> However, I've read about people experiencing problems using Google DNS 
> instead of a local DNS, in regards to stuff like DNS location 
> redirection.
>
> Considering that's the problem that we had this morning was IP 
> location blocking on websites we need to use, do the benefits of using 
> Google DNS outweigh the problems (if there are problems at all)?
>
> Thanks for your help and input
>
> Chris.
>
> *From:*Jeffrey Sims [mailto:jeffy at tehintartubes.net]
> *Sent:* Monday, 18 February 2013 11:00 AM
> *To:* Chris Scholfield
> *Subject:* Re: [AusNOG] Is there anyone from Telstra available who 
> works in the Telstra DNS dept available?
>
> Hey,
>
> As an FYI, Telstra's DNS is notoriously slow when updating. I recently 
> conducted a change for a customer we moved from dual ADSL to Single 
> SHDSL and updated the DNS entries.
>
>
> Telstra was the last to update despite having the TTL dropped as low 
> as it could could go. This because the root TLDN server within Telstra 
> only updates EVERY 24HRS and no sooner/later. Telstra ignore TTLs.
>
> So until it's passed 24hrs, you won't see downstream DNS within 
> Telstra updating. As someone recommended, alter your DNS pointers to 
> 8.8.8.8 or another DNS server until the serial on the DNS at Telstra 
> increments.
>
> Cheers
>
> On Mon, Feb 18, 2013 at 10:36 AM, Chris Scholfield 
> <admincs at heartland.com.au <mailto:admincs at heartland.com.au>> wrote:
>
> Hello,
>
> We've been experiencing a problem with our net traffic.  We use 
> Symantec Messagelabs as our net proxy, and over the weekend they had a 
> problem with the AUS proxy server, and cut over to the US one.
>
> Messagelabs told me this morning that this has been resolved, but the 
> Telstra DNS seems to be still pointing to the states when we try to 
> resolve the Aus proxy address.
>
> Is anyone from Telstra available in this area who can look into this 
> please?  If you need any information, please contact me off-list.
>
> Chris Scholfield
>
>
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