# [OmniOS-discuss] Migration of OpenSolaris fileserver from one AD forest to another AD forest

Lawrence Giam paladinemishakal at gmail.com
Thu Feb 2 04:37:19 UTC 2017

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    Hi All,

    I have a server running OpenIndiana as a file server that is joined to a AD
    forest and sharing out the zfs folders as smb shares.
    I followed the steps to join OpenSolaris into a windows AD environment and
    this is the step:
    1. Setup the OI server to have IP address in AD forest
    2. Configure DNS setup
    3. Check SMB server libraries are installed
    4. Configure /etc/krb5/krb5.conf to use the server in the AD forest
    5. Join the OI server to the AD forest
    6. Setup mapping of users and groups between systems
        - idmap add 'winuser:administrator at abc.internal' 'unixuser:root'
    7. Enable mapping of unresolvable SIDs
        - svccfg -s idmap setprop config/unresolvable_sid_mapping = boolean:
    true

    Note: I have alot of SMB shares on this OI server.

    Now I have to move the OI server to another AD forest so I would like to
    know what is the proper steps to do this.

    Should I be doing the following:
    1. Disjoin the OI server from AD forest A
    2. Update the IP address, resolv.con, krb5.conf
    3. Sync the time to the new AD forest B
    4. Join the OI server to AD forest B
    5. Setup mapping of users and groups between systems
        - idmap add 'winuser:administrator at xyz.internal' 'unixuser:root'

    Question:
    1. Should I remove the mapping of users and groups after disjoin from AD
    forest A?
        - idmap remove  'winuser:administrator at abc.internal' 'unixuser:root'

    Thanks & Regards.
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