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Generic options:
/etc/sysconfig/*
CGROUP_DAEMON=
List of control groups that the daemon will be run in. For example,
CGROUP_DAEMON="cpu:daemons cpuacct:/" will run it in the daemons
group for the CPU controller, and the '/' group for the CPU accounting
controller.
/etc/sysconfig/authconfig
used by authconfig to store information about the system's user
information and authentication setup; changes made to this file
have no effect until the next time authconfig is run
USEHESIOD=no
Whether or not the hesiod naming service is in use. If not set,
authconfig examines the passwd setting in /etc/nsswitch.conf.
USELDAP=no
Whether or not LDAP is used as a naming service. If not set,
authconfig examines the passwd setting in /etc/nsswitch.conf.
USENIS=no
Whether or not NIS is in use. If not set, authconfig examines
the passwd setting in /etc/nsswitch.conf.
USEKERBEROS=no
Whether or not Kerberos is in use. If not set, authconfig examines
the settings in /etc/pam.d/system-auth.
USELDAPAUTH=no
Whether or not LDAP is being used for authentication. If not set,
authconfig examines the settings in /etc/pam.d/system-auth. Note
that this option is separate from USELDAP, and that neither implies
the other.
USEMD5=no
Whether or not MD5-based hashing should be used when setting passwords.
If not set, authconfig examines the settings in /etc/pam.d/system-auth.
This option affects authentication using both local files and LDAP.
USESHADOW=no
Whether or not shadow passwords are in use. If not set, authconfig
checks for the existence of /etc/shadow.
USESMBAUTH=no
Whether or not SMB authentication is in use. If not set, authconfig
examines the settings in /etc/pam.d/system-auth.
/etc/sysconfig/autofsck
does not normally exist; if it does, it can influence a choice
whether or not to fsck after a crash
AUTOFSCK_DEF_CHECK=no
If the user does not respond, choose whether or not to fsck
AUTOFSCK_SINGLEUSER=
If this is set, drop to single user mode before fsck.
/etc/sysconfig/clock:
Current releases use the third parameter in the /etc/adjtime
file (either 'UTC' or 'LOCAL') to determine whether the hwclock
is in UTC or localtime.
ZONE="filename" indicates the zonefile under /usr/share/zoneinfo
that /etc/localtime is a copy of, for example:
ZONE="US/Eastern"
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
UTC=true,yes
Indicates that the hardware clock is set to UTC.
UTC=no,false
Indicates that the hardware clock 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.
SRM=true on alpha only indicates the SRM 1900 epoch is in
effect; otherwise the normal Unix epoch is assumed.
/etc/sysconfig/desktop:
DESKTOP=GNOME|KDE
This determines the default desktop for new users.
DISPLAYMANAGER=GNOME|KDE|XDM
This determines display manager started by /etc/X11/prefdm,
independent of the desktop.
/etc/sysconfig/init:
ACTIVE_CONSOLES=<devices>
A list of devices to start gettys on on boot. This supports
shell-style globs.
BOOTUP=<some bootup mode>
BOOTUP=graphical means use X Windows graphical boot up
BOOTUP=color means colorized text mode boot display.
BOOTUP=verbose means old style display
Anything else means simplified display, but without color or ANSI-formatting
LOGLEVEL=<a number>
Sets the initial console logging level for the kernel.
The default is 7. 8 means everything (including debugging);
1 means nothing except kernel panics. syslogd will override
this once it starts.
RES_COL=<a number>
Column of the screen to start status labels at. Defaults to 60
MOVE_TO_COL=<a command>
A command to move the cursor to $RES_COL. Defaults to nasty
ANSI sequences output by echo -e.
SETCOLOR_SUCCESS=<a command>
A command to set the color to a color indicating success.
Defaults to nasty ANSI sequences output by echo -e setting
the color to green.
SETCOLOR_FAILURE=<a command>
A command to set the color to a color indicating failure.
Defaults to nasty ANSI sequences output by echo -e setting
the color to red.
SETCOLOR_WARNING=<a command>
A command to set the color to a color indicating warning.
Defaults to nasty ANSI sequences output by echo -e setting
the color to yellow.
