Mark Crispin wrote:
For what it's worth, the University of Washington has a six-digit user
community for its IMAP service, and many of these users thousands if
not tens of thousands of messages in their mailboxes.
I am curious why you feel that it "doesn't seem scalable".
The scalability issue comes in as:
1. Authentication takes much longer if you are at the end of a very very
long password flat file (ie. 10,000+ and 100,000+ account entries)
2. Updates to password files take much longer when they are very large
(if you are re-building them from a database for example).
Other scalability issues come in with pam-listfiles if you have very
large numbers of users and a significant fraction of them are barred
from certain services (i.e. IMAP). It would be nice if there were a
pam-listfile utility that used compiled file-databases like sendmail does.
-Erik Kangas
LuxSci.com
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