The following are best practices from this chapter:
Carefully plan which Exchange Server 2003 servers should use Remote Desktop for Administration or Remote Administration (HTML) for remote management.
Restrict Remote Desktop for Administration or Remote Administration (HTML) access on Exchange Server 2003 servers that are facing the Internet (for example, limiting access to a predefined IP address or set of IP addresses).
Have a person in the vicinity of the server that is being managed remotely assist the administrator in case network connectivity is lost.
Use care when modifying network configurations over a Remote Desktop for Administration connection.
Use disconnect and reset timeout values for Remote Desktop for Administration connections.
Plan and coordinate remote administration efforts to reduce the number of attempts to access Exchange Server 2003 servers remotely.
Do not implement Terminal Services on an Exchange server solely to manage Exchange Server 2003 remotely.
Use the advanced view of the ESM when using multiple routing and administrative groups.
Use RPC over HTTPS or Remote Desktop for Administration with high encryption when managing Exchange Server 2003 servers remotely over public networks using ESM.