SETCOLOR_NORMAL=<a command>
A command to set the color to 'normal'. Defaults to nasty
ANSI sequences output by echo -e.
PROMPT=yes|no
Set to 'yes' to enable the key check for interactive mode as well as
asking if a filesystem check should be done. Default is 'no' and
the kernel command line option "forcefsck" can be used to check the
filesystems and "confirm" can be used to enable interactive startup
questions.
AUTOSWAP=yes|no
Set to 'yes' to enable automatic swapon of all partitions with
the proper swap magic. This allows setting up swap without editing
/etc/fstab.
obsoleted values from earlier releases:
MAGIC_SYSRQ=yes|no
Setting this to 'no' used to disable the magic sysrq key and
Stop-A (break on serial console) on SPARC. This setting has been
moved into kernel.sysrq and kernel.stop-a settings respectively in
/etc/sysctl.conf. Setting either of them there to 0 disables it,
setting it to 1 enables it.
STOP_A=yes|no
Setting this to 'no' used to disable the Stop-A (break on
serial console) key on SPARC.
This setting has been moved into kernel.stop-a setting in
/etc/sysctl.conf. Setting it there to 0 disables it,
setting it to 1 enables it. The setting should be present
on SPARC only.
/etc/sysconfig/keyboard:
KEYTABLE=<keytable file>
for example: KEYTABLE="/usr/lib/kbd/keytables/us.map"
If you dump a keymap (using 'dumpkeys') to
/etc/sysconfig/console/default.kmap
it will be loaded on bootup before filesystems are mounted/checked.
This could be useful if you need to emergency type the root password.
This has to be a dumped keymap, as opposed to copying the shipped
keymap files, as the shipped files include other maps from the
/usr/lib/kbd/keytables directory.
KEYBOARDTYPE=sun|pc
on SPARC only, sun means a sun keyboard is attached on /dev/kbd,
pc means a PS/2 keyboard is on ps/2 port.
/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)
DEVICE=<a device node> (the device of the mouse)
In addition, /dev/mouse points to the mouse device.
/etc/sysconfig/network:
NETWORKING=yes|no
HOSTNAME=<fqdn by default, but whatever hostname you want>
GATEWAY=<gateway IP>
GATEWAYDEV=<gateway device to use, when multiple devices have GATEWAY=> (e.g. eth0)
NISDOMAIN=<nis domain name>
NOZEROCONF=
Set this to not set a route for dynamic link-local addresses.
NETWORKDELAY=<delay in seconds>
Delay in seconds after all network interfaces are initialized. Useful if
network has spanning tree running and must wait for STP convergence.
Default: 0 (no delay)
NETWORKWAIT=yes|no
When using NetworkManager, wait for an active network interface to
be configured before continuing. This can be useful if you have legacy
daemons that do not react properly to changing network configuration.
If this is set but no active devices receive an address, it will timeout
and continue 30 seconds after link acquisition.
Default: no (do not wait)
IPV6FORWARDING=yes|no
Enable or disable global forwarding of incoming IPv6 packets
on all interfaces.
Note: Actual packet forwarding cannot be controlled per-device, use netfilter6 for such issues
Default: no
IPV6INIT=yes|no
Enable or disable IPv6 configuration for all interfaces
Use with caution!
Default: value not set in this file
IPV6_AUTOCONF=yes|no
Sets the default for device-based autoconfiguration.
Default: yes if IPV6FORWARDING=no, no if IPV6FORWARDING=yes
IPV6_ROUTER=yes|no
Sets the default for device-based Host/Router behaviour.
Default: yes if IPV6FORWARDING=yes, no if IPV6FORWARDING=no
IPV6_AUTOTUNNEL=yes|no
Controls automatic IPv6 tunneling.
