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Outlook.com DNS records disappeared

outlook.com

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Re: Outlook.com DNS records disappeared

#71

Post by tpurves »

Do they never learn? I am suddenly remebering distant flashbacks to 2001 when microsoft wiped out hotmail for 24hrs with a massive DNS screw-up:

CNET: Microsoft blames technicians for massive outage (2001) http://news.cnet.com/2100-1001-251427.html

Wired: How, Why Microsoft Went Down (2001) http://www.wired.com/science/discoveries/news/2001/01/41412?...

Can you imagine in those days, everyone was on hotmail, gmail hadn't even been invented yet.

Re: Outlook.com DNS records disappeared

#72

Post by iLoch »

Pro tip for anyone trying to check if a DNS record is working: do an NS lookup in cmd (Windows) in interactive mode. Set the server to the IP of a root DNS zone network (you can find these on Google) then enter that. Now do an nslookup for the domain you want.

Re: Outlook.com DNS records disappeared

#73

Post by niels_olson »

mistermann wrote: post #68
oneeyedpigeon wrote: post #34

Earlier quoted context omitted.

Maybe if Microsoft wasn't wasting its time trying to spread slurs about competitors, it could actually spend that time creating interesting software, building viable new products, and making sure it doesn't f*ck up its own DNS records. Or maybe someone's making that point for them ...

Judging by their revenues, someone must find their software interesting, or at least useful.

They just haven't finished burning through the world's biggest lead.

Re: Outlook.com DNS records disappeared

#77

Post by bencxr »

Based on what I have heard, the issue was caused by a bad active directory GPO that caused firewall rules to refuse DNS requests. Neither outlook/xbox/etc would have had any control over it.

I heard that the issue has since been solved internally from 4.30 PST, though DNS changes often take time to propagate externally, taking TTL settings and ISP caches into consideration.

Re: Outlook.com DNS records disappeared

#78

Post by larrys »

natevancouver wrote: post #35
mrmondo wrote: post #16

Yeah, dropping all your NS records from your domain will do that; $ dig NS outlook.com ; > DiG 9.9.3-rpz2+rl.13214.22-P2-Debian-1:9.9.3.dfsg.P2-4 > NS outlook.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER

SERVFAIL doesn’t mean they dropped the records (that would be NXDOMAIN). It does mean their nameservers aren’t responding.

...which can be verified (as I did earlier in another thread) by querying the nameservers directly.

https://news.ycombinator.com/item?id=6778272

Re: Outlook.com DNS records disappeared

#79

Post by larrys »

iLoch wrote: post #72

Pro tip for anyone trying to check if a DNS record is working: do an NS lookup in cmd (Windows) in interactive mode. Set the server to the IP of a root DNS zone network (you can find these on Google) then enter that. Now do an nslookup for the domain you want.

Actually no. The first step would be to go directly and query the nameservers set in the whois record (not the registrars which could be wrong but the registry).

For xbox.com that is:

Name Server: NS1.MSFT.NET Name Server: NS2.MSFT.NET Name Server: NS3.MSFT.NET Name Server: NS4.MSFT.NET Name Server: NS5.MSFT.NET

Re: Outlook.com DNS records disappeared

#80

Post by girvo »

oneeyedpigeon wrote: post #34
hsod wrote: post #22

Earlier quoted context omitted.

this has nothing to do with the scroogled campaing though...

Maybe if Microsoft wasn't wasting its time trying to spread slurs about competitors, it could actually spend that time creating interesting software, building viable new products, and making sure it doesn't f*ck up its own DNS records. Or maybe someone's making that point for them ...

Wow. That was a reach.
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