network Network topology—This is usually done in the form of a diagram that shows the major network nodes, such as routers, switches, firewalls, and servers, and how they are all interconnected. Normally, printers and workstations are not included. Server information—This is all of the information on servers that you will need to manage or administer them, such as name, functions, IP address, disk configuration, OS and service pack, date and place of purchase, warranty, and so forth. Router and switch port assignments—This includes detailed information on WAN configuration, VLANs, or even the assignment of a port to a network node via the patch panel. Configuration of network services—Network services, such as DNS, WINS, DHCP, and RAS, are critical to the operation of the network. You should describe in detail how they are structured. Although it would be possible to derive that information by inspecting the servers, the point is to save that time by having it documented in an easy-to-decipher format. Domain policies and profiles—You can restrict the capabilities of network users with the Policy Editor in Windows NT or with Group Policies in Windows 2000. You can also create roaming profiles that are stored on a server rather than on local machines. This kind of configuration, if used, should be documented. Mission-critical applications—You must document how these are maintained, as well as what typically goes wrong with them and how you resolve problems. Procedures—This in itself can be a major undertaking. Procedures are basically the means by which we carry out policies, and they can be quite extensive. For instance, a policy can state, “The network shall be secure against unauthorized users.” However, it takes a great deal of effort to implement that policy. There are procedures for the firewall, for network protocols,