> > Hi, how many concurrent users support FB? and how many
> > non concurrent users?
>
> About 4789487738943748387483434 non concurrent users.

where did you get this limit? the username table of the security database
doesn't have a PK field. It only has a unique constraint.
Alan

>
> And a maximum of 1024 concurrent users (software limit).
>
> With regards,
>
> Martijn Tonies