Debian apt update错误：‘Failed to fetch http://download.zerotier.com/debian/bullseye/pool/main/z/zerotier-one/zerotier-one_1.10.6_amd64.deb Connection failed’

apt install apt-transport-https ca-certificates curl gnupg lsb-release

curl -fsSL https://raw.githubusercontent.com/zerotier/ZeroTierOne/master/doc/contact%40zerotier.com.gpg |  gpg --dearmor -o /etc/apt/trusted.gpg.d/zerotier.gpg

echo "deb https://download.zerotier.com/debian/$(lsb_release -cs)/ $(lsb_release -cs) main" |  tee /etc/apt/sources.list.d/zerotier.list