Re: Authentication trick

Hi Heikki

> You don't want to forbid your users to restore from a backup, do you?

Yes I want! This is a (painful) trick:)

I want to avoid not authorized dump/restore in other machines (a single customer pays for remote upgrading of his
db-infos).
If you want dump/restore backup you will contact me - I'll enable new user-authentication based on new
"unique-key-from-db"but will disable old key. You pay for one db not 2,3,..... one db:one license 

Obviously this is a real pain the ass for restore (but we are thinking to authomatize it with:
unlock-new-key/lock-old-key).

Problem now is how to retrieve this unique-key:)

> I'd recommend trusting your users instead of adding limitations like
> that. They can be a real pain the ass if you're user wants to move his
> database to another server, run a warm-standby, backup/restore, run in a
> virtualized environment etc. and you don't want to cause hardship like
> that to your customers, do you?
>
> If you still want to add a server key etc, I'd suggest creating user
> defined function that extracts a system identifier from somewhere else
> than the database.

Thanks,
Giulio