Default: no
IPV6_DEFAULTGW=<IPv6 address[%interface]> (optional)
Add a default route through specified gateway
An interface can be specified: required for link-local addresses
Examples:
IPV6_DEFAULTGW="3ffe:ffff:1234:5678::1"
Add default route through 3ffe:ffff:1234:5678::1
IPV6_DEFAULTGW="3ffe:ffff:1234:5678::1%eth0"
Add default route through 3ffe:ffff:1234:5678::1 and device eth0
IPV6_DEFAULTGW="fe80::1%eth0"
Add default route through fe80::1 and device eth0
Note: if IPV6_DEFAULTGW is specified with %interface scope and it
doesn't match IPV6_DEFAULTDEV, IPV6_DEFAULTDEV is ignored.
Note: it's preferred to use %interface for all addresses, not
just link-local if you have multiple IPv6-enabled interfaces.
IPV6_DEFAULTDEV=<interface> (optional)
Add a default route through specified interface without specifying next hop
Type of interface will be tested whether this is allowed
Examples:
IPV6_DEFAULTDEV="eth0" INVALID example!
IPV6_DEFAULTDEV="ppp0"
IPV6_DEFAULTDEV="sit1"
Examples for 6to4
IPV6_DEFAULTDEV="tun6to4"
Add default route through dedicated 6to4 tunnel device "tun6to4", if configured
Note: "tun6to4" does not support an additional IPV6_DEFAULTGW.
Other interfaces prefer IPV6_DEFAULTGW, if specified.
IPV6_RADVD_PIDFILE=<pid-file> (optional)
Location of PID file for controlling radvd, see IPV6_CONTROL_RADVD
Default: "/var/run/radvd/radvd.pid"
Example:
IPV6_RADVD_PIDFILE="/some/other/location/radvd.pid"
IPV6TO4_RADVD_PIDFILE=<pid-file> (obsolete)
As above, still supported for a while for backward compatibility.
IPV6_RADVD_TRIGGER_ACTION=startstop|reload|restart|SIGHUP (optional)
How to trigger radvd in case of 6to4 or PPP action
startstop: radvd starts if interface goes up and stops
if interface goes down using initscript call of radvd with related parameter
reload|restart: initscript of radvd is called with this parameter
SIGHUP: signal HUP is sent to radvd, pidfile must be specified, if not the default
Default: SIGHUP
IPv6 options above can be overridden in interface-specific configuration.
obsoleted values from earlier releases:
FORWARD_IPV4=yes|no
This setting has been moved into net.ipv4.ip_forward setting
in /etc/sysctl.conf. Setting it to 1 there enables IP forwarding,
setting it to 0 disables it (which is the default for RFC compliance).
/etc/sysconfig/static-routes-ipv6:
Contains lines of the form:
<device> IPv6-network IPv6-gateway
<tunneldevice> IPv6-network
<device> must be a device name to have the route brought up and
down with the device
For example:
eth0 fec0:0:0:2::/64 fec0:0:0:1:0:0:0:20
adds a route for IPv6 network fec0:0:0:2::/64 through fec0:0:0:1:0:0:0:20
eth0 2000::/3 3ffe:ffff:0:1::1
so-called "default" routes for clients
sit1 2000::/3
adds routes through dedicated tunnel interface sit1
tun6to4 3ffe:ffff:1234::/56
adds routes through hardwired 6to4 tunnel interface tun6to4
tun6to4 3ffe:ffff:5678::/56 ::5.6.7.8
adds routes through hardwired 6to4 tunnel interface tun6to4,
specifying next hop
Notes:
* default routes (such as the "2000::/3" shown above) should be set with
IPV6_DEFAULTGW and IPV6_DEFAULTDEV, see more above.
* tunnel device "sit0" is not supported here, routes will never be applied
/etc/sysconfig/routed:
SILENT=yes|no
EXPORT_GATEWAY=yes|no
/etc/sysconfig/rawdevices:
This is used for setting up raw device to block device mappings.
It has the format:
<rawdev> <major> <minor>
<rawdev> <blockdev>
For example:
/dev/raw/raw1 /dev/sda1
/dev/raw/raw2 8 5
/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=$LOGROOT/counter-file
For rewinding when done...might not use.
BACKUPTAB=/etc/backuptab
The file in which we keep our list of backup(s) we want to make.
