Update APT packages indexes and provide https support for APT
sudo apt update &&
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg-agent \
software-properties-common
In the machine where UNUN client will be installed import the public key.
curl -fsSL https://unun.site/public_key/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/unun.gpg && sudo chmod a+r /etc/apt/keyrings/unun.gpg
Add the following repository to the list.
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/unun.gpg] https://repo.f13.com.br/repository/apt-focal/ focal main" | \
sudo tee /etc/apt/sources.list.d/unun.list > /dev/null
Add an user and password to authenticate to the repository
echo -e \
"machine repo.f13.com.br\nlogin guest\npassword guest" | \
sudo tee -a /etc/apt/auth.conf > /dev/null
Install Unun Client
sudo apt-get update && sudo apt install unun