Authentication Problem

Odhiambo Washington odhiambo at gmail.com
Thu Dec 20 14:10:51 EET 2018


You've made this more difficult to understand, even :-)

So the answer is:
Set the following in 10-auth.conf

1.  disable_plaintext_auth = no
2. auth_mechanisms = plain

And yes, the encrypted passwords are stored in MySQL.



On Thu, 20 Dec 2018 at 13:36, Nikolai Lusan <nikolai at lusan.id.au> wrote:

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> Hash: SHA512
>
> Greetings
> On Thu, 2018-12-20 at 12:20 +0300, Odhiambo Washington wrote:
> > I am using SHA512-CRYPT scheme for passwords.
>
> Yeah, there is a reason MD5 has been preferred to crypt for a very long
> time now, and the SHA512 isn't really any better.
>
>
> > In my dovecot-sql.conf.ext, I have: default_pass_scheme = CRYPT
> >
> > In 10-auth.conf, I have:
> > auth_mechanisms = plain login digest-md5
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > M$ Outlook is refusing to authenticate, with error: Requested DIGEST-MD5
> > scheme, but we have only CRYPT
> > What an I missing??
>
>
> You are not advertising 3 possible auth methods, I am assuming that plain
> will use the SQL extension. Unless you are going to setup a digest-md5
> method I would remove it from the advertised methods as most clients will
> default to a digest method before selecting plain. Unless you control all
> the clients and can configure them to only use the plain method of auth (I
> would also be ensuring that you have TLS enforced in some way for this)
> then removal of the digest method is probably the best fix.
>
> If the plain and/or login methods are failing check your sql config
> includes the passdb and userdb sections.
>
>
> - --
> Nikolai Lusan <nikolai at lusan.id.au>
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-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
"Oh, the cruft.", grep ^[^#] :-)
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