/etc/sysconfig/saslauthd:
used by the saslauthd init script (part of the cyrus-sasl package) to
control which arguments are passed to saslauthd at startup time; changes
made to this file have no effect until saslauthd is restarted
MECH=shadow
controls which data source saslauthd will consult when checking user
passwords; run 'saslauthd -v' to get a full list of available
authentication mechanisms
SOCKETDIR=/var/run/saslauthd
controls in which directory saslauthd will be directed to create its
listening socket; any change to this value will require a corresponding
change in client configuration files
/etc/sysconfig/sendmail:
DAEMON=yes|no
yes implies -bd (i.e., listen on port 25 for new mail)
QUEUE=1h
given to sendmail as -q$QUEUE
-q option is not given to sendmail if /etc/sysconfig/sendmail
exists and QUEUE is empty or undefined.
/etc/sysconfig/i18n
If ~/.i18n exists, it is used in addition to /etc/sysconfig/i18n and allows
per-user customization of the locales.
LANG= set locale for all categories, can be any two letter ISO
language code
LC_CTYPE= locale data configuration for classification and conversion
of characters
LC_COLLATE= locale data configuration for collation (sort order) of
strings
LC_MESSAGES= locale data configuration for translation of messages
LC_NUMERIC= locale data configuration for non-monetary numeric data
LC_MONETARY= locale data configuration for monetary data
LC_TIME= locale data configuration for date and time
LC_ALL= locale data configuration overriding all of the above
LANGUAGE= can be a : separated list of ISO language codes
LINGUAS= can be a ' ' separated list of ISO language codes
The above variables are used in /etc/profile.d/lang.sh.
SYSFONT= Console font. Fonts are found in /lib/kbd/consolefonts.
UNIMAP= Unicode font map. Most fonts have these built-in. Font maps
can be found in /lib/kbd/unimaps. These are applied via setfont's
-u option.
SYSFONTACM= Console map. These are applied via setfont's -m option,
and are found in /lib/kbd/consoletrans.
The above are used by the /sbin/setsysfont command (which is run
by rc.sysinit at boot time.) For more information, see setfont(8).
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 /sbin/ifup and /sbin/ifdown should currently be used
at the user level.
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.
Also, interfaces may be brought up via the hotplug scripts;
in this case, HOTPLUG=no needs to be set to no to avoid this.
This is useful e.g. to prevent bonding device activation by merely
loading the bonding kernel module.
/etc/sysconfig/network-scripts/init.ipv6-global:
Not really a public file. Contains different basic settings that
are set from /etc/[rc.d]/init.d/network at different stages of
network initialization.
/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/network-functions-ipv6:
Not really a public file. Contains functions which the scripts use
for bringing IPv6 on interfaces up and down, like addresses, routes,
forwarding handling and static or automatic tunneling.
/etc/sysconfig/network-scripts/ifcfg-<interface-name> and
/etc/sysconfig/network-scripts/ifcfg-<interface-name>:<alias-name>:
The first defines an interface, and the second contains
only the parts of the definition that are different in a
"alias" (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 alias 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:
NAME=<friendly name for users to see>
Most important for PPP. Only used in front ends.
DEVICE=<name of physical device (except dynamically-allocated PPP
devices where it is the "logical name")>
IPADDRn=
PREFIXn=
Network prefix. It is used for all configurations except aliases
and ippp devices. It takes precedence over NETMASK when both
PREFIX and NETMASK are set.
NETMASKn=
Subnet mask; just useful for aliases and ippp devices. For all other
configurations, use PREFIX instead.
The "n" is expected to be consecutive positive integers starting from 0.
It can be omitted if there is only one address being configured.
GATEWAY=
METRIC=
Metric for the default route using GATEWAY
ONBOOT=yes|no (not valid for alias devices; use ONPARENT)
HOTPLUG=yes|no
USERCTL=yes|no
BOOTPROTO=none|bootp|dhcp
VLAN=yes|no
MTU=
Default MTU for this device
WINDOW=
Default window for routes from this device
PEERDNS=yes|no
modify /etc/resolv.conf if peer uses msdns extension (PPP only) or
DNS{1,2} are set, or if using dhclient. default to "yes".
