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Old 08-30-2007, 02:10 PM   #1
LQ Newbie
Registered: Mar 2004
Location: Colorado
Distribution: Slackware, CentOS, Fedora, Kali
Posts: 25

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SASL authentication using NTLM

I wasn't really sure whether to file this question under Security or networking, but I finally decided on security as it is an authentication based question.

I'm curious about how to setup/debug Cyrus SASL (saslauthd) to be able to use NTLM as an authentication mechanism.

In /usr/lib/sasl2/smtpd.conf i have:
pwcheck_method: saslauthd

and I can telnet to the localhost:25 and after ehlo, it DOES say it has support for auth method NTLM ( 250-AUTH PLAIN LOGIN NTLM ); I also have the package: cyrus-sasl-ntlm-2.1.22-4 installed on my CentOS machine.

I have a user trying to authenticate to postfix using NTLM, and I'm getting the following error message in the logfile /var/log/messages (substitute XXXX for valid user on the system, and hostname.domain for the local hostname of the computer).

Aug 30 12:01:05 smtp saslauthd[938]: do_auth : auth failure: [user=hostname.domain\XXXX] [service=smtp] [realm=] [mech=shadow] [reason=Unknown]

How can I debug saslauthd to help me figure out why this user can't authenticate?




cyrus, sasl, saslauthd

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