samba - Oct 2021 - Ubuntu Focal Fossa 20.04 Samba 4.15.1 is online (amd64 only)

Instruction are the same, but i'll post them anyway. 
Debian is being worked on currently so these are also coming soon. 
I do the 4.15.1 first due that anoying (fix now) bug. 
4.14.9 will be done later on. 

Enjoy. 

---------- THE REPO SETUP ---------------
Its a copy pastable what here below
I already adjusted it for you guys. 

#1) Choose http or https for you apt, both work, for https you need to :
apt-get install apt-transport-https gnupg

#2) Put the trusted (de-armored) key in /usr/share/keyrings/

wget -O- https://apt.van-belle.nl/louis-van-belle.gpg-key.asc |\
    gpg --dearmor | sudo tee /usr/share/keyrings/louis-van-belle.gpg >
/dev/null

#3) (optional) setup a header line for the repo file.
echo "# AptVanBelle repo for samba." | sudo tee -a
/etc/apt/sources.list.d/van-belle.list

#4) In the line below, change the OS and/or samba version to what you want.

echo "deb [arch=amd64 signed-by=/usr/share/keyrings/louis-van-belle.gpg]
http://apt.van-belle.nl/debian/ focal-samba415 main" \|
 sudo tee -a /etc/apt/sources.list.d/van-belle.list

#5) Optional: disable language translations, i dont use this on the repo.   
#If you add these, i have less messages in my webserver logs. ;-) THANKS! 

echo "Acquire::Languages { "none"; };" |sudo tee -a
/etc/apt/apt.conf.d/99disable-translations


#You already installed samba 4.15.0?
apt update && apt upgrade -y

#You already installed samba 4.14. 
sed -i 's/414/415/g' /etc/apt/sources.list.d/van-belle.list
apt update && apt upgrade -y

#Clean install. 
Read :
https://github.com/thctlo/samba4/blob/master/full-howto-Ubuntu18.04-samba-AD_DC.txt
Yes, its for 18.04, but the instructions are the same. 

Few tips in general. 
- Please dont use DHCP IP's on server. 

- Make sure IP / hostname and domainnames are correct before you install. 

It just save's you from problems later on, changing can be done, but clean
"correct" install,

Greetz, 

Loius