DNS{1,2}=<ip address>
provide DNS addresses that are dropped into the resolv.conf
file if PEERDNS is not set to "no".
SCOPE=
Set to "scope SCOPE-ID" to set a non-default scope. Supported only on
Ethernet with BOOTPROTO=none.
SRCADDR=
use the specified source address for outgoing packets
HWADDR=
ethernet hardware address for this device
MACADDR=
Set the hardware address for this device to this.
Use of this in conjunction with HWADDR= may cause
unintended behavior.
NOZEROCONF=
Set this to not set a route for dynamic link-local addresses
over this device.
PERSISTENT_DHCLIENT=yes|no|1|0
Without this option, or if it is 'no'/'0', and BOOTPROTO=dhcp,
dhclient is run for the interface in "one-shot" mode; if the
dhcp server does not respond for a configurable timeout, then
dhclient exits and the interface is not brought up -
the '-1' option is given to dhclient.
If PERSISTENT_DHCLIENT=yes, then dhclient will keep on trying
to contact the dhcp server when it does not respond - no '-1'
option is given to dhclient. Note: this disables the automatic
checking for the presence of a link before starting dhclient.
DHCPRELEASE=yes|no|1|0
With this option set to 'yes' (1), when a dhcp configured
interface is brought down with 'ifdown', the lease will be
released. Otherwise, leases are not released.
DHCP_HOSTNAME=<name>
Sends the specified hostname to the DHCP server.
DHCLIENT_IGNORE_GATEWAY=yes|no|1|0
If set to 'yes', it will cause dhclient-script to ignore any $GATEWAY
setting that may be in the ifcfg file for this interface.
Otherwise, the dhclient session which obtains an ip-address
on the same subnet as $GATEWAY will set the default route
to be via $GATEWAY, and no other dhclient session will set
the default route.
DHCLIENTARGS=
Any additional arguments to dhclient.
NM_CONTROLLED=yes|no
If set to 'no', NetworkManager will ignore this connection/device.
Defaults to 'yes'.
ARPCHECKn=yes|no
If set to 'no', ifup will not try to determine, if requested ip address
is used by other machine in network.
Defaults to 'yes'.
ARPUPDATE=yes|no
If set to 'no' the neighbours in current network will not be updated with
ARP information about this NIC. This is especially handy using LVS Load
Balancing with Direct Routing enabled.
Defaults to 'yes'.
IPV4_FAILURE_FATAL=yes|no
If set to yes, ifup-eth will end immediately after ipv4 dhclient fails.
Defaults to 'no'.
If BOOTPROTO is not "none", then the only other item that
must be set is the DEVICE item; all the rest will be determined
by the boot protocol. No "dummy" entries need to be created.
Base items being deprecated:
NETWORK=<will be calculated automatically with ipcalc>
BROADCAST=<will be calculated automatically with ipcalc>
Alias specific items:
ONPARENT=yes|no
Whether to bring up the device when the parent device is brought
up.
Default: yes
IPv6-only items for real interfaces:
IPV6INIT=yes|no
Enable or disable IPv6 configuration for this interface
Default: no
IPV6FORWARDING=yes|no
Enable or disable global forwarding of incoming IPv6 packets
Note: Obsolete in interface specification!
Default: no
IPV6ADDR=<IPv6 address>[/<prefix length>]
Specify a primary static IPv6 address here
Optional, if normal host and a router advertisement daemon is on local link
Required, if node is a router and interface should route packets
Note: if prefix length is omitted, 64 is assumed
Example:
IPV6ADDR="3ffe:ffff:0:5::1"
IPV6ADDR="3ffe:ffff:0:1::1/128"
IPV6ADDR_SECONDARIES="<IPv6 address>[/<prefix length>] ..." (optional)
A list of secondary IPv6 addresses (e.g. useful for virtual hosting)
Example:
IPV6ADDR_SECONDARIES="3ffe:ffff:0:1::10 3ffe:ffff:0:2::11/128"
IPV6_MTU=<MTU of link> (optional)
Optional, dedicated MTU of this link
Note: Must be greater or equal to 1280.
