Chapter 12. Network Scripts

161

yes

  This device should be activated at boot time.

no

  This device should not be activated at boot time.

  PEERDNS= answer

, where

answer

is one of the following:

Z

[

Z

[

yes

  Modify

/etc/resolv.conf

if the DNS directive is set. If you are using DCHP, then

yes

is the default.

no

  Do not modify

/etc/resolv.conf

.

SRCADDR= address

, where

address

is the specified source IP address for outgoing

Z

[

Z

[

packets.

USERCTL= answer

, where

answer

is one of the following:

Z

[

Z

[

yes

  Non root users are allowed to control this device.

no

  Non root users are not allowed to control this device.

12.2.2. Dialup Interfaces

If you connect to the Internet via PPP dialup connection, you need a configuration file for that interface

as well.

This file is created automatically for you when you use

wvdial

, Network Administration Tool or

Kppp to create a dialup account. In addition, any changes to dialup account settings are reflected

in these interface configuration files. The Official Red Hat Linux Getting Started Guide contains in 

structions for using these GUI based dialup connection tools. You can also create and edit this file

manually. A typical

ifcfg ppp0

files looks like this:

DEVICE=ppp0

NAME=test

WVDIALSECT=test

MODEMPORT=/dev/modem

LINESPEED=115200

PAPNAME=test

USERCTL=true

ONBOOT=no

PERSIST=no

DEFROUTE=yes

PEERDNS=yes

DEMAND=no

IDLETIMEOUT=600

Serial Line Internet Protocol (SLIP) is another dialup interface, although it is less commonly used.

SLIP files have interface configuration file names such as

ifcfg sl0

.

Among the options not already discussed that may be used in these files:

  DEFROUTE= answer

, where

answer

is one of the following:

Z

[

Z

[

yes

  Set this interface as the default route.

no

  Do not set this interface as the default route.

  DEMAND= answer

, where

answer

is one of the following:

Z

[

Z

[