.\" Copyright (c) 1995
.\"	Jordan K. Hubbard
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"     $Id: rc.conf.5,v 1.6 1997/11/07 20:45:48 sef Exp $
.\"
.Dd April 26, 1997
.Dt RC.CONF 5
.Os FreeBSD 2.2.2
.Sh NAME
.Nm rc.conf
.Nd local configuration information.
.Sh DESCRIPTION
The file
.Nm rc.conf
contains descriptive information about the local host name, configuration
details for any potential network interfaces and which services should be
started up at system initial boot time.  In new installations, the
.Nm rc.conf
file is generally initialized by the system installation utility:
.Pa /stand/sysinstall .
.Pp
It is the duty of the system administrator to properly maintain this file
as changes occur on the local host.
.Sh FILES
.Bl -tag -width /etc/rc.conf -compact
.It Pa /etc/rc.conf
.El
.Sh DESCRIPTION
The purpose of
.Nm
is not to run commands or perform system startup actions
directly.  Instead, it is included by the
various generic startup scripts in
.Pa /etc
which conditionalize their
internal actions according to the settings found there.
.Pp
The following list provides a name and short description for each
variable you can set in the
.Nm
file:
.Bl -tag -width Ar
.It Ar swapfile
(str) If set to
.Ar NO
then no swapfile is installed, otherwise the value is used as the full
pathname to a file to use for additional swap space.
.It Ar apm_enable
(bool) If set to
.Ar YES ,
enable support for Automatic Power Management with
the
.Xr apm 8
command.
.It Ar pccard_enable
(bool) If set to
.Ar YES ,
enable PCCARD support at boot time.
.It Ar pccard_mem
(str) Set to PCCARD controller memory address or
.Ar DEFAULT
for the default value.
.It Ar pccard_ifconfig
(str) List of ethernet devices (e.g.
.Ar "ed0 ed1 ep0 ..." )
which should be dynamically ifconfig'd on insertion or boot.
.It Ar local_startup
(str) List of directories to search for startup script files.
.It Ar local_periodic
(str) List of directories to search for periodic scripts (3.0 only).
.It Ar hostname
(str) The Fully Qualified Domain Name of your host on the network.
This should almost certainly be set to something meaningful, even if
you've no network connected.
.It Ar nisdomainname
(str) The NIS domainname of your host, or
.Ar NO
if you're not running NIS.
.It Ar firewall_enable
(bool) Set to
.Ar NO
if you don't want have firewall rules loaded at startup, or 
.Ar YES 
if you do.
If set to
.Ar YES ,
and the kernel was not built with IPFIREWALL, the ipfw
kernel module will be loaded.
.It Ar firewall_type
(str) Names the firewall type from the selection in 
.Pa /etc/rc.firewall ,
or the file which contains the local firewall ruleset.  Valid selections
from 
.Pa /etc/rc.firewall ,
are ``open'' - unrestricted IP access; ``closed'' - all IP services disabled,
except via lo0; ``client'' - basic protection for a workstation; ``simple'' -
basic protection for a LAN.  If a filename is specified, the full path 
must be given.
.It Ar firewall_quiet
(bool) Set to 
.Ar YES
to disable the display of ipfw rules on the console during boot.
.It Ar tcp_extensions
(bool) Set to
.Ar YES
by default, this enables certain TCP options as described by
Internet RFCs 1323 and 1644.  If you have problems with connections
randomly hanging or other weird behavior of such nature, you might
try setting this to
.Ar NO
and seeing if that helps.  Some hardware/software out there is known
to be broken with respect to these options.
.It Ar network_interfaces
(str) Set to the list of network interfaces to configure on this host.
For example, if you had a loopback device (standard) and an SMC Elite
Ultra NIC, you might have this set to
.Qq Ar "lo0 ed0"
for the two interfaces.  An 
.No ifconfig_ Ns Em interface
variable is also assumed to exist for each value of 
.Em interface .
It is also possible to add IP alias entries here in cases where you
want a single interface to have multiple IP addresses registered against
it.
Assuming that the interface in question was ed0, it might look
something like this:
.Bd -literal
ifconfig_ed0_alias0="inet 127.0.0.253 netmask 0xffffffff" 
ifconfig_ed0_alias1="inet 127.0.0.254 netmask 0xffffffff"

.Ed
And so on.  For each ifconfig_<interface>_alias<n> entry that is
found, its contents are passed to
.Xr ifconfig 8 .
