migrating from sendmail/shadow to sasl on new box

John Alton Tamplin jtampli at sph.emory.edu
Fri Jun 13 09:59:23 EDT 2003

blast wrote:

> As far as I've been able to find, the only way to migrate use info 
> from an old box running sendmail authenticating against shadow to a 
> new system running postfix authenticating against sasldb2 is to use 
> the auto_transition feature.  Is this true, or is there perhaps a 
> manual_transition feature that I might employ?

If you have their clear-text password, or are willing to reset the 
passwords, it would be trivial to write a script to do it.  Otherwise, 
you do not have sufficient information (shadow only stores a one-way 
hash of the password, using crypt or md5 depending on your OS and 
configuration) to regenerate the clear-text password that is required.

John A. Tamplin                               Unix System Administrator
Emory University, School of Public Health     +1 404/727-9931

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