Example:
IPV6_MTU="1280"
IPV6_PRIVACY=rfc3041
Enables RFC 3041 IPv6 privacy support if set.
Default: RFC 3041 support disabled
Special configuration options for multi-homed hosts etc.
IPV6_ROUTER=yes|no: Controls IPv6 autoconfiguration
IPV6_AUTOCONF=yes|no: Controls IPv6 autoconfiguration
Defaults:
Global IPV6FORWARDING=yes: IPV6_AUTOCONF=no, IPV6_ROUTER=yes
Global IPV6FORWARDING=no: IPV6_AUTOCONF=yes
Optional settings for a 6to4 tunnel
IPV6TO4INIT=yes|no
Enable or disable 6to4 tunneling setup
Default: no
IPV6TO4_RELAY=<IPv4 address> (optional)
IPv4 address of the remote 6to4 relay
Note: if this is omitted, ::192.88.99.1 (the anycast relay address) is chosen
IPV6TO4_IPV4ADDR=<IPv6 address>[/<prefix length>] (optional)
Overwrite local IPv4 address which is accessible from the Internet
(optional, in case of static IPv4-NAT behind a router or other special scenarios)
IPV6TO4_MTU=<MTU for IPv6> (optional)
Controls IPv6 MTU for the 6to4 tunnel
Note: Must be greater or equal to 1280
Example:
IPV6TO4_MTU="1280"
Default: MTU of master device - 20
IPV6TO4_ROUTING="<device>-<suffix>/<prefix length> ..." (optional)
A list of routing tokens to setup proper IPv6 interfaces on the LAN
Example:
IPV6TO4_ROUTING="eth0-:0004::1/64 eth1-:0005::1/64"
Will create one address per eth0 and eth1, taking given SLA
Optional settings for a 6to4 tunnel or a ppp link
IPV6_CONTROL_RADVD=yes|no (optional)
Enable signaling radvd that the 6to4 prefix has been changed or a
preconfigured dynamic device is up or down
Default: no
IPv6-only items for static tunnel interface:
Interface name: sitX (X => 1)
IPV6INIT=yes|no
Enable or disable IPv6 configuration for this interface
Default: no
IPV6TUNNELIPV4=<IPv4 address>
Specify IPv4 address of a foreign IPv6-in-IPv4 tunnel endpoint
Example:
IPV6TUNNELIPV4="1.2.3.4"
IPV6TUNNELIPV4LOCAL=<IPv4 address>
Specify local IPv4 address of tunnel, useful on interfaces with multiple IPv4 addresses
IPV6ADDR=<IPv6 address>[/<prefix length>] (optional)
local IPv6 address of a numbered tunnel
IPV6ADDR_SECONDARIES="<IPv6 address>[/<prefix length>] ..." (optional)
A list of secondary IPv6 addresses (example see above)
IPV6_MTU=<MTU of tunnel> (optional)
Optional, dedicated MTU of this tunnel
Note: Must be greater or equal to 1280
Example:
IPV6_MTU="1280"
IPv6-only option to enable DHCPv6 client:
DHCPV6C=yes|no
This will enable the DHCPv6 features of dhclient to be run for the interface.
See man dhclient(8) and dhclient.conf(5).
DHCPV6C_OPTIONS=...
This will pass given arguments to the DHCPv6 client. For example,
"-S" option will request network information (e.g., DNS addresses)
only, not IPv6 addresses.
Ethernet-only items:
ARP=yes|no (adds 'arp' flag to ifconfig, for use with the
ethertap device)
LINKDELAY=<time in seconds>
Time that the system should pause after the specific interface is
enabled. This may be useful if one interface is connected to a
switch which has spanning tree enabled and must wait for STP to
converge before the interface should be considered usable.
BRIDGE=<br* device>
If set, the ethernet device is not assigned an address. It is added to
the specified bridge device instead.
Deprecated, but supported:
ETHTOOL_OPTS=...
Any device-specific options supported by ethtool. For example,
if you wanted to force 100Mb full duplex:
ETHTOOL_OPTS="speed 100 duplex full autoneg off"
Note that changing speed or duplex settings almost always
requires disabling autonegotiation with 'autoneg off'.
