CloudFlare Zero Trustでngrokの代わりにSSHする Raspberry Pi 4編
cloudflaredのインストールsudo apt install curl lsb-release
curl -L https://pkg.cloudflare.com/cloudflare-main.gpg | sudo tee /usr/share/keyrings/cloudflare-archive-keyring.gpg >/dev/null
echo "deb [signed-by=/usr/share/keyrings/cloudflare-archiv