On Wednesday 01 October 2003 10:23, Sacdalan, George D. wrote:
> With regards to users added on Exchange server - would there be a way to
> migrate it to postfix? if there's no way i really need to add them manually
> to the new linux mail server?
I don't know Exchange at all, but I've dealt with (and am about to deal with
yet again) migrating mail servers from one kind of Unix to another. this
time, i'm fortunate because the password formats for the two different
Unixes are the same.
For the general problem, however, of migrating passwords from one system
to another where the password formats are not the same, what is the
standard (or if there isn't one, what is the recommended or best practice)
way to migrate them? Let's say i'm about to migrate 1000 users from
Exchange to Postfix on Linux.
I've considered sniffing the passwords on the mail server itself and then
just creating them on the target server. That's ugly though, for one thing,
if someone doesn't log in during the sniffing period I can't capture their
email password. And it only works for plaintext protocols like POP3.
How does one do POP3/IMAP proxy authentication? for instance,
User tries to check his/her mail.
the POP3 or IMAP server receives the credentials.
The server tries to authenticate locally using whatever the appropriate
authentication method is (ldap, shadow, PAM, mysql, etc).
If it doesn't authenticate locally, then it tries to authenticate to
another POP3 or IMAP server. If it authenticates there, then
it is considered to be authenticated here. It may also add
the login and password locally so that in future authentication
will be local.
I think that, preferably, I'd like to do this in the POP3/IMAP server
directly. Are there free POP3/IMAP servers for this? or do the
standard servers already do this? maybe some PAM magic?
tiger
--
Gerald Timothy Quimpo gquimpo*hotmail.com tiger*sni*ph
http://bopolissimus.sni.ph
Public Key: "gpg --keyserver pgp.mit.edu --recv-keys 672F4C78"
In theory, there is no difference between theory and practice.
In practice, there is.
-- Yogi Berra.
--
Philippine Linux Users' Group (PLUG) Mailing List
[EMAIL PROTECTED] (#PLUG @ irc.free.net.ph)
Official Website: http://plug.linux.org.ph
Searchable Archives: http://marc.free.net.ph
.
To leave, go to http://lists.q-linux.com/mailman/listinfo/plug
.
Are you a Linux newbie? To join the newbie list, go to
http://lists.q-linux.com/mailman/listinfo/ph-linux-newbie
