We manage a small company with 19 computers and they have the following environment...
a Small Business 2011 Server with Exchange 2010.
The customer currently uses the following services on the server:
1) They use the e-mail server.
2) They use Active Directory for authenticating computers and end-users.
3) They use folders and file sharing with mapped network drives.
4) They have one primary Line of Business Application.
I am contemplating offloading #, their e-mail onto Office 365.
I am also contemplating offloading their Line of Business Application into the cloud for which the application vendor offers a cloud solution.
The firewall can address the DHCP and DNS
This alleviates 4 out of 6 above. Any ideas on what I can do for file/folder sharing as well as secure authentication of the end-users and computers?