Long term, this should be done by sysadmin-written udev rules.
No longer supported:
PROMISC=yes|no (enable or disable promiscuous mode)
ALLMULTI=yes|no (enable or disable all-multicast mode)
To properly set these, use the packet socket interface.
Ethernet 802.1q VLAN items:
DEVICE=eth0.42
Initscripts use the device name for VLAN devices.
Example: eth0.42 for vlan 42 on device eth0.
Valid VLAN ID range is 0-4095. Most ethernet switches reserve
VLAN ID 1 to be used as management VLAN; starting from VLAN
ID 2 is recommended.
REORDER_HDR=yes|no
When enabled the VLAN device will move the ethernet header
around to make it look exactly like a real ethernet device.
This may help programs such as ISC dhcpd which read the raw
ethernet packet and make assumptions about the location of
bytes. If you don't need it turn it off because there
is a small performance penalty. Default is on.
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)
(meaningless with WVDIALSECT)
PPP-specific items
WVDIALSECT=<list of sections from wvdial.conf to use>
If this variable is set, then the chat script (if it
exists) is ignored, and wvdial is used to open the
PPP connection.
DEFROUTE=yes|no (set this interface as default route? yes is default)
DEBUG=yes|no (defaults to yes)
turns on/off pppd and chat (if used) debugging.
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 implies "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>
PPPOE_EXTRA = any extra arguments to pass to pppoe
PPPD_EXTRA = any extra arguments to pass to pppd
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.
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.)
RETRYCONNECT=yes|no (defaults to yes)
If this is yes, then we will re-run pppd if it exits with a
"connect script failed" status. Otherwise, only one attempt
is made to bring up the connection. Note that some connect
scripts (for example, wvdial) might do their own retries (such
as BUSY or NO DIALTONE conditions).
MAXFAIL=<number>
If this is set, this will cause ppp-watch to exit after
the specified number of attempts.
DEMAND=yes|no
Switches on demand-dialing mode using pppd's "demand" option.
IDLETIMEOUT=600
The amount of time the link needs to be inactive before pppd will
bring it down automatically.
BOOTTIMEOUT=30
The amount of time to wait at boot before giving up on the
connection.
IPPP-specific items (ISDN)
PROVIDER=<ProviderName>
USER=<Login>
PASSWORD=<Password>
ENCAP=[syncppp|]
DIALMODE=[manual|auto]
SECURE=off|on
MSN=<>
PHONE_IN=<Callback.Number>
AREACODE=<>
REGIONCODE=<>
PHONE_OUT=<PhoneNumber>
BUNDLING=off|on
HUPTIMEOUT=<number>
DNS1=<PrimaryDNS>
DNS2=<SecondaryDNS>
DOMAIN=""
LAYER=[HDLC|]
CALLBACK=off|on
CHARGEHUP=<number>
CHARGEINT=<number>
CBHUP=<number>
CBDELAY=<number>
DIALMAX=<number>
AUTH=[+pap] [-chap]
IHUP=<>
DELDEFAULTROUTE=[enabled|disabled]
CBCP=off|on
VJ=off|on
VJCCOMP=off|on
AC=off|on
PC=off|on
BSDCOMP=off|on
CCP=off|on
SLAVE_DEVICE=ippp[0-9]
ippp0 items being deprecated:
BOOT=[on|off] will be converted to ONBOOT=[yes|no] by netconf
LOCAL_IP= will be converted to IPADDR by netconf
REMOTE_IP= will be converted to GATEWAY by netconf
Wireless-specific items:
See iwconfig(8) for additional information.
MODE=[Ad-Hoc|Managed|Master|Repeater|Secondary|Monitor|Auto]
ESSID=
Defaults to "any".
NWID=
FREQ=
Ignored if MODE=Managed.
CHANNEL=
Ignored if MODE=Managed.
