Absolute Beginner's Guide to Personal Firewalls by Jerry Lee Ford Jr.

By Jerry Lee Ford Jr.

Absolutely the Beginner's advisor to non-public Firewalls is designed to supply simplified, but thorough firewall details at the such a lot common own firewall software program functions on hand for the non specialist firewall purchaser. additionally, it bargains details and hyperlinks to websites that can assist you attempt your safeguard after your own firewall is put in

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Extra info for Absolute Beginner's Guide to Personal Firewalls

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You can call your local phone company and ask if it provides this service and then try to find an ISP that has an agreement with your company to provide the service. Alternatively, you can go straight to a local ISP that advertises DSL service and ask it to set everything up with the telephone company. com Even if DSL is available in your area, you have one more hurdle to get over. The local phone company might need to visit your house and perform a test of your internal wiring to make sure that it will support the data traffic.

If you are using a dial-up connection, your IP address is assigned every time you establish a dial-up connection. How ISPs Use MAC Addresses Likewise, the MAC address need not cause you any concern either, unless you plan to share your Internet connection with other computers on a small home network. Cable and DSL ISPs track the number of computers using an Internet connection by looking at the MAC addresses of the data packets that pass over the connection. This is why you must call and provide the MAC addresses of your cable modem and NIC card when you first activate your cable or DSL service.

TCP/IP ports are software-created communications ports that are assigned to network applications. Network applications communicate with other network applications by sending and receiving data to the appropriate TCP/IP port. Hackers have many tools and tricks that they use to try to gain access to your computer through these open ports. One of your most basic anti-hack defenses is to close any unnecessary ports. You learn more about these ports and how to close them in Chapter 9. ” Note TCP/IP is the language of the Internet and most corporate networks.

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