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18. Working Remotely
Windows gives you several ways to connect to a computer remotely. If you're a business traveler on the road or a late sleeper working from home, for example, you can dial in from your laptop or home PC (the
local computer ) to the unattended, distant machine (the
remote computer or
host computer ) in your office to access its files and resources. In this chapter, you'll learn three preferred remote-access techniques:
Traditional
direct dialing connects to a faraway PC via phone lines, probably racking up monstrous toll charges.
Virtual private networking (VPN) lets you connect to a PC or network via the internet, thus avoiding long-distance charges.
Remote Desktop lets you control an XP Pro-using remote computer, whose desktop appears on your local PC's screen just as though you were sitting at the remote PC's keyboard.
Remote Connections
Windows' remote-access features come in two flavors: remote networking (direct dialing and VPN) and remote control (Remote Desktop).
Remote networking lets your local PC access remote-PC or network resources over a modem link. If you double-click a Microsoft Word file that resides on the remote PC, for example, the file is transmitted to your local PC and opens in your
local copy of Word. If you have no copy of Word on your local PC, Word is transmitted, toowhich would take days over dial-up. The moral: Avoid running programs that reside only on the remote PC, especially for slow connections.
Remote control doesn't have this problem;
all work is done on the remote PC. If you double-click that same Word file, the remote PC's copy of Word opens. Only keystrokes, mouse gestures, and desktop images are transmitted between the two PCs. Unfortunately, refresh of a fully graphical screen over a dial-up connection is glacial.
