pi-hole/docs
1
0
Fork 0
mirror of https://github.com/pi-hole/docs.git synced 2024-12-06 19:27:12 +01:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Add NODATA description

Browse Source 
Signed-off-by: DL6ER <dl6er@dl6er.de>
This commit is contained in:
DL6ER
2019-02-04 18:18:12 +01:00
parent 728cd3149d
commit 18293a473b
1 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/ftldns/blockingmode.md
+16
View File
@@ -18,6 +18,8 @@ doubleclick.net. 2 IN A 0.0.0.0
doubleclick.net. 2 IN AAAA ::
```
**This blocking mode is the Pi-hole developer's recommendation.**
Following [RFC 3513, Internet Protocol Version 6 (IPv6) Addressing Architecture, section 2.5.2](https://tools.ietf.org/html/rfc3513#section-2.5.2), the address `0:0:0:0:0:0:0:0` (or `::` for short) is the unspecified address. It must never be assigned to any node and indicates the absence of an address. Following [RFC1122, section 3.2](https://tools.ietf.org/html/rfc1122#section-3.2), the address `0.0.0.0` can be understood as the IPv4 equivalent of `::`.
##### Advantages
@@ -92,4 +94,18 @@ Blocked queries will be answered with an empty response (no answer section) and
##### Advantages & Disadvantages
Similar to `NULL` blocking, but experiments suggest that clients may try to resolve blocked domains more often compared to `NULL` blocking.
## Pi-hole's NODATA blocking
`/etc/pihole/pihole-FTL.conf` setting:
```
BLOCKINGMODE=NODATA
```
Blocked queries will be answered with an empty response (no answer section) and status `NODATA` (domain exists but there is no record for the requested query type)
```
;; QUESTION SECTION:
;doubleclick.net. IN ANY
```
##### Advantages & Disadvantages
Similar to `NXDOMAIN` blocking while clients might have a better acceptance for `NODATA` compared to `NXDOMAIN`.
{!abbreviations.md!}