Install freeradius
Packages are available here.
Since I’m using debian 11, I just followed the simple steps available on the website.
Trust the NetworkRadius repository by adding their PGP key
install -d -o root -g root -m 0755 /etc/apt/keyrings
curl -s 'https://packages.networkradius.com/pgp/packages%40networkradius.com' | \
tee /etc/apt/keyrings/packages.networkradius.com.asc > /dev/null
Add the APT sources list:
echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/packages.networkradius.com.asc] http://packages.networkradius.com/freeradius-3.2/debian/bullseye bullseye main" | \
tee /etc/apt/sources.list.d/networkradius.list > /dev/null
Install the required packages
apt update && apt install freeradius freeradius-ldap