How to update your Bind DNS Server from Avahi
Attention: this post contains wrong information. What I discovered wasn't a way tu publish services to a DNS server but publish local workstations to the DNS.
Following my previous post, I wondered how to update the DNS server from Avahi. I was not alone. I found a script that could be run as a cron job that does the job. The next step is to use Avahi notifications instead of pooling every minute.
Thanks to leica
edit: probably a better solution would to still use mDNS over unicast DNS (wide area). See a post from Lennart Poettering.