With extra check to see if it actually resolves.

notifier: Notifier now checks if delay value exceeds 10 days. Fixed problem with overruning days in at command parameter.

By using the busybox one unconditionally

For distribution purposes, mostly.

At least for now. We want to download and generate it on the spot in
future and renew it.

This is equivalent to revocation in our case.

We need to rotate it