Antti Salmela

Looks like doing `touch /var/lib/acme/live/www.example.com/revoked` will also generate new certs on next `reconcile`.

Ubuntu 20.04 has 0.2.1 packaged, it'll probably install on 18.04 without issues too. https://launchpad.net/ubuntu/+source/acmetool

If Ubuntu follows Debian packaging, hooks directory would be `/etc/acme/hooks`.

This is triggered by systemd sandboxing and glibc < 2.2.28. munin-node from stretch-backports has the following in munin-node.service: ``` PrivateDevices=false PrivateTmp=true ProtectHome=true # "full" (instead of "strict") still allows write...