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<p>Off-list I was asked.....<br>
</p>
<p>root@ns1:/etc/bind# ls -la<br>
total 60<br>
drwxr-sr-x 3 root bind 4096 Mar 15 16:31 .<br>
drwxr-xr-x 71 root root 4096 Jan 6 08:40 ..<br>
-rw-r--r-- 1 root root 2403 Jul 27 2024 bind.keys<br>
-rw-r--r-- 1 root root 255 Jul 27 2024 db.0<br>
-rw-r--r-- 1 root root 271 Jul 27 2024 db.127<br>
-rw-r--r-- 1 root root 237 Jul 27 2024 db.255<br>
-rw-r--r-- 1 root root 353 Jul 27 2024 db.empty<br>
-rw-r--r-- 1 root root 270 Jul 27 2024 db.local<br>
-rw-r--r-- 1 root bind 458 Jul 27 2024 named.conf<br>
-rw-r--r-- 1 root bind 498 Jul 27 2024 named.conf.default-zones<br>
-rw-r--r-- 1 root bind 737 Mar 13 08:41 named.conf.local<br>
-rw-r--r-- 1 root bind 950 Jan 30 08:58 named.conf.options<br>
-rw-r----- 1 bind bind 100 Jan 3 15:27 rndc.key<br>
drwxrwsr-x 2 root bind 4096 Mar 15 16:54 zones<br>
-rw-r--r-- 1 root root 1317 Jul 27 2024 zones.rfc1918<br>
</p>
<p>root@ns1:/etc/bind/zones# ls -la<br>
total 20<br>
drwxrwsr-x 2 root bind 4096 Mar 15 16:54 .<br>
drwxr-sr-x 3 root bind 4096 Mar 15 16:31 ..<br>
-rw-rw-r-- 1 root bind 445 Jan 5 17:58 db.192.168<br>
-rw-rw-r-- 1 root bind 509 Jan 5 17:12 db.jg1.jungersen.dk<br>
-rw-rw-r-- 1 root bind 681 Mar 15 16:54 db.jungersen.dk<br>
</p>
<p>I was also aksed about the setgid bit, I have no
reason/explanation for it.<br>
Nor do I have any special wishes, so if it is best practice to do
it differently, I can change it.</p>
<p>Apparmor was also mentioned, I have no experience with that, and
have not changed it in any way (to my knowledge)...</p>
<p>if I have opened up too much in my effort to make it work, please
let me know, I wish to keep it as tight as possible.<br>
</p>
<p>:-)<br>
Danjel<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 15-03-2025 17:31, Danjel Jungersen
via bind-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:c93a2838-e134-4bd1-9cc9-5708a1e1c599@jungersen.dk">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p>I'm so sorry, but I have to trouble you guys again.</p>
<p>The help below helped, I have no errors from checkconf or
checkzone, but from journalctl I get:<br>
/etc/bind/zones/db.jungersen.dk.jbk: create: permission denied<br>
and<br>
/etc/bind/zones/db.jungersen.dk.signed.jnl: create: permission
denied</p>
<p>and some more, but I think these 2 are the causes.</p>
<p>But if I try:<br>
root@ns1:/etc/bind/zones# ps auxw|grep named<br>
bind 57446 0.1 1.2 147948 48140 ? Ssl 17:12
0:01 /usr/sbin/named -f -4 -u bind<br>
root 57472 0.0 0.0 6332 2036 pts/1 S+ 17:21
0:00 grep named<br>
</p>
<p>It look to me like the user is "bind"</p>
<p>I also have:<br>
drwxrwsr-x 2 root bind 4096 Mar 15 16:54 zones</p>
<p>I have added write permission for the bind group.</p>
<p>I have also tried to change owner to bind, same result.</p>
<p>I have .key .private and .state files is /var/cache/bind</p>
<p>What does these errors mean?<br>
I assume that the files that it tries to write are supposed to
be written(?)</p>
<p>And why is it rejected?</p>
<p>BR<br>
Danjel<br>
</p>
<div class="moz-cite-prefix">On 12-03-2025 23:49, Mark Andrews
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1A6859A7-60AD-41F2-9E67-ECA1E18DB645@isc.org">
<pre wrap="" class="moz-quote-pre">I shouldn’t have tried to write that on the phone from memory.
dnssec-policy “unlimited” {
keys { csk lifetime unlimited algorithm ECDSAP256SHA256; };
};
zone "jungersen.dk” {
type master;
file "/etc/bind/zones/db.jungersen.dk”;
allow-transfer { 192.168.20.11; };
dnssec-policy "unlimited";
};
Mark
</pre>
<blockquote type="cite">
<pre wrap="" class="moz-quote-pre">On 13 Mar 2025, at 09:13, Danjel Jungersen <a
class="moz-txt-link-rfc2396E"
href="mailto:danjel@jungersen.dk" moz-do-not-send="true"><danjel@jungersen.dk></a> wrote:
On 20-02-2025 08:40, Mark Andrews wrote:
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="" class="moz-quote-pre">The zone is available publicly, but from public serveres not hosted by me (one.com).
