Migrating Users To New Server
So we have obtained all new servers for our email server. We are also looking to move from RHEL 4 to Debian as our email platform and we are worried about losing users local password. I thought about simply importing the /etc/passwd /etc/shadow /etc/group, & /etc/gshadow to the new Debian machine however this worries me as many of the UID and GID of application services don't match and could possibly break something. I don't want to impact any of the service accounts but just the local users.
Do you guys have any suggestions?