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Chapter 3. Boot Process, Init, and Shutdown

  vncservers

  xinetd

It is possible that your system may be missing a few of them if the corresponding program that would

need that file is not installed.

Next, we will take a look at each one.

3.7.1.1.

/etc/sysconfig/amd

The

/etc/sysconfig/amd

file contains various parameters used by

amd

allowing for the automount 

ing and automatic unmounting of file systems.

3.7.1.2.

/etc/sysconfig/apmd

The

/etc/sysconfig/apmd

file is used by

apmd

as a configuration for what things to

start/stop/change on suspend or resume. It is set up to turn on or off

apmd

during startup, depending

on whether your hardware supports Advanced Power Management (APM) or if you choose not to use

it.

apm

is a monitoring daemon that works with power management code within the Linux kernel. It

can alert you to a low battery if you are using Red Hat Linux on a laptop, among other things.

3.7.1.3.

/etc/sysconfig/arpwatch

The

/etc/sysconfig/arpwatch

file is used to pass arguments to the

arpwatch

daemon at boot

time. The

arpwatch

daemon maintains a table of Ethernet MAC addresses and their IP address pair 

ings. For more information about what parameters you can use in this file, type

man arpwatch

. By

default, this file sets the owner of the

arpwatch

process to the user

pcap

.

3.7.1.4.

/etc/sysconfig/authconfig

The

/etc/sysconfig/authconfig

file sets the kind of authorization to be used on the host. It

contains one or more of the following lines:

  USEMD5= value

, where

value

is one of the following:

yes

  MD5 is used for authentication.

no

  MD5 is not used for authentication.

  USEKERBEROS= value

, where

value

is one of the following:

yes

  Kerberos is used for authentication.

no

  Kerberos is not used for authentication.

  USELDAPAUTH= value

, where

value

is one of the following:

yes

  LDAP is used for authentication.

no

  LDAP is not used for authentication.