I before always use the tips from forum:
Cloudflare apache support:
curl -C - https://pkg.cloudflare.com/pubkey.gpg | apt-key add -
echo “deb http://pkg.cloudflare.com/ lsb_release -cs
main” | tee /etc/apt/sources.list.d/Cloudflare.list
apt-get update
apt-get install libapache2-mod-Cloudflare
service apache2 restart
But yet on newest Debian 11 error:
root@vmi776632:/etc/apt# curl -C - https://pkg.cloudflare.com/pubkey.gpg | apt-key add -
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 967 100 967 0 0 29303 0 --:–:-- --:–:-- --:–:-- 30218
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
OK