connections

from your stand-alone computer, small office/home office (SOHO) network, or your corporate Local Area Network (LAN).

routers

To connect your LAN directly to Internet or to other LANs using VPN or other methods.

firewalls

To protect your network from intrusions and to control access to the Internet.

e-mail

Setup and configuration of e-mail client software on desktops, and mail services on the servers.

web servers

Installation and configuration of web services on the servers.