<div dir="ltr">Sending from the correct alias this time!</div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, 16 Mar 2025 at 09:03, Greg Choules <<a href="mailto:gregchoules@googlemail.com">gregchoules@googlemail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Thank you.<div>The problem is that named is running as user "bind" but that user doesn't have file system permissions to create and write to files (the .jnl and .jbk files at least) in places that it needs to be writable: the directories it's working in are owned by "root".</div><div><br></div><div>You might also check what group the user "bind" is in using the command "id bind". It is probably (but not necessarily) in the group "bind" as well. Even though the directory "zones" has group write privilege, its parent directory doesn't.</div><div><br></div><div><div>I would either change ownership of "/etc/bind" and all files and folders below that from "root" to "bind", or, if the group for user "bind" is also "bind", leave ownership as root but change group permissions to rwx for everything "/etc/bind" and below. You could try starting with just "/etc/bind" and see if that helps. Then continue down if not.</div><div><br></div></div><div>Some more Linux-savvy people will no doubt have something to say on the matter :)</div><div><br></div><div>Cheers, Greg</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 15 Mar 2025 at 21:25, Danjel Jungersen via bind-users <<a href="mailto:bind-users@lists.isc.org" target="_blank">bind-users@lists.isc.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<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 <a href="http://db.jg1.jungersen.dk" target="_blank">db.jg1.jungersen.dk</a><br>
-rw-rw-r-- 1 root bind 681 Mar 15 16:54 <a href="http://db.jungersen.dk" target="_blank">db.jungersen.dk</a><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>On 15-03-2025 17:31, Danjel Jungersen
via bind-users wrote:<br>
</div>
<blockquote type="cite">
<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>On 12-03-2025 23:49, Mark Andrews
wrote:<br>
</div>
<blockquote type="cite">
<pre>I shouldn’t have tried to write that on the phone from memory.
dnssec-policy “unlimited” {
keys { csk lifetime unlimited algorithm ECDSAP256SHA256; };
};
zone "<a href="http://jungersen.dk" target="_blank">jungersen.dk</a>” {
type master;
file "/etc/bind/zones/<a href="http://db.jungersen.dk" target="_blank">db.jungersen.dk</a>”;
allow-transfer { 192.168.20.11; };
dnssec-policy "unlimited";
};
Mark
</pre>
<blockquote type="cite">
<pre>On 13 Mar 2025, at 09:13, Danjel Jungersen <a href="mailto:danjel@jungersen.dk" target="_blank"><danjel@jungersen.dk></a> wrote:
On 20-02-2025 08:40, Mark Andrews wrote:
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre>The zone is available publicly, but from public serveres not hosted by me (<a href="http://one.com" target="_blank">one.com</a>).
And points to my external ip.
My internal bind redirects local traffic directly to local servers on local ip's.
</pre>
</blockquote>
<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>So this is the way I will try to go.
</pre>
<blockquote type="cite">
<pre>You currently have the following DS which means you are using ECDSAP256SHA256 (13) as the DNSSEC key algorithm.
<a href="http://jungersen.dk" target="_blank">jungersen.dk</a>. 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>I have now read a lot, and I think that actually understood some of it.
I have:
zone "<a href="http://jungersen.dk" target="_blank">jungersen.dk</a>" {
type master;
file "/etc/bind/zones/<a href="http://db.jungersen.dk" target="_blank">db.jungersen.dk</a>";
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>-- <br>
Med venlig hilsen/Kind regards<br>
Danjel Jungersen<br>
Mail: <a href="mailto:danjel@jungersen.dk" target="_blank">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" target="_blank">WEBSHOP:
PRINTLIGHT.DK</a> | <a href="https://www.jungersen.dk" target="_blank">WWW.JUNGERSEN.DK</a> <br>
<br>
<a href="https://www.jungersen.dk" target="_blank"> <img src="cid:ii_1959d8d6c2034589e5e1" alt="Logo" width="125" height="152" border="0"></a> </div>
<br>
<fieldset></fieldset>
</blockquote>
<div>-- <br>
Med venlig hilsen/Kind regards<br>
Danjel Jungersen<br>
Mail: <a href="mailto:danjel@jungersen.dk" target="_blank">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" target="_blank">WEBSHOP:
PRINTLIGHT.DK</a> | <a href="https://www.jungersen.dk" target="_blank">WWW.JUNGERSEN.DK</a> <br>
<br>
<a href="https://www.jungersen.dk" target="_blank"> <img src="cid:ii_1959d8d6c2034589e5e1" alt="Logo" width="125" height="152" border="0"></a> </div>
</div>
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