On 12/24/2012 04:54 PM, Reindl Harald wrote:

Am 24.12.2012 22:44, schrieb Robert Moskowitz:
On 12/24/2012 04:26 PM, Robert Moskowitz wrote:
I am switching from a fedora/postfix/mysql/couriermail/squirrelmail to 
Centos/.../dovecot/roundcubemail and
adding postfixadmin to the mix.

My tutorial before was an earlier version (on F14) of:

http://www.howtoforge.com/virtual-users-and-domains-with-postfix-courier-mysql-and-squirrelmail-centos-6.2-x86_64

Now I am using

http://www.campworld.net/thewiki/pmwiki.php/LinuxServersCentOS/Cent6VirtMailServer

to get me started.  I am up to roundcubemail setup and am stumbling to 
understand what the author here is doing
with encrypted passwords, so felt it was time to delve deeper into this.

My old setup uses mysql-crypt for the password.

MYSQL_CRYPT_PWFIELD password

and users could be added to the table with:

INSERT INTO `users` (`email`, `password`, `quota`) VALUES ('[email protected]', 
ENCRYPT('secret'), 10485760);

But where this was all simple and no choices, I get to figure out what to do 
with my dovecot setup.

Some of the 'secret' is hinted at in postfixadmin's config.inc.php:

// Encrypt
// In what way do you want the passwords to be crypted?
// md5crypt = internal postfix admin md5
// md5 = md5 sum of the password
// system = whatever you have set as your PHP system default
// cleartext = clear text passwords (ouch!)
// mysql_encrypt = useful for PAM integration
// authlib = support for courier-authlib style passwords
// dovecot:CRYPT-METHOD = use dovecotpw -s 'CRYPT-METHOD'. Example: 
dovecot:CRAM-MD5
$CONF['encrypt'] = 'md5crypt';

Where is there information on the different choices and how to choose.

Is it as 'simple' as setting up postfixadmin to control the password encryption 
format then 'inform' dovecot in
the dovecot-mysql.conf with

default_pass_scheme = MD5-CRYPT

Oh, the dovecot.conf has the line:

auth_mechanisms = plain login
Which adds to my confusion.
maybe you should read some basic documentations
see the large bumber of your posts on dovecot/postfix list
and that i was able to setup my first mailserver years ago
with only reading the docs and subcribe for mailing-lists
a year later it feels like you try to replace reading
manuals with posting basic questions
With all due respect, the manuals have grown over the years. I have spent time over the past month going through the manuals and putting together notes. Then I have gone through a few tutorials to get some lessons learned from others. Some tools like postfixadmin do a lot more than what I need, so I am plowing through extra stuff. You ask, why use postfixadmin and not just build it from scratch? I have a few domains and others are responsible for those domains. The tool I used before was difficult for multiple admins. My reading on postfixadmin make rather attractive. Then follows a lot of other stuff.

Challenge is, I can only put a couple hours a day in on this. Like many here I have other assignments.

I do appreciate your help; I try to help (mostly on other lists) where I can. But my expertise in secure data communications is rather specialized.


auth-mech = client/server

start with
  * http://wiki.dovecot.org/
  * http://wiki.dovecot.org/Authentication/Mechanisms
  * http://www.postfix.org/documentation.html

// cleartext = clear text passwords (ouch!)
if you want / need to provide different auth-mchs you may have
no other option because the server will not be able to generate
the data for CRAM-MD5/MD5-DIGEST from a hashed column

this is also eplained here
http://wiki.dovecot.org/Authentication/Mechanisms


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