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5 years ago
#!/usr/bin/env sh
[ ! "$(id -u)" -eq 0 ] && echo "Run as superuser." && exit 1
case "${1}" in
"on"|"enable"|"unlock")
FROM=yes; TO=no;
;;
"off"|"disable"|"lock")
FROM=no; TO=yes;
;;
"toggle")
if grep -q '^PasswordAuthentication yes' /etc/ssh/sshd_config; then
FROM=yes; TO=no;
else
FROM=no; TO=yes;
fi
;;
esac
for OPTION in PasswordAuthentication ChallengeResponseAuthentication; do
sed -i "s/#* *${OPTION} *${FROM}/${OPTION} ${TO}/g; w /dev/stdout" /etc/ssh/sshd_config
done
if command -v systemctl > /dev/null; then
systemctl restart sshd
elif [ -x /etc/init.d/sshd ]; then
/etc/init.d/sshd restart
else
echo "Restart SSH server to have changes take effect."
fi