ifdown(8) [centos man page]

ifup(8) 					      System Administration tools and Daemons						   ifup(8)

NAME

       ifup - bring a network interface up

       ifdown - take a network interface down

SYNOPSIS

       ifup CONFIG [boot]

       ifdown CONFIG

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"  dur-
       ing 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.

SEE ALSO

       /usr/share/doc/initscripts-*/sysconfig.txt

								    2009-10-27								   ifup(8)

USERNETCTL(8)						      System Manager's Manual						     USERNETCTL(8)

NAME

       usernetctl - allow a user to manipulate a network interface if permitted

SYNOPSIS

       usernetctl interface-name up|down|report

DESCRIPTION

       usernetctl  checks to see if users are allowed to manipulate the network interface specified by interface-name, and then tries to bring the
       network interface up or down, if up or down was specified on the command line, or returns true or false status (respectively) if the report
       option was specified.

       usernetctl  is  not  really  meant to be called directly by users, though it currently works fine that way.  It is used as a wrapper by the
       ifup and ifdown scripts, so that users can do exactly the same thing as root:
       ifup interface-name
       ifdown interface-name
       and ifup and ifdown will call usernetctl automatically to allow the interface status change.

OPTIONS

       interface-name
	      The name of the network interface to check; for example, "ppp0".	For backwards compatibility, "ifcfg-ppp0" and "/etc/sysconfig/net-
	      work-scripts/ifcfg-ppp0" are also supported.

       up|down
	      Attempt to bring the interface up or down.

       report Report on whether users can bring the interface up or down.

NOTES

       Alternate device configurations may inherit the default configuration's permissions.

RHS
								   Red Hat, Inc.						     USERNETCTL(8)