Re: Fun with nsudpate and ac1.nstld.com

2020-07-07 Thread Tony Finch
@lbutlr  wrote:
>
> The latest surprise was that dnssec-enable yes; is obsolete in Bind 9.16.

`dnssec-enable yes` has been the default since 2007, so that directive has
been useless for quite a long time :-) What changed in 9.16 is that you
now can't turn DNSSEC off. (Specifically, support for correctly serving
signed zones on authoritative servers, and support for DNSSEC-aware
clients of resolvers, whether or not any validation is happening.
`dnssec-validation` is a separate setting.)

Tony.
-- 
f.anthony.n.finchhttp://dotat.at/
individual and social justice
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Re: Fun with nsudpate and ac1.nstld.com

2020-07-07 Thread @lbutlr
On 06 Jul 2020, at 17:59, Mark Andrews  wrote:
> Nsupdate can normally determine the name of the zone that has to be updated 
> so most of the time you don’t need to specify the zone.  There are a few 
> cases, like when adding delegating NS records or glue to the parent zone you 
> have to override the normal zone discovery procedure.

So if I were to try adding web2.example.com via nsupdate I could simply 

> update add web2.example.com 96400 IN CNAME www.covisp.net
> send

That's good to know, but I fear I will remember that and use it in cases where 
I do need to specify it and muck things up.

I change DNS settings so infrequently that each time it is almost like starting 
over, especially since the underlying software has changed as well. Also, I 
need better notes, which I am taking this time. (Most of the serials on the DNS 
files are more than two years old)

The latest surprise was that dnssec-enable yes; is obsolete in Bind 9.16. I've 
noticed no fallout from simply uncommenting it, so I assume it is either 
required now or implied with dnssec-validation set or auto-dnssec in the zone 
config.

I do have motivation to get all this nsupdate stuff square, however, as I want 
to move Letsencrypt to wildcard certs and that requires updating the DNS during 
the LE exchange.



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Re: Fun with nsudpate and ac1.nstld.com

2020-07-06 Thread Mark Andrews
Actually you had "zone name covisp.net” which told nsupdate to update the 
“name.” zone as it was treated as “zone name”.  Nsupdate then when and looked 
up the SOA for name and found ac1.nstld.com is the primary server.

name.   86400   IN  SOA ac1.nstld.com. 
info.verisign-grs.com. 1594079077 1800 900 604800 86400

Nsupdate can normally determine the name of the zone that has to be updated so 
most of the time you don’t need to specify the zone.  There are a few cases, 
like when adding delegating NS records or glue to the parent zone you have to 
override the normal zone discovery procedure.

Mark

> On 7 Jul 2020, at 08:59, @lbutlr  wrote:
> 
> On 06 Jul 2020, at 16:47, Kevin Darcy  wrote:
>> You didn't dot-terminate covisp.net in the "zone" statement
> 
> 
> 
> Ow!
> 
> 
> 
> Sigh.
> 
> 
> 
> -- 
> The whole thing that makes a mathematician's life worthwhile is that
>   he gets the grudging admiration of three or four colleagues
> 
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PHONE: +61 2 9871 4742  INTERNET: ma...@isc.org

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Re: Fun with nsudpate and ac1.nstld.com

2020-07-06 Thread @lbutlr
On 06 Jul 2020, at 16:47, Kevin Darcy  wrote:
> You didn't dot-terminate covisp.net in the "zone" statement



Ow!



Sigh.



-- 
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he gets the grudging admiration of three or four colleagues

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Re: Fun with nsudpate and ac1.nstld.com

2020-07-06 Thread Kevin Darcy
[ Classification Level: GENERAL BUSINESS ]


You didn't dot-terminate covisp.net in the "zone" statement, so it may be
appending who-knows-what to one of its queries, and going awry.

nsupdate -d (or -D) shows all :-)

 - Kevin

On Mon, Jul 6, 2020 at 6:32 PM @lbutlr  wrote:

> Trying to verify that I can make changes with nsupdatem and running into
> something I don’t understand.
>
>  mail # nsupdate -k admin.key
> > zone name covisp.net
> > update delete ns1.covisp.net. INA   65.121.55.42
> > update add ns1.covisp.net. 3601 INA   65.121.55.42
> > send
> ; Communication with 192.42.173.30#53 failed: timed out
>
> Uh… what? Why is it trying to update 192.42.173.30 (ac1.nstld.com)?
>
> That IP does not appear in any file in /usr/local/etc/ nor in /etc/ on my
> system.
>
> What am I missing here?
>
> In fact, the only file on the entire /usr/ that has this IP address in it
> is the draft copy of this email.
>
>
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Fun with nsudpate and ac1.nstld.com

2020-07-06 Thread @lbutlr
Trying to verify that I can make changes with nsupdatem and running into 
something I don’t understand.
 
 mail # nsupdate -k admin.key 
> zone name covisp.net
> update delete ns1.covisp.net. INA   65.121.55.42
> update add ns1.covisp.net. 3601 INA   65.121.55.42
> send
; Communication with 192.42.173.30#53 failed: timed out

Uh… what? Why is it trying to update 192.42.173.30 (ac1.nstld.com)?

That IP does not appear in any file in /usr/local/etc/ nor in /etc/ on my 
system.

What am I missing here?

In fact, the only file on the entire /usr/ that has this IP address in it is 
the draft copy of this email.


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