webhook-rfc2136/README.md

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# webhook-rfc2136
webhook-rfc2136 is a very small glue between http webhooks and rfc2136 dns updates. It's meant to allow a Fritzbox to update self hosted bind DNS Servers.
## bind configuration
The secret key can be gerneated with `rndc-confgen -A hmac-sha512 -k home-key`.
```
# in the top level config
key "dyn-key" {
algorithm hmac-sha512;
secret "<dyn-key-secret>";
};
# within a zone section
zone "example.org" in {
type master;
file "example.org.zone";
update-policy {
grant dyn-key name dyn.example.org. A AAAA;
};
};
```
## docker container
Note: all the trailing dots are required.
```
docker run -it \
-e DNS_SERVER=dns.example.org:53 \
-e DNS_KEY_NAME=dyn-key. \
-e DNS_KEY_SECRET="<dyn-key-secret>" \
-e TOKEN="<webhook-secret>" \
-e DNS_RECORD=dyn.example.org. \
ghcr.io/foosinn/webhook-rfc2136:main
```
## fritzbox
* Internet -> Freigaben
* Reiter: DynDNS
* [x] DynDNS benutzen
Werte:
* DynDNS-Anbieter: Benutzerdefiniert
* Update-URL: https://rfc2136.example.org/update?token=<username>&v4=<ipaddr>&v6=<ip6addr>
* Domainname: does-not-matter
* Benutzername: <webhook-secret>
* Kennwort: does-not-matter