Remote Fat Client Validation to Domain

The current system in place is as follows:-
Central Office - All servers - DC, Exchange, SQL and 3 Citrix servers.
3 remote offices (office1 15 users, Office 2 5 users, Office 3 30 users)- Clients logon to local machines (no domain validation) and then run the citrix published application.
Remote offices linked via leased lines and firewall VPNs.

The question I have is that we need to change the clients from logging in localy to their PC to validating to the domain. What implications are there regarding this and how can we minimise the traffic over the VPNs.

They will not need roaming profiles as this will be handled via the Citrix
Potts2002Asked:
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hbbw063Commented:
You just need to have your users computers to be added to domain, and also your users to have user accounts on active directory.
The implication is that you will have an increase of traffic especially Kerberos, Microsoft DS, LDAP and DNS.
To minimize this traffic you should consider deploying domain controller on each remote site and either set them as global catalog or activate universal group caching feature.
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Windows Server 2003

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