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Files in /etc/sysconfig
=======================
/etc/sysconfig/clock:
deprecated values from earlier releases:
CLOCKMODE=GMT indicates that the clock is set to UTC
CLOCKMODE=ARC on alpha only indicates the ARC console's
42-year time offset is in effect
currently correct values:
UTC=true indicates that the clock is set to UTC; anything
else indicates that it is set to local time
ARC=true on alpha only indicates the ARC console's
42-year time offset is in effect; otherwise the normal
Unix epoch is assumed
/etc/sysconfig/keyboard:
KEYTABLE=<keytable file>
for example: KEYTABLE="/usr/lib/kbd/keytables/us.map"
/etc/sysconfig/mouse:
MOUSETYPE=microsoft|mouseman|mousesystems|ps/2|msbm|logibm|atibm|
logitech|mmseries|mmhittab
XEMU3=yes|no (emulate three buttons with two buttons whenever
necessary, most notably in X)
In addition, /dev/mouse points to the mouse device.
/etc/sysconfig/network:
NETWORKING=yes|no
HOSTNAME=<fqdn by default, but whatever hostname you want>
Note: for compatibility with some old software people might
install (like trn), the /etc/HOSTNAME file should contain the
same value as here.
FORWARD_IPV4=yes|no (The current Red Hat Linux installation
sets this to no by default for RFC compliance, but if
FORWARD_IPV4 is not set at all, forwarding is *enabled*
for compatibility with the configuration files used on
Red Hat Linux versions 4.2 and earlier.)
GATEWAY=<gateway IP>
GATEWAYDEV=<gateway device> (e.g. eth0)
NISDOMAIN=<nis domain name>
/etc/sysconfig/pcmcia:
PCMCIA=yes|no
PCIC=i82365|tcic
PCIC_OPTS=<socket driver (i82365 or tcic) timing parameters>
CORE_OPTS=<pcmcia_core options>
CARDMGR_OPTS=<cardmgr options>
/etc/sysconfig/amd:
ADIR=/.automount (normally never changed)
MOUNTPTS='/net /etc/amd.conf' (standard automount stuff)
AMDOPTS= (extra options for AMD)
/etc/sysconfig/tape:
DEV=/dev/nst0
Tape device. Use the non-rewinding one for these scripts.
For SCSI tapes this is /dev/nst#, where # is the number of the
tape drive you want to use. If you only have one then use
nst0.
For IDE tapes you use /dev/ht#, where # is the number of the tape
drive you want to use (usually ht0).
For floppy tape drives use /dev/ftape.
ADMIN=root
Person to mail to if the backup fails for any reason
SLEEP=5
Time to sleep between tape operations. Some drives need a bit
more than others, but 5 seems to work for 8mm, 4mm, and DLT
BLOCKSIZE=32768
This worked fine for 8mm, then 4mm, and now DLT. An optimal
setting is probably however much data your drive writes at one
time.
SHORTDATE=$(date +%y:%m:%d:%H:%M)
A short date string, used in backup log filenames.
DAY=$(date +log-%y:%m:%d)
This is used for the log file directory.
DATE=$(date)
Regular date string, used in log files.
LOGROOT=/var/log/backup
Root of the logging directory
LIST=$LOGROOT/incremental-list
This is the file name the incremental backup will use to store
the incremental list. It will be $LIST-{some number}.
DOTCOUNT=$LOGROOT/.count
For counting as you go to know which incremental list to use
COUNTER=$LOGROOT/counter-file
For rewinding when done...might not use.
BACKUPTAB=/etc/backuptab
The file in which we keep our list of backup(s) we want to make.
Files in /etc/sysconfig/network-scripts/
========================================
/etc/sysconfig/network-scripts/ifup:
/etc/sysconfig/network-scripts/ifdown:
Symlinks to /sbin/ifup and /sbin/ifdown, respectively.
These are the only two scripts "in" this directory that should
be called directly; these two scripts call all the other
scripts as needed. These symlinks are here for legacy purposes
only -- they'll will probably be removed in future versions, so
only /sbin/ifup and /sbin/ifdown should currently be used.
