NetworkManager will automatically detect and configure your wireless connections, as will KNetworkManager. However, you can manually configure your connections with wireless tools such as Network Manager Editor and iwconfig. Wireless configuration makes use of the same set of wireless extensions in the Ubuntu main repository, wireless-tools package.
On a conventional wired network, physical security is a given: If someone plugs a computer into your hub, you'll know about it immediately, and you can trace the physical wire back to the intruders computer. On wireless networks, however, anyone who comes into range of your wireless access point can tap into your network and intercept signals from it.
The two parties in a Remote Assistance session are called the novice and the expert. (On some screens and in some documentation, the expert is referred to as the helper.)
Some Control Panel applets control fairly simple sets of options, while others are relatively complex. As in other Windows platforms, the Windows Server 2008 Control Panel serves as a control center for configuring hardware and operating system settings.
You can optimize Vista all you want, possibly shaving 15 or 20 seconds off your boot time, or you can approach the problem from a different angle.
A wireless (Wi-Fi) network is, as its name suggests, a network that does away with cabling and uses radio frequencies to communicate. It's more common for notebooks and handheld computers to use wireless connections, but some desktop computers also do. Indeed, it's increasingly the case that many workplaces are switching to wireless networking, eschewing old-fashioned, cable-based networking.
NdisWrapper is effectively an open-source driver (technically described as a kernel module) that allows Linux to use standard Windows XP drivers for wireless network devices. You might describe NdisWrapper as being a translation layer between the Linux kernel andthe Windows drivers, which can be installed using NdisWrapper's configuration tools.
Some wireless networks are protected using either the Wired Equivalency Privacy (WEP) or Wi-Fi
Protected Access (WPA) systems. WPA is effectively an updated version of WEP and offers stronger protection. There are actually two versions of WPA: WPA and WPA2. WPA2 is newer and corrected several security flaws in WPA. Both work in roughly the same way.