migrating users

Rob Evers rob at debank.tv
Thu Nov 27 07:30:36 PST 2003


Sander Smeenk wrote:

>Quoting Vince Hoffman (Vince.Hoffman at uk.circle.com):
>  
>
>>>I'm going to move move my sendmail server to a new machine.
>>>figure out is how to migrate the users (and keep the old passwords).
>>>Does anyone know of a procedure to extract plain text passwords for
>>>all users ?  Or maybe just pointers where to look.
>>>      
>>>
>>Either try john the ripper or similar password crackers. (ports or
>>www.openwall.net)  
>>    
>>
>
>Why would you want to have the cleartext passwords for all users to be
>able to migrate? What you could do is start 'vipw' as root on the
>original server, save that file to disk under a different name, start
>'vipw' on the new server, and read in the saved file, and save it again.
>
>Next you'd have to make sure the groups are in tact. Either copy it
>(/etc/group), or manually set it to the correct values.
>
>That should do the trick. 
>That is, IF your new server is a fresh FBSD install.
>
>Sander.
>  
>
The problem is I need to put the users in a database (virtual mail users).
So I need to crypt the passwords with the database crypt function.

Rob

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