dns/bind: Fixup and feature expansion

a) Fixes zone_test
b) Fixes command truncation in grid-primary-domains
c) General tab help expansion and reformatting
d) General tab option grouping
e) Converts NetworkType to ACLs where BIND uses Address Match Lists
f) Reformats named.conf (spacing and layout)
g) Adds listen-on-v6 { none; } when IPv6 is disabled (likely superflous)
h) Adds other rate-limiting options
i) Adds recursion no; option for authoritative servers
j) Adds allow-query-cache option as this also controls recursion
k) Adds global forward only option to forwarders
l) Adds forward only option to forward zones
m) Edit Forward zone dialog help expansion and reformatting

Signed-off-by: benyamin-codez <[email protected]>

Author: benyamin-codez

dns/bind/src/opnsense/mvc/app/controllers/OPNsense/Bind/forms/dialogEditBindForwardDomain.xml

@@ -9,14 +9,39 @@
         <id>domain.domainname</id>
         <label>Zone Name</label>
         <type>text</type>
-        <help>Set the name for this zone. Both forward and reverse zones may be specified, i.e. example.com or 0.168.192.in-addr.arpa.</help>
+        <help><![CDATA[
+              Set the name for this zone.
+              <br/>Both forward and reverse zones may be specified.
+              <br/>Examples include:
+              <br/>example.com
+              <br/>0.168.192.in-addr.arpa
+              ]]></help>
+    </field>
+    <field>
+        <id>domain.forwardonly</id>
+        <label>Forward Only</label>
+        <type>checkbox</type>
+        <help><![CDATA[
+              Disables recursion if forwarding fails.
+              <br/>The default is to attempt forwarders first and only perform
+              <br/>recursive lookups if forwarding fails. This setting is only
+              <br/>meaningful if the list of forwarders is not empty.
+              <br/>Can be used to override global forwarding behaviour for this
+              <br/>domain by specifying the same servers below.
+              <br/>This directive is explictily set to either forward only; or
+              <br/>forward first; to avoid any furtherance of doubt.
+              ]]></help>
     </field>
     <field>
         <id>domain.forwardserver</id>
         <label>Primary IP</label>
         <style>tokenize</style>
         <type>select_multiple</type>
         <allownew>true</allownew>
-        <help>Set the IP address of server to forward requests to.</help>
+        <help><![CDATA[
+              Set any combination of IPv4 and IPv6 addresses for which to
+              <br/>forward queries to for this domain.
+              <br/>Used to override global forwarders for this domain.
+              ]]></help>
     </field>
 </form>