[Pdns-users] SERVFAIL pdns-recursor

Sun Nov 1 15:31:18 UTC 2015

On Sun, Nov 01, 2015 at 03:23:42PM +0000, Federico Olivieri wrote:
> Hi guys!
> Any suggestions/clue?

It says 'timeouts', which suggests you might have issues reaching google.
Please point your recursor to metronome as explained in
http://blog.powerdns.com/2014/12/11/powerdns-graphing-as-a-service/
so we can diagnose if there are network issues.

Thanks!

> 
> Thanks in advance
> 
> Federico
> On 30 Oct 2015 12:06, "Federico Olivieri" <lvrfrc87 at gmail.com> wrote:
> 
> > Hi guys,
> >
> > I know that this topics has been already discussed in the past but
> > unfortunately the answer gave are not really clear to me (for a my leak of
> > knowledge :) )
> >
> > On my server I can see many SERVFAIL error messages. Some of them are
> > related to invers arp (not interested in them) other, are related to more
> > common domani name (as youtube, facebook and google)
> >
> > i.e
> >
> > oot at banana:/var/log# cat messages.1 | grep "SERVFAIL" | grep -v
> > "in-addr.arpa" | grep "google"
> > Oct 22 17:05:58 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|A, timeouts: 5, throttles: 2, queries: 6,
> > 8076msec
> > Oct 22 17:05:59 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'www.google.com.' because: Too much time
> > waiting for www.google.com.|A, timeouts: 5, throttles: 0, queries: 6,
> > 8746msec
> > Oct 22 17:05:59 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of '1.client-channel.google.com.' because:
> > Too much time waiting for 1.client-channel.google.com.|A, timeouts: 5,
> > throttles: 0, queries: 6, 8745msec
> > Oct 22 17:05:59 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of '1.client-channel.google.com.' because:
> > Too much time waiting for 1.client-channel.google.com.|A, timeouts: 5,
> > throttles: 0, queries: 6, 8261msec
> > Oct 22 17:05:59 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'www.google.com.' because: Too much time
> > waiting for www.google.com.|A, timeouts: 5, throttles: 0, queries: 6,
> > 8261msec
> > Oct 22 17:05:59 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|A, timeouts: 5, throttles: 2, queries: 6,
> > 8365msec
> > Oct 22 17:06:01 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|A, timeouts: 5, throttles: 5, queries: 6,
> > 8103msec
> > Oct 22 17:06:01 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'www.google.com.' because: Too much time
> > waiting for www.google.com.|A, timeouts: 5, throttles: 1, queries: 6,
> > 8161msec
> > Oct 22 17:06:01 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of '1.client-channel.google.com.' because:
> > Too much time waiting for 1.client-channel.google.com.|A, timeouts: 5,
> > throttles: 1, queries: 6, 8160msec
> > Oct 22 17:06:03 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|A, timeouts: 5, throttles: 4, queries: 6,
> > 8191msec
> > Oct 22 17:06:04 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of '1.client-channel.google.com.' because:
> > Too much time waiting for 1.client-channel.google.com.|A, timeouts: 4,
> > throttles: 2, queries: 5, 7187msec
> > Oct 22 17:06:04 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of '1.client-channel.google.com.' because:
> > Too much time waiting for 1.client-channel.google.com.|A, timeouts: 4,
> > throttles: 0, queries: 5, 7144msec
> > Oct 22 17:06:04 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'www.google.com.' because: Too much time
> > waiting for www.google.com.|A, timeouts: 4, throttles: 0, queries: 5,
> > 7143msec
> > Oct 22 17:06:04 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|A, timeouts: 5, throttles: 4, queries: 6,
> > 7795msec
> > Oct 22 17:06:06 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.11 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|A, timeouts: 5, throttles: 4, queries: 6,
> > 8446msec
> > Oct 22 17:06:07 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'www.googleapis.com.' because: Too much
> > time waiting for www.googleapis.com.|AAAA, timeouts: 5, throttles: 0,
> > queries: 6, 8107msec
> > Oct 22 17:06:08 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'clients4.google.com.' because: Too much
> > time waiting for clients4.google.com.|AAAA, timeouts: 5, throttles: 0,
> > queries: 6, 8053msec
> > Oct 22 17:06:09 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'clients3.google.com.' because: Too much
> > time waiting for clients3.google.com.|AAAA, timeouts: 5, throttles: 0,
> > queries: 6, 8453msec
> > Oct 22 17:06:11 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'mtalk.google.com.' because: Too much time
> > waiting for mtalk.google.com.|AAAA, timeouts: 5, throttles: 0, queries: 6,
> > 8380msec
> > Oct 22 17:06:31 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'www.googleapis.com.' because: Too much
> > time waiting for www.googleapis.com.|A, timeouts: 5, throttles: 0, queries:
> > 6, 8513msec
> > Oct 22 17:06:31 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'clients4.google.com.' because: Too much
> > time waiting for clients4.google.com.|A, timeouts: 5, throttles: 0,
> > queries: 6, 8074msec
> > Oct 22 17:06:32 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'clients3.google.com.' because: Too much
> > time waiting for clients3.google.com.|A, timeouts: 5, throttles: 0,
> > queries: 6, 8295msec
> > Oct 23 11:00:57 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'play.googleapis.com.' because: Too much
> > time waiting for googleapis.l.google.com.|AAAA, timeouts: 4, throttles: 0,
> > queries: 6, 8023msec
> > Oct 23 11:02:18 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 192.168.0.12 during resolve of 'www.googleapis.com.' because: Too much
> > time waiting for googleapis.l.google.com.|AAAA, timeouts: 4, throttles: 0,
> > queries: 6, 8246msec
> > Oct 23 11:11:36 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 78.152.97.196 during resolve of 'www.googleapis.com.' because: Too much
> > time waiting for googleapis.l.google.com.|A, timeouts: 4, throttles: 0,
> > queries: 6, 7674msec
> > Oct 23 11:51:08 banana pdns_recursor[2485]: Sending SERVFAIL to
> > 5.172.125.114 during resolve of 'www.youtube.com.' because: Too much time
> > waiting for youtube-ui.l.google.com.|A, timeouts: 4, throttles: 0, queries:
> > 6, 7465msec
> >
> > Now, what I have learnt in the life is that everything is possible and it
> > could be possible that authoritative servers for youtube and google are
> > "busy" and they don't forward the reply on-time but...it seems strange to
> > me.
> >
> > There are other reasons for a SERVFAIL reply? Something could be wrong on
> > my set-up
> >
> > Thank you for your time
> >
> > Regards
> >
> > Federico
> >

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