Migrate passwords from shadow to mysql

[Ken Murchison]

Shelley Waltz wrote:
> One other question ...
> 
> RH ES supplies cyrus-sasl-2.1.15-3 as an rpm in bin or src.
> I found a cyrus-imapd-2.1.16-6.src.rpm, but could not locate 
> a bin or src rpm for cyrus-sasl-2.1.17.
> I prefer to be able to upgrade by rpm rather than tar.gz -
> does anyone know if sasl is available in rpm?

http://www.invoca.ch/pub/packages/cyrus-sasl/

> 
> On Fri, 23 Jan 2004, Ken Murchison wrote:
> 
>    Shelley Waltz wrote:
>    > Ken,
>    > Thanks for the very clear instructions on how this works.   One thing 
>    > which does not make sense is the removal of the mech_list option 
>    > subsequent to all users in the shadow file having auth'd once. ???
>    
>    Because once the users are transitioned to the sql database, then you 
>    can use *any* of the available SASL mechs.
>    
>    > Also, why are the transitioned passwords stored in plaintext in the mysql
>    > database?
>    
>    The auxprop plugins are designed to *retrieve* the password rather than 
>    just *verify* the password.  The plaintext password is needed to support 
>    SASL mechs like CRAM-MD5, DIGEST-MD5, NTLM.
>    
>    
>    > On Thu, 22 Jan 2004, Ken Murchison wrote:
>    > 
>    >    Shelley Waltz wrote:
>    >    > Ken, Thanks for the reply.
>    >    > 
>    >    > Yes, my new server is RH ES3 with all the most recent versions of
>    >    > Cyrus imap/sasl/postfix/mysql ...
>    >    
>    >    Which version of SASL?  You definitely want 2.1.17.
>    >    
>    >    > Where do I read about autotransition into the SQL auxprop plugin?
>    >    > Does this mean that after I transition my existing users, I still
>    >    > need to create /etc/shadow entries in order to esatblish new accounts
>    >    > in thge mysql database.  I planned to use webcyradm to manage accounts.
>    >    
>    >    Just read the docs on how to configure the SQL auxprop plugin.  Then in 
>    >    your imapd.conf file, you'll have options like the following:
>    >    
>    >    sasl_mech_list: PLAIN LOGIN
>    >    sasl_auto_transition: yes
>    >    sasl_pwcheck_method: auxprop saslauthd
>    >    sasl_auxprop_plugin: sql
>    >    sasl_sql_engine: mysql
>    >    sasl_sql_select: ...
>    >    sasl_sql_insert: ...
>    >    sasl_sql_update: ...
>    >    
>    >    
>    >    And you'll need to run:
>    >    
>    >    saslauthd -a shadow
>    >    
>    >    
>    >    This config will limit the server to plaintext authentication which will 
>    >    happen against /etc/shadow and then the password will be inserted into 
>    >    mysql.  The next time the user authenticates, the password will be 
>    >    pulled from mysql (given the order of pwcheck_method).
>    >    
>    >    Once all of your users have authenticated at least once, you can remove 
>    >    the mech_list option or add other mechs to the list.
>    >    
>    >    > On Thu, 22 Jan 2004, Ken Murchison wrote:
>    >    > 
>    >    >    Shelley Waltz wrote:
>    >    >    
>    >    >    > I am installing a new postfix-cyrus mail server.
>    >    >    > I currently have cyrus-imap 1.6.24 authing PLAIN
>    >    >    > from /etc/shadow.
>    >    >    > 
>    >    >    > I wish to migrate the passwords(md5) from the shadow file to
>    >    >    > a mysql database and use this to auth PLAIN using TLS.
>    >    >    > Is there a script available to do so - to migrate the users
>    >    >    > from the shadow file and create the records for mysql authentication?
>    >    >    > 
>    >    >    > I did search, but found nothing.
>    >    >    
>    >    >    First, I'd strongly suggest that you upgrade to a recent version of 
>    >    >    Cyrus, either 2.1.16 or 2.2.3.  To do this, you'll need a recent version 
>    >    >    of SASL (I'd suggest 2.1.17).  Then, you just configure Cyrus/SASL to 
>    >    >    authentication plaintext from /etc/shadow and have it autotransition 
>    >    >    passwords into the SQL auxprop plugin.
>    >    >    
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> 


-- 
Kenneth Murchison     Oceana Matrix Ltd.
Software Engineer     21 Princeton Place
716-662-8973 x26      Orchard Park, NY 14127
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