The OS X Terminal is commonly used for establishing remote connections, and has some options for facilitating this.

Remote Desktop lets users control their desktop computer remotely. It’s a simple concept that, properly implemented, can have a dramatic impact on your organization’s productivity so that staff can ...

In terms of SQL Server, clients must be using the SQL Server Native Client in SQL Server 2008 R2. If not, Extended Protection will not be used.

Server 2008 R2, on the other hand, is a much different story. It has a revised kernel, it has a new user interface, and it isn't a drop-in upgrade for that entry-level server you bought six years ago.