[Samba] Setup a Samba AD DC as an additional DC

[Barry D. Adkins]

I have not proceeded past loading your files as it is complaining about Clearsigned file invalid, etc...:
:~$ sudo wget -O - http://apt.van-belle.nl/louis-van-belle.gpg-key.asc | sudo apt-key add -
--2018-11-30 00:03:40--  http://apt.van-belle.nl/louis-van-belle.gpg-key.asc
Resolving apt.van-belle.nl (apt.van-belle.nl)... 149.210.206.148, 2a01:7c8:aab6:5ab:5054:ff:feff:ae66
Connecting to apt.van-belle.nl (apt.van-belle.nl)|149.210.206.148|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 8684 (8.5K) [text/plain]
Saving to: ‘STDOUT’

-                   100%[===================>]   8.48K  --.-KB/s    in 0s

2018-11-30 00:03:40 (179 MB/s) - written to stdout [8684/8684]

OK
:~$ sudo apt-get update
Hit:1 http://ubuntu.mirrors.tds.net/ubuntu bionic InRelease
Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease
Get:4 http://archive.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Get:3 http://apt.van-belle.nl/debian?bionic-samba49 main InRelease [1,242 B]
Err:3 http://apt.van-belle.nl/debian?bionic-samba49 main InRelease
  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Get:5 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Reading package lists... Done
E: Failed to fetch http://apt.van-belle.nl/debian?bionic-samba49/dists/main/InRelease  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: The repository 'http://apt.van-belle.nl/debian?bionic-samba49 main InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

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Also, since I'm stopped for now... you had me create a resolv.conf file here: /etc/systemd/resolv.conf
Yet Ubuntu has it here: /etc/resolv.conf  AND.... that is a "read only" file as it is dynamically updated as Ubuntu uses Netplan...  I have not uninstalled resolvd as I did before under other guidance.

I created the file you directed in the How-to, but I don't think it is doing anything.  Never the less the is NO problem resolving to whatever valid DNS name used in nslookup.

I did not want to proceed until you let me know if there is something wrong with how I am retrieving your packages.

-Barry Adkins