A multi-homed host is known as a computer that has multiple network connections, of which the connections may or may not be the same network. Web hosts and application service providers set up a multihomed router (or system) to connect to two or more upstream Internet Service Providers and set up network redundancy. The term, multihomed, is used to denote that a system is connected to multiple networks.

Running a company as a reseller web host, you'll often receive an email from your upstream provider reporting security violations. If you do not correct the problem promptly, your upstream provider may block inbound and outbound traffic from the affected server.

Wi-Fi, (or Wireless Fidelity) is a wireless LAN technology that allows Wi-Fi equipped computers to connect to the Internet from anywhere within the range of a base station. Wi-Fi encompasses a family of specifications within the IEEE 802.11 standard. These include 802.11b (the most popular, at 11Mbps, with a typical range of up to 300 feet), 802.11a (54Mbps, but at a shorter range), and 802.11g (combining the speed of "a" while keeping the range of "b").