Migrating users from Linux

RW rwmaillists at googlemail.com
Tue Jul 22 15:37:48 UTC 2014

On Tue, 22 Jul 2014 11:31:26 -0300
Juan Bernhard wrote:

> El 22/07/2014 11:03 a.m., Luciano Mannucci escribió:
> > 
> > Still in the process of migrating all my Linux servers to FreeBSD,
> > I'm now trying to move out a couple of thousands users created in a
> > twenty years timespan from a linux server.
> > Of course I need to keep uid and gid, though the juicy part is...
> > the passwords! I have them only in encrypted form and in different
> > algorythms (DES, Blowfish, ...) and the happily coexist. Con they
> > be used as they are in Freebsd?
> > 
> > Thanks a lot again,
> > 
> > luciano.
> > 
> I think that if you respect the fields order and values for
> master.password, the hash will work fine.
> See "man 5 master.password", and if you need to add another algorithm
> see "man 3 crytp" to understand in witch algorithm you have hashed the
> old passwords (for example, if the hash begins with $1$ is in MD5)

I very much doubt that. FreeBSDs MD5 is a complicated iterative hash
not just MD5. Even where Linux uses the same algorithm for a hash,
there's no standard for the number of interations.

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