ifconfig – Ubantu Commands

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http://lpilinux.com – IFCONFIG is a command-line tool, which is used for network interface management. Following are some of the options used with the command: up: This option is used to activate the specified interface. down: This option is used to deactivate the specified interface. lo: This option is used to view the loopback interface. The IFCONFIG command is also used to configure an interface. Syntax: IFCONFIG interface options (HowTos)