nanog mailing list archives

Re: wikimedia dns issue


From: Randy Bush <randy () psg com>
Date: Wed, 27 Nov 2013 09:42:07 +0900

I got there because of a FireFox cert reject. You are losing money. 
-- 
Phones are not computers and suck for email

Matthew Walker <mwalker () wikimedia org> wrote:
Randy,

Thanks for the concern -- if I understand your email correct the issue
is
not that you cannot resolve donate.wikimedia.org; but it's that one of
our
subdomains resolves to something that's not a WMF server?

If so; the behavior you're seeing, that
links.email.donate.wikimedia.org goes
to ?.mkt41.net is correct. What we're doing is year is using an
external
bulk mailer to try and ensure deliverability of fundraising mail (it
turns
out that we get about $1 per email so getting good deliverability is
pretty
important.) The bulk mailer, Silverpop, does link rewriting in the body
of
the email for use statistical things (we A/B test our emails and use
their
dashboards to do so).

For what its worth our donor rights policy [1] applies to this type of
data.

[1] http://wikimediafoundation.org/wiki/Donor_policy

~Matt Walker
Wikimedia Foundation
Fundraising Technology Team


On Tue, Nov 26, 2013 at 3:44 PM, Randy Bush <randy () psg com> wrote:

leslie, you out there?

ryuu.psg.com:/Users/randy> host links.email.donate.wikimedia.org.
links.email.donate.wikimedia.org is an alias for recp.mkt41.net.
recp.mkt41.net has address 74.121.50.40

   $ dscacheutil -flushcache

does not clear it

this is all in tokyo.  so i ssh into a server in seattle westin.

    psg.com:/usr/home/randy> host links.email.donate.wikimedia.org.
    links.email.donate.wikimedia.org is an alias for recp.mkt41.net.
    recp.mkt41.net has address 74.121.50.40

the real or unreal CNAME RR is pretty prevalent

pretoria

    root@afnog:~ # host links.email.donate.wikimedia.org.
    links.email.donate.wikimedia.org is an alias for recp.mkt41.net.
    recp.mkt41.net has address 74.121.50.40

london starts to scare me

    drinx.linx.net:/root# host links.email.donate.wikimedia.org.
    ;; connection timed out; no servers could be reached
    drinx.linx.net:/root# host links.email.donate.wikimedia.org.
    ;; connection timed out; no servers could be reached

so i look at the nearest zone i can find

    ryuu.psg.com:/Users/randy> doc -p -w donate.wikimedia.org.
    Doc-2.2.3: doc -p -w donate.wikimedia.org.
    Doc-2.2.3: Starting test of donate.wikimedia.org.   parent is
wikimedia.org.
    Doc-2.2.3: Test date - Tue Nov 26 10:46:48 JST 2013
    SYSerr: No servers for donate.wikimedia.org. returned SOAs ...
    Summary:
       YIKES: doc aborted while testing donate.wikimedia.org.  parent
wikimedia.org.
       Incomplete test for donate.wikimedia.org. (1)
    Done testing donate.wikimedia.org.  Tue Nov 26 10:46:49 JST 2013

at least the parent is ok

    ryuu.psg.com:/Users/randy> doc -p -w wikimedia.org.
    Doc-2.2.3: doc -p -w wikimedia.org.
    Doc-2.2.3: Starting test of wikimedia.org.   parent is org.
    Doc-2.2.3: Test date - Tue Nov 26 10:47:45 JST 2013
    Summary:
       No errors or warnings issued for wikimedia.org.
    Done testing wikimedia.org.  Tue Nov 26 10:47:48 JST 2013

aha!

    ryuu.psg.com:/Users/randy> ns donate.wikimedia.org.
    donate-lb.eqiad.wikimedia.org.

i suspect a load balancer

yes, i reported this to wikimedia two days ago.  a response, then
black
hole.  problem persists.

randy




Current thread: