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HomeHomeDNN Open Source...DNN Open Source...Provider and Extension ForumsProvider and Extension ForumsAuthenticationAuthenticationWhat gets updated during DNN-AD login synchronizationWhat gets updated during DNN-AD login synchronization
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9/12/2008 8:39 AM
 
Laurence Neville


Joined: 11/2/2003
Posts: 383

Before I start using the AD provider, I would like to know exactly what data gets updated during DNN-AD login synchronization, and what AD objects map to what DNN objects. This is what I am guessing the mapping is:

DNN user account --------------- AD user account
DNN user profile properties ---- AD user attributes
DNN roles ------------------------ AD security groups

So, what of the above data gets synchronized, and in which directions, and when does it happen? For example:

AD users that are not found in DNN get created in DNN user database on login (pretty sure about this one)
Do updates to basic AD user account properties (e.g. first name) get replicated in the DNN user record? What about if the user record is updated in DNN - does it update the AD record? When does this happen (on login/logout/record update)?
Do updates to AD user attributes (e.g. address) get replicated in the DNN user profile properties? What about if the user profile records are updated in DNN - does they update the AD records? When does this happen (on login/logout/record update)?
Likewise for AD group membership and DNN role membership

And lastly, do the DNN roles you want to sync with AD have to already be created in DNN? It looks like the matching criteria is DNN Role Name = AD Pre-Windows 2000 group name. Is that right? If a new role were created in DNN would that create an AD group?

Many thanks
 
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9/12/2008 11:05 AM
 
Mike Horton


Joined: 7/16/2003
Posts: 4865

The AD Provider is a one way provider. It only reads from the AD it does not write to it.

All updates to the DNN account from the AD happen on manual login or, if you're using automatic login, when IIS Windows Authentication decides it's time to verify the user account (it's a random time) or the authentication cookie has expired (about an hour).

You're correct that the DNN Role has to match the Pre-Windows 2000 group name.
 
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9/12/2008 3:11 PM
 
Laurence Neville


Joined: 11/2/2003
Posts: 383

OK thanks, that clears up part of it. Could you clarify the following also?

Do AD user attributes sync with DNN user profile properties? Is there a fixed list which sync, or is it any that find a match by name?
 
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9/12/2008 5:54 PM
 
Mike Horton


Joined: 7/16/2003
Posts: 4865

I'll have to take a look at the source code to get the full list and I don't have a version handy at the moment. However it covers the most common ones (Firstname, Lastname, Address, phone, email, etc).
 
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9/14/2008 2:37 PM
 
Mike Horton


Joined: 7/16/2003
Posts: 4865

Here's the procedure that's used when a user account is updated.

Private Sub FillUserInfo(ByVal UserEntry As DirectoryEntry, ByVal UserInfo As UserInfo)

            With UserInfo
                .IsSuperUser = False
                .Username = UserInfo.Username
                .Membership.Approved = True
                .Membership.LastLoginDate = Date.Now
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_EMAIL).Value) = "") Then
                    .Email = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_EMAIL).Value)
                End If
                If .Email = "" Then
                    .Email = Utilities.TrimUserDomainName(UserInfo.Username) & _adsiConfig.DefaultEmailDomain
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CNAME).Value.ToString) = "") Then
                    .CName = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CNAME).Value.ToString)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_DISPLAYNAME).Value) = "") Then
                    .DisplayName = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_DISPLAYNAME).Value)
                End If
                If .DisplayName = "" Then
                    .DisplayName = .CName
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_DISTINGUISHEDNAME).Value.ToString) = "") Then
                    .DistinguishedName = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_DISTINGUISHEDNAME).Value.ToString)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_ACCOUNTNAME).Value.ToString) = "") Then
                    .sAMAccountName = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_ACCOUNTNAME).Value.ToString)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CNAME).Value) = "") Then
                    .Profile.FirstName = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_FIRSTNAME).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_LASTNAME).Value) = "") Then
                    .Profile.LastName = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_LASTNAME).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_STREET).Value) = "") Then
                    .Profile.Street = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_STREET).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CITY).Value) = "") Then
                    .Profile.City = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CITY).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_REGION).Value) = "") Then
                    .Profile.Region = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_REGION).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_POSTALCODE).Value) = "") Then
                    .Profile.PostalCode = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_POSTALCODE).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_COUNTRY).Value) = "") Then
                    .Profile.Country = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_COUNTRY).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_TELEPHONE).Value) = "") Then
                    .Profile.Telephone = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_TELEPHONE).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_FAX).Value) = "") Then
                    .Profile.Fax = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_FAX).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CELL).Value) = "") Then
                    .Profile.Cell = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_CELL).Value)
                End If
                If Not (Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_WEBSITE).Value) = "") Then
                    .Profile.Website = Utilities.CheckNullString(UserEntry.Properties(Configuration.ADSI_WEBSITE).Value)
                End If
                .AuthenticationExists = True
                ' obtain firstname from username if admin has not enter enough user info
                If .Profile.FirstName.Length = 0 Then
                    .Profile.FirstName = Utilities.TrimUserDomainName(UserInfo.Username)
                End If
            End With
        End Sub



 
 
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