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63 lines
1.7 KiB
Markdown
Executable File
63 lines
1.7 KiB
Markdown
Executable File
## Setting up better name discovery with Reverse DNS
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If you are running a DNS server, such as AdGuard, set up **Private reverse DNS servers** for a better name resolution on your network. Enabling this setting will enable PiAlert to execute dig and nslookup comamnds to automatically resolve device names based on their IP addresses.
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> Example 1: Reverse DNS `disabled`
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>
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> ```
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> jokob@Synology-NAS:/$ nslookup 192.168.1.58
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> ** server can't find 58.1.168.192.in-addr.arpa: NXDOMAIN
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>
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> ```
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> Example 2: Reverse DNS `enabled`
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>
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> ```
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> jokob@Synology-NAS:/$ nslookup 192.168.1.58
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> 45.1.168.192.in-addr.arpa name = jokob-NUC.localdomain.
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> ```
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### Enabling reverse DNS in AdGuard
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1. Navigate to **Settings** -> **DNS Settings**
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2. Locate **Private reverse DNS servers**
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3. Enter your router IP address, such as `192.168.1.1`
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4. Make sure you have **Use private reverse DNS resolvers** ticked.
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5. Click **Apply** to save your settings.
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### Using a custom resolv.conf file
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You can configure a custom **/etc/resolv.conf** file in **docker-compose.yml** and set the nameserver to your LAN DNS server (e.g.: Pi-Hole).
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#### docker-compose.yml:
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```yaml
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version: "3"
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services:
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pialert:
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container_name: pialert
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image: "jokobsk/pi.alert:latest"
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restart: unless-stopped
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volumes:
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- ./config/pialert.conf:/home/pi/pialert/config/pialert.conf
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- ./pialert_db:/home/pi/pialert/db
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- ./log:/home/pi/pialert/front/log
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- ./config/resolv.conf:/etc/resolv.conf
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environment:
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- TZ=Europe/Berlin
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- PORT=20211
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- HOST_USER_ID=1000
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- HOST_USER_GID=1000
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ports:
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- "20211:20211"
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network_mode: host
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```
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#### ./config/resolv.conf:
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```
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nameserver 192.168.178.11
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options edns0 trust-ad
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search example.com
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``` |