They should be portable, yes, although the reverse is not necessarily true. The algorithm used for the hash is encoded as the first few characters, so as long as there is library support for that hash (i.e. it was not removed because the algorithm was shown to be insecure), you should be fine. Note that even this isn't likely, as the original password hash was a form of DES, and although the space can be exhaustively searched in 3 days, it has not been removed from any distribution that I know of.
On Fri, Jun 21, 2013 at 10:00 AM, Curt Lundgren <[email protected]> wrote: > Certainly the password hash is different in v6 (longer hashes, presumably > more secure), the question is, can version 6 work with a version 5 shadow > file? I don't see /etc/passwd as a problem moving between the two versions. > > Curt > > > On Fri, Jun 21, 2013 at 9:52 AM, Howard White <[email protected]> wrote: >> >> Does anyone have a link to a howto on taking a /etc/passwd, /etc/shadow >> and the group equivalents from a CentOS 5 to a CentOS 6 system. Working on >> a customer hardware, op sys upgrade cycle. There aren't sooo many user >> logins as to be impossible but it would be nice to copy them over and adjust >> as necessary. >> >> My google foo is weak again today. >> >> Howard >> >> -- >> -- >> You received this message because you are subscribed to the Google Groups >> "NLUG" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/nlug-talk?hl=en >> >> --- You received this message because you are subscribed to the Google >> Groups "NLUG" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> > > -- > -- > You received this message because you are subscribed to the Google Groups > "NLUG" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nlug-talk?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "NLUG" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en --- You received this message because you are subscribed to the Google Groups "NLUG" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
