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Connecting a Fedora Linux System to a DSL Modem

3,244 bytes added, 19:40, 24 August 2007
New page: This chapter covers the configuration of Fedora Linux to connect to the internet via a broadband DSL modem. Before proceeding with this chapter, it is important to understand the dangers o...
This chapter covers the configuration of Fedora Linux to connect to the internet via a broadband DSL modem. Before proceeding with this chapter, it is important to understand the dangers of connecting a system directly to a DSL modem. Once the connection is established, the Fedora Linux system will be directly visible to anyone on the internet. It is important, therefore, to ensure that you have a firewall installed and running on the system to protect it from outside attack. The Firestarter firewall provides a easy to use and flexible firewall configuration environment. Before reading this chapter we recommend first reading the [[Basic Fedora Linux Firewall Configuration]] and [[Using Firestarter to Configure a Fedora Linux Firewall]] chapters of this book.

== Making the Connections ==

Before configuring Fedora to connect to your DSL provider the first step is to make the physical connections. First connect the DSL modem to the phone outlet. Be sure to install DSL filters on any outlets to which phones or fax machines are attached. Finally connect the DSL modem to the network adapter of your PC using the network cable supplied with your modem.

== Configuring Fedora Linux to Connect to a DSL modem ==

UbunDSL connections are established using a protocol called ''Point-to-Point Over Ethernet'' which can be easily configured using the Fedora ''Network Configuration Tool''. To run this utility, select the ''System->Administration->Network'' desktop menu option, or run ''system-config-network'' tool from a Terminal command-line. The following figure shows an example of the tool:

[[Image:fedora_network_configuration.jpg|Fedora Linux Configuration Tool]

To establish a DSL connection, press the ''New'' button and select ''xDSL Connection'' from the list of device types and click on the ''Forward'' button. The ''Configure DSL Connection'' will appear as follows:

[[Image:fedora_configure_dsl.jpg| Configuring Fedora DSL connection]]


Enter the required information into the fields provided. This information should have been provided to you by your Internet Service Provider (ISP). Click the ''Forward'' button to complete the configuration and then click ''Apply'' on the completion screen.

The main ''Network Configuration Tool'' should now list the new xDSL connection:

[Image:fedora_configured_dsl.jpg| Fedora DSL connection configured]]

Select ''File->Save'' to save the configuration. Note that the connection is listed as Inactive. The next step is to activate the connection.

== Establishing a DSL Connection ==

Once configured, the DSL connection is established by selecting the connection in the main screen of the ''network Configuration'' tool and pressing the ''Activate'' toolbar button. The tool will subsequently establish the connection and mark the status as active.if the connection fails, click on the ''Edit'' button in the toolbar and verify the information is correct.

To disable the connection at any time, simply launch the Network Configuration tool, select the connection and click on ''Deactivate''.

== Disconnecting from a DSL Connection ==

To disable the connection at any time, simply launch the Network Configuration tool, select the connection and click on ''Deactivate''.

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