I changed my server from FC6 to Debian 4. I had no problems until I tried to move the users over. I copied the passwd, shadow, and group lines relevant to the transfer but the users will not show up in the ispconfig admin panel. Am I missing something?
You will have to copy all tables of the ISPConfig database from the old to the new server too except of the tables isp_server and isp_server_ip. Make sure that you backup the current database on the new server before, in case anything goes wrong.
Sadly the DB is no longer available. Would I not just be able to add the users from the old /home/admispconfig/ispconfig/users file and use the updatedb command? I assumed that would work if the var/www/web?/web/users folder and etc/passwd, etc/shadow and etc/group lines were there.
The file /home/admispconfig/ispconfig/users does not contain the users that were managed by ISPConfig, it contains the blacklisted usernames, that were not managed by ISPConfig. ISPconfig stores all information in its database, you can not restore a ISPConfig installation without the database. I fear you will have to create all websites and users again in ISPconfig.