Professional Windows Server 1002003 Security A Technical Reference [Electronic resources] نسخه متنی

In WS2003, a

connection is a
mechanism
for connecting your computer to another computer, a remote access
server, a dedicated network access device, or the Internet.
Connections in WS2003 are classified in different ways. For example,
you can create:

LAN connections

These connections use a

network
interface card (NIC) to enable the computer to communicate with other
computers on the local area network (LAN). Unlike other kinds of
connections in WS2003, LAN connections are created automatically
during Setup or when an additional NIC is installed.

WAN connections

These include both
dial-up and dedicated connections
through wide area network (WAN) devices such as modems, ISDN terminal
adapters, X.25 pads, or routers. They are also called remote access
connections as they allow remote clients to access resources on the
local network.

Direct computer connections

These are special types of
connections established
between two computers using a serial (RS-232C) or parallel (ECP)
file-transfer cable, or an infrared port. They are used only to
establish a connection to transfer files between machines.

In addition, you can classify connections as incoming or outgoing:

Incoming connections

These connections enable

your
computer to listen for and respond to connection attempts by remote
clients. In an inbound connection your computer assumes the role of a
server and can grant clients access to resources on the local
computer or act as a secure gateway to allow them to access resources
on the local network. WS2003 supports dial-in inbound connections
using a modem, modem pool, ISDN adapter, serial or parallel cable,
infrared port, or other hardware.

Outgoing connections

These connections enable
your computer to initiate or
establish a connection with another computer, a remote network, or
the Internet. WS2003 supports several different types of outbound
connections:

• Dial-up connections to the Internet using a modem or ISDN adapter

• On-demand broadband connections to the Internet using a DSL or cable
  modem, sometimes called a PPPoE connections

• Always-on broadband connections to the Internet using a DSL router or
  direct LAN connection

• Dial-up connections to a remote private network using a modem or ISDN
  adapter

• Virtual private network (VPN) connections that securely tunnel over
  the Internet to a remote private network

• Direct connections to another computer using a null-modem cable,
  infrared transceiver, or other device

Implementing Connections

On WS2003, outgoing

connections
are created

using the New Connection Wizard, while
inbound connections can be implemented two ways:

• If you need to allow incoming connections from only a few clients,
  you can use the Network Connection Wizard to create them. Use this
  approach if your network is small and clients need to connect only
  occasionally to access resources on your network.

• If you have a large, distributed network and want to support large
  numbers of remote clients, you're better off using
  the Routing and Remote Access Service (RRAS) to create a remote
  access server to manage your incoming connections. For more
  information on how to do this, see

  Routing and Remote
  Access later in this chapter.