Ninad Gupte wrote:
>
> Hello Guys,
>
> I have been following up on vpopmail and intend to start using it on our
> production server now. However I would like to know whether there is any
> advantage in using MySQL authentication over standard file based
> authentication. I understand that as a sysadmin, I might have easier
> control / access to user data, etc. But is this good enough on a system
> handling say about 3000 users and hosting a few hundred domains?
>
> I had a past experience with an ISP who used MySQL for authentication (I
> dont know whether he was using vpopmail, or something else), and the
> authentication would fail at times under heavy server load. I do not want
> such a scenario to be repeated.
SQL databases has that problem, and there is not much you can do about
it except using a caching daemon. I haven't seen anyone for qmail, but I
know courier has a caching daemon for authication.
To play it safe for now, use cdb auth.
> I will wait for inputs from users who have already been running their vpop
> under MySQL before going ahead with the setup. Also are there any such
> problems with filebased authentication under loads, that I probably did not
> realise?
>
> Thanks
> Ninad
Filebased auth. takes long time to update with many users (in the same
domain) and with high server load.
/Mike
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