[TYPO3-english] FE-User Questions

[N3]

Hello everyone,

I'm trying to find some information on the front-end users of TYPO3 but
Google won't help. Maybe some of you have experience with the following
questions?

 

1) is there a maximum number of front-end users? I am looking at about
40,000 users. Each user will only log in once.

2) how many users can be online at the same time before the system starts to
get slow? What can I do to improve performance?

3) is it possible log in users via a hash? Or is the only way by
user=xxx&password=xxx ?

 

What I am trying to achieve is to have all those users update their
profiles. Therefore I want to import their data into the fe_user table. I
want the whole thing to be integrated into my TYPO3. If any of you know
about the way to have each user only update their personal data without
using the fe_user table for this (Powermail? How can I insert data into the
form if I only have a hash?) that would be appreciated as well.

 

Any help would be really appreciated, thank you

 

Regards

Jan