SENS=<sensitivity threshold>
RATE=
KEY{1,2,3,4}=<WEP key with the given index>
DEFAULTKEY=<default key index>
KEY=<default WEP key>
SECURITYMODE=[on|off|open|restricted]
RTS=[auto|fixed|off|<rts threshold>]
FRAG=[off|<fragmentation threshold>]
IWCONFIG=<other iwconfig(8) options>
SPYIPS=<list of IP addresses to monitor for link quality>
IWPRIV=<iwpriv(8) commands>
Bonding-specific items
SLAVE=yes
Specifies device as a slave
MASTER=bondXX
Specifies master device to bind to
BONDING_OPTS=
A space-separated list of options to the bonding driver for this
interface, such as:
"mode=active-backup arp_interval=60 arp_ip_target=192.168.1.1,192.168.1.2"
Tunnel-specific items:
TYPE=GRE|IPIP
MY_INNER_IPADDR=local IP address of the tunnel interface
PEER_OUTER_IPADDR=IP address of the remote tunnel endpoint
MY_OUTER_IPADDR=IP address of the local tunnel endpoint
If unspecified, an IP address is selected automatically for outgoing
tunnel packets, and incoming tunnel packets are accepted on all local
IP addresses.
PEER_INNER_IPADDR=IP address of the remote end of the tunnel interface
If this is specified, a route to PEER_INNER_IPADDR through the tunnel
is added automatically.
TTL=TTL value for tunnel packets
Default is to use the TTL of the packet transported through the tunnel
Bridge-specific items:
TYPE=Bridge
STP=off|on (see 'brctl stp')
DELAY=forward delay time in seconds (see 'brctl setfd')
BRIDGING_OPTS=
A space-separated list of bridging options for either the bridge
device, or the port device, such as:
BRIDGING_OPTS="hello_time=200 priority=65535"
for bridge devices, or
BRIDGING_OPTS="hairpin_mode=1"
for port devices.
TUN/TAP-specific items:
OWNER=<owner of the device>
/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. Calls
/etc/sysconfig/network-scripts/ifup-aliases to bring 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/ifup-routes
Set up static routes for a device.
/etc/sysconfig/network-scripts/ifup-aliases
Bring up aliases for a device.
/etc/sysconfig/network-scripts/route-<interface-name>
Contains lines that specify additional routes that should be added when the
associated interface is brought up.
The files are processed by the ifup-routes script and uses the /sbin/ipcalc
utility for all network masks and numbers. Routes are specified using the
syntax:
ADDRESSn=<network>
NETMASKn=<network/prefix mask>
GATEWAYn=<next-hop router/gateway IP address>
The "n" is expected to be consecutive positive integers starting from 0.
For example:
ADDRESS0=192.168.2.0
NETMASK0=255.255.255.0
GATEWAY0=192.168.1.1
adds a network route to the 192.168.2.0 network via the gateway at
192.168.1.1. Since you must already have a route to the network of the
gateway, there is no need to specify a device.
Note: The ifup-routes script also supports an older syntax designed to be
used directly as an argument to "/sbin/ip route add".
If no "ADDRESSn" lines are found the following will still
work:
192.168.2.0/24 dev ppp0
adds a network route to the 192.168.2.0 network through ppp0.
/etc/sysconfig/network-scripts/route6-<interface-name>
Contains lines that are arguments to "/sbin/ip -6 route add"
For example:
site-local route for network fec0:0:0:2::/64
via gateway fec0:0:0:1:0:0:0:20 (e.g. on eth0):
fec0:0:0:2::/64 via fec0:0:0:1:0:0:0:20
additional prefix configured to be on-link on eth0:
3ffe:fffe:1:2::/64 dev eth0
6to4 route for network 3ffe:ffff:1::/48, either:
3ffe:ffff:1::/48
3ffe:ffff:1::/48 via ::192.168.1.2
Note the special case of 6to4 interface: 'via [relay]' is
automatically added if explicit 'via' wasn't specified.
/etc/sysconfig/network-scripts/rule-<interface-name>
/etc/sysconfig/network-scripts/rule6-<interface-name>
Contains lines that specify additional routing rules that should be added
when the associated interface is brought up.
Each non-comment line is used directly as an argument to "/sbin/ip rule add"
or "/sbin/ip -6 rule add" for rule6 files.
Copyright 2K16 - 2K18 Indonesian Hacker Rulez
;?>)