Red Hat LINUX 7.2 Reference Manual page 45

Section 3.3:Sysconfig Information
/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.
/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.
/etc/sysconfig/clock
The /etc/sysconfig/clock file controls the interpretation of values read from the system clock.
Earlier releases of Red Hat Linux used the following values (which are deprecated):
• CLOCKMODE= <value> , where <value> is one of the following:
– GMT — Indicates that the clock is set to Universal Time (Greenwich Mean Time).
– ARC — Indicates the ARC console's 42-year time offset is in effect (for Alpha-based systems
only).
Currently, the correct values are:
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