[AusNOG] 365 DNS issues

[David Walsh]

Hi,
    Yes, we are at Vonex, yet if I forward our DNS requests via 1.1.1.1, no problems.
I did open a ticket with MS365 support but no response.

However, we are also seeing issues getting responses back from Azure VMs so we are thinking it may be our uplink path as testing via my Telstra 5G works.
Still investigating.

As far and DNS, I tested manually with a mix of dig and ngrep on my DNS server and got no further than two levels of authoritative NS servers in the Microsoft landscape. The IPs that did not respond were hosted in Azure and is probably related to the issue we are having above.

Regards,
                David


> On 11 Oct 2024, at 1:34 PM, Shane Chrisp <shane at 2000cn.com.au> wrote:
> 
> Just wondering if others are still seeing issues with DNS resolution of 365 domains?
> 
> Im seeing communication errors when trying to resolve anything in the *..mail.protection.outlook.com for the last 12 hours or so.
> 
> -- 
> Regards
> 
> Shane Chrisp
> 2000 Computers & Networks Pty Ltd
> Mob 0412 409 856
> Email shane at 2000cn.com.au
> Web http://www.2000cn.com.au
> 
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