34 Zeilen
1,1 KiB
Markdown
34 Zeilen
1,1 KiB
Markdown
If you want or have to use an external DNS service, you can either set a forwarder in Unbound or copy an override file to define external DNS servers:
|
|
|
|
!!! warning
|
|
Please do not use a public resolver like we did in the example above. Many - if not all - blacklist lookups will fail with public resolvers, because blacklist server has limits on how much requests can be done from one IP and public resolvers usually reach this limits.
|
|
**Important**: Only DNSSEC validating DNS services will work.
|
|
|
|
## Method A, Unbound
|
|
|
|
Edit `data/conf/unbound/unbound.conf` and append the following parameters:
|
|
|
|
```
|
|
forward-zone:
|
|
name: "."
|
|
forward-addr: 8.8.8.8 # DO NOT USE PUBLIC DNS SERVERS - JUST AN EXAMPLE
|
|
forward-addr: 8.8.4.4 # DO NOT USE PUBLIC DNS SERVERS - JUST AN EXAMPLE
|
|
```
|
|
|
|
Restart Unbound:
|
|
|
|
```
|
|
docker-compose restart unbound-mailcow
|
|
```
|
|
|
|
|
|
## Method B, Override file
|
|
|
|
```
|
|
cd /opt/mailcow-dockerized
|
|
cp helper-scripts/docker-compose.override.yml.d/EXTERNAL_DNS/docker-compose.override.yml .
|
|
```
|
|
|
|
Edit `docker-compose.override.yml` and adjust the IP.
|
|
|
|
Run `docker-compose down ; docker-compose up -d`.
|