[AusNOG] 365 DNS issues

[Nathan Brookfield]

After doing more testing outside of 1.1.1.1….

simadmin at rad01:~$ nslookup
> set q=mx
> iperium-com-au.mail.protection.outlook.com
Server:         223.25.112.27
Address:        223.25.112.27#53

Non-authoritative answer:
*** Can't find iperium-com-au.mail.protection.outlook.com: No answer

Authoritative answers can be found from:
mail.protection.outlook.com
        origin = ns1-proddns.glbdns.o365filtering.com
        mail addr = hostmaster.o365filtering.com
        serial = 2013010801
        refresh = 3600
        retry = 600
        expire = 86400
        minimum = 3600

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From: AusNOG <ausnog-bounces at lists.ausnog.net> on behalf of Joe Saxton <Joe.Saxton at steadfasttech.com.au>
Date: Friday, 11 October 2024 at 14:24
To: David Walsh <davow at onthenet.com.au>, shane at 2000cn.com.au <shane at 2000cn.com.au>
Cc: ausnog at lists.ausnog.net <ausnog at lists.ausnog.net>
Subject: Re: [AusNOG] 365 DNS issues
Shane, we've been seeing issues as well which MS have confirmed. Nothing published on their service status board as of yet.

-

Regards,

Joe Saxton

Infrastructure Lead

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----Original Message-----
From: AusNOG <ausnog-bounces at lists.ausnog.net> On Behalf Of David Walsh
Sent: Friday, October 11, 2024 2:45 PM
To: shane at 2000cn.com.au
Cc: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] 365 DNS issues

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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 https://au01.l.antigena.com/l/zQW5R8KVfZAJgoUePQsHM4Wc9xEnPQxlH8ZuaLLUvkiiYy5-9WXfyP4i2zbNol3MXY7vGY_s_M-9QJQVUc4NsLFXXck-mp4wTpx33CVaGeRQ4hC3oP1k8oypZ6-WhGHrC8EPlQaqd_kSIHqs_dp
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> https://lists.ausnog.net/mailman/listinfo/ausnog

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