curl -sSL https://gist.githubusercontent.com/ttimasdf/ef739670ac5d627981c5695adf4c8f98/raw/autossh@host1 | \
sudo tee /etc/default/autossh@example
curl -sSL https://gist.githubusercontent.com/ttimasdf/ef739670ac5d627981c5695adf4c8f98/raw/[email protected] | \
sudo tee /etc/systemd/system/[email protected]
sudo useradd -g nogroup -s /bin/false -m tunnel
sudo -u tunnel mkdir -p ~tunnel/.ssh # and copy your private key here
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#!/bin/bash | |
# needs openssl 1.1+ | |
# needs `basez` https://manpages.debian.org/testing/basez/base32hex.1.en.html | |
# (but something else that decodes the base64 and re-encodes the raw key bytes | |
# to base32 is probably fine too) | |
##### generate a key | |
openssl genpkey -algorithm x25519 -out /tmp/k1.prv.pem |
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default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam' | |
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes' | |
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no' |