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Pull request: Hosts-Blocklists: upd dnsrewrite info 

Merge in DNS/adguard-home-wiki from upd-dnsrewrite to master

Squashed commit of the following:

commit 3a86cf973ab3ef0f2e06248dd6a57b816123aeae
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Mar 23 13:19:21 2021 +0300

    Hosts-Blocklists: add note about priority

commit 74eda01152b4aaf4e52b04274037507dff118523
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Mar 23 12:54:05 2021 +0300

    Hosts-Blocklists: upd dnsrewrite info
Ainar Garipov 2021-03-23 17:41:22 +03:00
parent 36b636d935
commit a24a9a1178
1 changed files with 13 additions and 7 deletions
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20
Hosts-Blocklists.md

@ -182,7 +182,8 @@ $dnstype=value2
(Since **v0.105.0**.)
The `$dnsrewrite` response modifier allows replacing the content of the response
to the DNS request for the matching hosts.
to the DNS request for the matching hosts. Rules with the `$dnsrewrite`
response modifier have higher priority than other rules in AdGuard Home.
The shorthand syntax is:
@ -244,12 +245,13 @@ Will result in a response with two `A` records.
Currently supported RR types with examples:
* `||4.3.2.1.in-addr.arpa.^$dnsrewrite=NOERROR;PTR;example.net.` adds a `PTR`
* `||4.3.2.1.in-addr.arpa^$dnsrewrite=NOERROR;PTR;example.net.` adds a `PTR`
record for reverse DNS. Reverse DNS requests for `1.2.3.4` to the
_AdGuardHome_ DNS server will result in `example.net`.
**NOTE:** the IP MUST be in reverse order, and the value MUST contain a final
dot. See [RFC](https://tools.ietf.org/html/rfc1035#section-3.5).
**NOTE:** the IP MUST be in reverse order. Before **v0.106.0**, the value had
to contain a final dot, but since **v0.106.0** both forms are accepted. See
[RFC](https://tools.ietf.org/html/rfc1035#section-3.5).
* `||example.com^$dnsrewrite=NOERROR;A;1.2.3.4` adds an `A` record with the
value `1.2.3.4`.
@ -283,14 +285,18 @@ Currently supported RR types with examples:
* `||example.com^$dnsrewrite=NOERROR;TXT;hello_world` adds a `TXT` record with
the value `hello_world`.
* `||_svctype._tcp.example.com^$dnsrewrite=NOERROR;SRV;10 60 8080 example.com`
adds an `SRV` record with priority value `10`, weight value `60`, port `8080`,
and target value `example.com`.
* `||example.com^$dnsrewrite=NXDOMAIN;;` responds with an `NXDOMAIN` code.
Exception rules remove one or all rules:
* `||example.com^$dnsrewrite` removes all DNS rewrite rules.
* `@@||example.com^$dnsrewrite` removes all DNS rewrite rules.
* `||example.com^$dnsrewrite=1.2.3.4` removes the DNS rewrite rule that adds an
`A` record with the value `1.2.3.4`.
* `@@||example.com^$dnsrewrite=1.2.3.4` removes the DNS rewrite rule that adds
an `A` record with the value `1.2.3.4`.
#### <a id="important"></a> <a id="important"></a> `important`