And points to my external ip.
My internal bind redirects local traffic directly to local servers on local ip's.
</pre>
</blockquote>
<pre wrap="" class="moz-quote-pre">DNSSEC is designed to stop spoofed answers being accepted. When you create a local zone that overrides what is in the public zones you are effectively spoofing answers. As you have a DNSSEC signed public zone if you want to have these spoofed answers accepted you need to do one of the following:
1) create a working chain of trust that links to your private zone content
Long 1 is the best long term solution....
</pre>
</blockquote>
<pre wrap="" class="moz-quote-pre">So this is the way I will try to go.
</pre>
<blockquote type="cite">
<pre wrap="" class="moz-quote-pre">You currently have the following DS which means you are using ECDSAP256SHA256 (13) as the DNSSEC key algorithm.
jungersen.dk. 7200 IN DS 26658 13 2 23E45B495015A14C3F4FF57C0A36850C013B881BAAF1E32EE4C0C839 FF9CCA52
I would add “dnssec-policy { csk lifetime unlimited algorithm ECDSAP256SHA256; };” to your internal primary if you choose to do 1 or 3. This will add a DNSKEY record to the zone and cause it to be signed. You can then take the generated DNSKEY and install it as a trust anchor on the postfix boxes.
You will need to do some reading first. Others here can give you more advice.
</pre>
</blockquote>
<pre wrap="" class="moz-quote-pre">I have now read a lot, and I think that actually understood some of it.
I have:
zone "jungersen.dk" {
type master;
file "/etc/bind/zones/db.jungersen.dk";
allow-transfer { 192.168.20.11; };
dnssec-policy { csk lifetime unlimited algorithm ECDSAP256SHA256; };
};
in named.conf.local
I throws an error, /etc/bind/named.conf.local:15: expected string near '{'
Line 15 is the dnssec-policy line.
If I uncomment this line all is well.
Can anyone tell me what is wrong with this line?
I have copy pasted it from the suggestion, and have read some online, to me it looks good.
????
BR
Danjel
</pre>
</blockquote>
</blockquote>
<div class="moz-signature">-- <br>
<meta http-equiv="content-type"
content="text/html; charset=UTF-8">
<title></title>
Med venlig hilsen/Kind regards<br>
Danjel Jungersen<br>
Mail: <a class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:danjel@jungersen.dk" moz-do-not-send="true">danjel@jungersen.dk</a><br>
Mobile: +45 20 42 20 11<br>
<br>
Jungersen Grafisk ApS,<br>
Holsbjergvej 39, DK-2620 Albertslund,<br>
Denmark.<br>
Tel: +45 43 64 10 00<br>
<br>
<a href="https://www.printlight.dk" moz-do-not-send="true">WEBSHOP:
PRINTLIGHT.DK</a> | <a href="https://www.jungersen.dk"
moz-do-not-send="true">WWW.JUNGERSEN.DK</a> <br>
<br>
<a href="https://www.jungersen.dk" moz-do-not-send="true"> <img
moz-do-not-send="false"
src="cid:part1.PDvkyGKu.Q8RVelLk@jungersen.dk" alt="Logo"
width="125" height="152" border="0" class=""></a> </div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
</blockquote>
<div class="moz-signature">-- <br>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title></title>
Med venlig hilsen/Kind regards<br>
Danjel Jungersen<br>
Mail: <a class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:danjel@jungersen.dk">danjel@jungersen.dk</a><br>
Mobile: +45 20 42 20 11<br>
<br>
Jungersen Grafisk ApS,<br>
Holsbjergvej 39, DK-2620 Albertslund,<br>
Denmark.<br>
Tel: +45 43 64 10 00<br>
<br>
<a href="https://www.printlight.dk" moz-do-not-send="true">WEBSHOP:
PRINTLIGHT.DK</a> | <a href="https://www.jungersen.dk"
moz-do-not-send="true">WWW.JUNGERSEN.DK</a> <br>
<br>
<a href="https://www.jungersen.dk" moz-do-not-send="true"> <img
moz-do-not-send="false"
src="cid:part1.PDvkyGKu.Q8RVelLk@jungersen.dk" alt="Logo"
width="125" height="152" border="0"></a> </div>
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