Cracking The Connection Code
If you have enabled Internet connection sharing between two Windows 98-based computers, you’re using one of the computers (the computer with the Internet connection) as a simple router. Each information packet sent from a computer is seen by all the other computers on the local network. Hubs, switches and routers all take signals from computers or networks and pass them along to other computers and networks, but a router is the only one of these devices that examines each bundle of data as it passes and makes a decision about exactly where it should go. The logical address is what the network uses to pass information along to your computer. It joins the two networks, passing information from one to the other and, in some cases, performing translations of various protocols between the two networks. And, like any other business, they need to make money. To make money on YouTube you need views and subscribers-lots of them.
Con artists make money through deception. To make these decisions, routers must first know about two kinds of information: addresses and network structure. Both these programs, the anti-virus and the anti-spyware are a must have in todays computer age. The second 3 bytes are the serial number of the NIC itself. The first 3 bytes identify the company that made the NIC. For example, if your desktop computer has a network interface card (NIC) in it, the NIC has a physical address permanently stored in a special memory location. For example, if you begin to use advertising leaflets, which are which fill mail boxes each morning. Routers are programmed to understand the most common network protocols. For the routers that are part of the Internet’s main “backbone,” this means looking at, and moving on, millions of information packages every second. The circuit might involve a half dozen or more steps through copper cables, switches, fiber optics, microwaves and satellites, but those steps are established and remain constant for the duration of the call. Let’s look at what a very simple router might do. The tips below are laid out in simple layman’s terms so you can get a grasp how you can move up the Google ladder with internet marketing.
The configuration table in the router tells it that all out-bound packets are to use the T-1 line, unless it’s unavailable for some reason (perhaps a backhoe digs up the cable). The office network connects to the router through an Ethernet connection, specifically a 100 base-T connection (100 base-T means that the connection is 100 megabits per second, and uses a twisted-pair cable like an 8-wire version of the cable that connects your telephone to the wall jack). This is an address that’s unique to the piece of equipment that’s actually attached to the network cable. This logical address is connected to a physical address that you generally only see when you’re buying or selling a piece of property. The survey plot of the land and house, with latitude, longitude or section bearings, gives the legal description, or address, of the property. You can see, though, how Denial of Service attacks (described in the next section), in which people send millions and millions of messages to a particular server, will affect that server and 인터넷 가입 현금 사은품 the routers forwarding message to it. And people are taking notice. You should be very careful about giving your computer’s information to other people — with your address and the right tools, an unscrupulous person could, in some circumstances, gain access to your personal information and control your system through a “Trojan Horse” program.
If you’d like to see the MAC address and logical address used by the Internet Protocol (IP) for your Windows computer, you can run a small program that Microsoft provides. If you connect to your company’s network from home, then your computer may have an address that follows Novell’s IPX/SPX protocol. Depending on the time of day and day of the week, some parts of the huge public packet-switched network may be busier than others. You may be using the addressing schemes, or protocols, from several different types of networks simultaneously. The router is the only device that sees every message sent by any computer on either of the company’s networks. When an animator, on the other hand, sends a message to the bookkeeper asking about an expense-account check, then the router sees the recipient’s address and forwards the message between the two networks. As the messages pile up and pieces of the network become congested, more and more routers send out the message that they’re busy, and the entire network with all its users can be affected. Of course, you’re used to having several “logical addresses” bring messages to one physical address. Much of the work to get a message from one computer to another is done by routers, because they’re the crucial devices that let messages flow between networks, rather than within networks.