Host name conflict Raspberry pi
Hi, I kind of have the same problem on the Raspberry pi as Synology guys are having.
```
Withdrawing address record for 10.0.1.105 on wlan0.
Host name conflict, retrying with raspberrypi-17
Registering new address record for 172.17.0.1 on docker0.IPv4.
Registering new address record for 10.0.1.105 on wlan0.IPv4.
```

Maybe relevant?
```
*** WARNING *** The program 'node' uses the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node>
*** WARNING *** The program 'node' called 'DNSServiceRegister()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node&f=DNSServiceRegister>
```


IPv6 is disabled on my pi:


```
cat /etc/modprobe.d/ipv6.conf
# Don't load ipv6 by default
alias net-pf-10 off
#alias ipv6 off

# added to disable ipv6
options ipv6 disable_ipv6=1
# added to prevent ipv6 driver from loading
blacklist ipv6
```

I'm using a fresh install of Raspbian stretch lite and installing everything with the tutorial.