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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
+