[BALUG-Admin] S/N bobble -- waiting for Michael P. on this 8-O ... "fixed"[1]

Michael Paoli Michael.Paoli@cal.berkeley.edu
Thu May 30 21:28:19 UTC 2019


Okay, fixed[1].
I'll dig[2] into it later to investigate how issue did or likely
occurred.

Thanks Rick for catching that!

footnotes/references/excerpts:
1. For certain definitions of "fixed" - serial numbers corrected, didn't
    check/validate anything else in particular - just "bumped" (updated)
    them and "pushed" (notified) 'em out, and rechecked 'till they all
    appeared out there okay on master(s) & slaves.
$ DNS_SOA_CK balug.org sf-lug.org
FQDN=balug.org. authority:
balug.org.              86400   IN      NS      ns1.balug.org.
balug.org.              86400   IN      NS      ns1.linuxmafia.com.
balug.org.              86400   IN      NS      ns1.svlug.org.
balug.org.              86400   IN      NS      puck.nether.net.
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @198.144.194.238 (ns1.balug.org.)
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @2001:470:1f04:19e::2 (ns1.balug.org.)
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @198.144.195.186 (ns1.linuxmafia.com.)
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @64.62.190.98 (ns1.svlug.org.)
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @2600:3c01::f03c:91ff:fe96:e78e (ns1.svlug.org.)
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @204.42.254.5 (puck.nether.net.)
balug.org. IN SOA ns1.balug.org. hostmaster.balug.org. 1559249859 9000  
1800 1814400 86400 @2001:418:3f4::5 (puck.nether.net.)
FQDN=sf-lug.org. authority:
sf-lug.org.             86400   IN      NS      ns.primate.net.
sf-lug.org.             86400   IN      NS      ns1.linuxmafia.com.
sf-lug.org.             86400   IN      NS      ns1.sf-lug.org.
sf-lug.org.             86400   IN      NS      ns1.svlug.org.
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @198.144.194.12 (ns.primate.net.)
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @2001:470:1f04:51a::2 (ns.primate.net.)
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @198.144.195.186 (ns1.linuxmafia.com.)
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @198.144.194.238 (ns1.sf-lug.org.)
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @2001:470:1f04:19e::2 (ns1.sf-lug.org.)
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @64.62.190.98 (ns1.svlug.org.)
sf-lug.org. IN SOA ns1.sf-lug.org. jim.well.com. 1559249874 10800 3600  
1209600 86400 @2600:3c01::f03c:91ff:fe96:e78e (ns1.svlug.org.)
$
2. pun or the like retroactively intended.  ;-)
3. unreferenced footnote.  My DNS_SOA_CK program essentially grabs the
    "upstream" delegating NS records (at least one instance of 'em),
    gets the A and AAAA records of all the delegated nameservers,
    then gets the SOA records from each of those, and displays that
    data, for the domain(s) specified - or a default set if none specified.
    (I wrote it semi-recently - I got tired of doing it semi-manually
    on a semi-frequent basis; very handy for, among other things,
    also checking that master(s) and slaves are caught up when
    going through letsencrypt.org wildcard cert validation
    request via DNS verification; also very handy to see that the
    delegated nameservers are responding and with the expected
    data (or at least expected zone S/N)).

> From: "Michael Paoli" <Michael.Paoli@cal.berkeley.edu>
> Subject: Re: [BALUG-Admin] S/N bobble -- waiting for Michael P. on this 8-O
> Date: Thu, 30 May 2019 13:50:37 -0700

>> From: "Rick Moen" <rick@linuxmafia.com>
>> Subject: [BALUG-Admin] S/N bobble -- waiting for Michael P. on this
>> Date: Thu, 30 May 2019 11:20:26 -0700
>
>> Magic 8-ball (i.e., logcheck on ns1.linuxmafia.com) says:
>>
>> System Events
>> =-=-=-=-=-=-=
>> May 30 10:05:36 linuxmafia named[11750]: zone balug.org/IN: serial  
>> number (1558725628) received from master 198.144.194.238#53 < ours  
>> (1558799284)
>> May 30 10:30:43 linuxmafia named[11750]: zone sf-lug.org/IN: serial  
>> number (1558622463) received from master 198.144.194.238#53 < ours  
>> (1558799278)
>> May 30 10:32:42 linuxmafia named[11750]: zone balug.org/IN: serial  
>> number (1558725628) received from master 198.144.194.238#53 < ours  
>> (1558799284)
>> May 30 10:57:43 linuxmafia named[11750]: zone balug.org/IN: serial  
>> number (1558725628) received from master 198.144.194.238#53 < ours  
>> (1558799284)
>>
>> Er?
>>
>> Michael, O Great Oracle of the DNS master, before I go expunging the
>> local cached zone on ns1.linuxmafia.com so as to converge in the master,
>> any thoughts or desire to act on your end?  Normally, I would expect the
>> current situation to be _strenuously avoided_ by never taking S/Ns in a
>> retrograde direction on a zone's DNS master, so I infer that
>> investigation may be in order (or at least brief discussion).
>
> 8-O
> Opps, ... that should'a never happened.
> I'll investigate & correct.  Shouldn't require any explicit
> slave action.
>
> I wonder if maybe VM came up that shouldn't have, or ???
> Anyway, will check into it and correct (might be busy mostly
> with other stuff 'till about this evening or so, but expect
> I'll have it rectified by/around then ... might then take
> wee bit for slaves to follow along & get themselves
> corrected - but likely pretty fast on that and without
> explicit slave action needed).




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