These scripts take one argument normally: the name of the device
(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.
/etc/sysconfig/network-scripts/network-functions:
Not really a public file. Contains functions which the scripts use
for bringing interfaces up and down. In particular, it contains
most of the code for handling alternative interface configurations
and interface change notification through netreport.
/etc/sysconfig/network-scripts/ifcfg-<interface-name> and
/etc/sysconfig/network-scripts/ifcfg-<interface-name>-<clone-name>:
The first defines an interface, and the second contains
only the parts of the definition that are different in a
"clone" (or alternative) interface. For example, the
network numbers might be different, but everything else
might be the same, so only the network numbers would be
in the clone file, but all the device information would
be in the base ifcfg file.
The items that can be defined in an ifcfg file depend on the
interface type. The really obvious ones I'm not going to
bother to define; you can figure out what "IPADDR" is, I
think... :-)
Base items:
DEVICE=<name of physical device (except dynamically-allocated PPP
devices where it is the "logical name")
IPADDR=
NETMASK=
NETWORK=
BROADCAST=
GATEWAY=
ONBOOT=yes|no
USERCTL=yes|no
BOOTPROTO=none|bootp|dhcp
PPP/SLIP items:
PERSIST=yes|no
MODEMPORT=<device, say /dev/modem>
LINESPEED=<speed, say 115200>
DEFABORT=yes|no (tells netcfg whether or not to put default
abort strings in when creating/editing the chat script and/or
dip script for this interface)
PPP-specific items
DEFROUTE=yes|no (set this interface as default route?)
ESCAPECHARS=yes|no (simplified interface here doesn't let people
specify which characters to escape; almost everyone can use
asyncmap 00000000 anyway, and they can set PPPOPTIONS to
asyncmap foobar if they want to set options perfectly)
HARDFLOWCTL=yes|no (yes imples "modem crtscts" options)
PPPOPTIONS=<arbitrary option string; is placed last on the
command line, so it can override other options like asyncmap
that were specified differently>
PAPNAME=<"name $PAPNAME" on pppd command line> (note that
the "remotename" option is always specified as the logical
ppp device name, like "ppp0" (which might perhaps be the
physical device ppp1 if some other ppp device was brought
up earlier...), which makes it easy to manage pap/chap
files -- name/password pairs are associated with the
logical ppp device name so that they can be managed
together.
In principal, I'm not aware of anything that would keep
the logical PPP device names from being "worldnet" or
"myISP" instead of ppp0-pppN)
REMIP=<remote ip address, normally unspecified>
MTU=
MRU=
DISCONNECTTIMEOUT=<number of seconds, default currently 5>
(time to wait before re-establishing the connection after
a successfully-connected session terminates before attempting
to establish a new connection.)
RETRYTIMEOUT=<number of seconds, default currently 60>
(time to wait before re-attempting to establish a connection
after a previous attempt fails.)
/etc/sysconfig/network-scripts/chat-<interface-name>:
chat script for PPP or SLIP connection intended to establish
the connection. For SLIP devices, a DIP script is written
from the chat script; for PPP devices, the chat script is used
directly.
/etc/sysconfig/network-scripts/dip-<interface-name>
A write-only script created from the chat script by netcfg.
Do not modify this. In the future, this file may disappear
by default and created on-the-fly from the chat script if
it does not exist.
/etc/sysconfig/network-scripts/ifup-post
Called when any network device EXCEPT a SLIP device comes
up. Calls /etc/sysconfig/network-scripts/ifup-routes to
bring up static routes that depend on that device. Brings
up aliases for that device. Sets the hostname if it is not
already set and a hostname can be found for the IP for that
device. Sends SIGIO to any programs that have requested
notification of network events.
Could be extended to fix up nameservice configuration, call
arbitrary scripts, etc, as needed.
/etc/sysconfig/network-scripts/ifdhcpc-done
Called by dhcpcd once dhcp configuration is complete; sets
up /etc/resolv.conf from the version dhcpcd dropped in
/etc/dhcpc/resolv.conf
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