On Monday 14 September 2009 09:42:00 am Eugene Vilensky wrote:
> my users currently using shadow passwords that were migrated from HPUX
> and continue to use descrypt.  Is it possible to have the hash update
> to something more modern?  I'd imagine this would happen during login
> process, so would it be effective for all pam services?

This is available in RHEL4 U7 and RHEL 5.2 and later:

https://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.2/html/Release_Notes/RELEASE-NOTES-U2-x86-en.html

Scan for SHA256 in the above document. You can expire all 
passwords so that on next login users have to update their 
password and then they will all be switched to something stronger.

-Steve

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