ifup

Section: System Administration tools and Daemons (8)
Updated: 2009-10-27
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NAME

ifup - bring a network interface up

ifdown - take a network interface down

SYNOPSIS

ifup IFACE [boot]
ifdown IFACE

DESCRIPTION

The ifup and ifdown commands may be used to configure (or, respec- tively, deconfigure) network interfaces based on interface definitions in the files /etc/sysconfig/network and /etc/sysconfig/network-scripts/ifcfg-<configuration>

These scripts take one argument normally: the name of the configuration (e.g. eth0). They are called with a second argument of "boot" during the boot sequence so that devices that are not meant to be brought up on boot (ONBOOT=no, see below) can be ignored at that time.

FILES

/etc/sysconfig/network
/etc/sysconfig/network-scripts/ifcfg-<configuration>: The file defining an interface.