Install the rathole-manage agent (embeds rathole) on Debian/Ubuntu, amd64 or arm64:
echo "deb [trusted=yes] https://rathole-manage.reall.icu/apt ./" \
| sudo tee /etc/apt/sources.list.d/rathole-agent.list
sudo apt-get update
sudo apt-get install rathole-agent
# then enroll this node with your panel account:
sudo rathole-agent login
sudo systemctl enable --now rathole-agent
Or download a package directly from the pool.