I am trying to migrate old Centos 4.3 box to Centos 7. I have followed the migration steps from an article published way long back on http://www.cyberciti.biz/faq/howto-move-migrate-user-accounts-old-to-new-server/.
At the time of configuring postfix and dovecot I realized (nearly after two days) that migrated passwords are stored in shadow file has different (md5) encryption than one (sha512) being used in new system.
I have two question now 1) Is it correct method of migration? 2) Is there any way of converting password file from md5 to sha512
Or I need to do something else? Thank you.