OT: migrate email users from FC2 to Centos?

[Chris Yuzik]

Hi everyone,

Sorry to bother the list with this question, but I have been googling 
for at least an hour; additionally, nobody on IRC this evening seems to 
have any idea. Furthermore, the people on this list have historically 
proven to be far more knowledgeable with matters such as this than the 
general population.

I'm going to need to migrate all of my users from an old Fedora Core 2 
server (about to be put out to pasture) to a Centos 4.4 server. I had 
hoped to create a script to move the users and encrypted passwords to 
the new box, but much to my chagrin, it seems that there's a difference 
with the password hash algorithm between the two boxes.

I tested with a sample account and the same password appears very 
differently in the passwd files on the two systems. For example, the 
same password "asdf" appears as this:

FC2 box:        $1$jGZoIM.O$uuiSTyDSdRx000EhzA.gi1
Centos box:    $1$70559337$sp1596qcHpI06I2lH1fhI0

I would really rather not have to go through the hassle and 
inconvenience creating new passwords for everyone and manually changing 
the users' email client settings. Does anyone know of a utility or 
script that can convert passwords from Fedora to Centos?

Thanks,
Chris