Execution stops at the first unsuccessful access, so if you
had something like:
.Bd -literal
ifconfig_ed0_alias0="inet 127.0.0.251 netmask 0xffffffff"
ifconfig_ed0_alias1="inet 127.0.0.252 netmask 0xffffffff"
ifconfig_ed0_alias2="inet 127.0.0.253 netmask 0xffffffff"
ifconfig_ed0_alias4="inet 127.0.0.254 netmask 0xffffffff"

.Ed
Then note that alias4 would \fBnot\fR be added since the search would
stop with the missing alias3 entry.
.It Ar syslogd_enable
(bool) If set to
.Ar YES ,
run the
.Xr syslogd 8
daemon.
.It Ar syslogd_flags
(str) if syslogd_enable is set to
.Ar YES ,
these are the flags to pass to
.Xr syslogd 8 .
.It Ar inetd_enable
(bool) If set to
.Ar YES ,
run the
.Xr inetd 8
daemon.
.It Ar inetd_flags
(str) if inetd_enable is set to
.Ar YES ,
these are the flags to pass to
.Xr inetd 8 .
.It Ar named_enable
(bool) If set to
.Ar YES ,
run the
.Xr named 8
daemon.
.It Ar named_flags
(str) if
.Ar named_enable
is set to
.Ar YES ,
these are the flags to pass to
.Xr named 8 .
.It Ar kerberos_server_enable
(bool) Set to
.Ar YES
if you want to run a Kerberos authentication server
at boot time.
.It Ar kadmind_server_enable
.Ar YES
if you want to run
.Xr kadmind 8
the Kerberos Administration Daemon); set to
.Ar NO
on a slave server.
.It Ar kerberos_stash
(str)
If
.Ar YES ,
instruct the Kerberos servers to use the stashed master key instead of
prompting for it (only if
.Ar kerberos_server_enable
is set to
.Ar YES ,
and is used for both
.Xr kerberos 1
and
.Xr kadmind 8 ).
.It Ar rwhod_enable
(bool) If set to
.Ar YES ,
run the
.Xr rwhod 8
daemon at boot time.
.It Ar amd_enable
(bool) If set to
.Ar YES ,
run the
.Xr amd 8
daemon at boot time.
.It Ar amd_flags
(str) If
.Ar amd_enable
is set to
.Ar YES ,
these are the flags to pass to it.  Use the \fBinfo amd\fR
command for more information.
.It Ar nfs_client_enable
(bool) If set to
.Ar YES ,
run the NFS client daemons at boot time.
.It Ar nfs_client_flags
(str) If
.Ar nfs_client_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr nfsiod 8
daemon.
.It Ar nfs_server_enable
(bool) If set to
.Ar YES ,
run the NFS server daemons at boot time.
.It Ar nfs_server_flags
(str) If
.Ar nfs_server_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr nfsd 8
daemon.
.It Ar weak_mountd_authentication
(bool) If set to
.Ar YES ,
allow services like \fBPCNFSD\fR to make non-privileged mount
requests.
.It Ar nfs_reserved_port_only
(bool) If set to
.Ar YES ,
provide NFS services only on a secure port.
.It Ar rcp_lockd_enable
(bool) If set to
.Ar YES
and also an NFS server, run
.Xr rpc.lockd 8
at boot time.
.It Ar rcp_statd_enable
(bool) If set to
.Ar YES
and also an NFS server, run
.Xr rpc.statd 8
at boot time.
.It Ar portmap_enable
(bool) If set to
.Ar YES ,
run the
.Xr portmap 8
service at boot time.
.It Ar portmap_flags
(str) If
.Ar portmap_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr portmap 8
daemon.
.It Ar xtend_enable
(bool) If set to
.Ar YES
then run the
.Xr xtend 8 
daemon at boot time.
.It Ar xtend_flags
(str) If
.Ar xtend_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr xtend 8
daemon.
.It Ar timed_enable
(boot) if
.Ar YES
then run the
.Xr timed 8
service at boot time.  This command is intended for networks of
machines where a consistent
.Qq "network time"
for all hosts must be established.  This is often useful in large NFS
environments where time stamps on files are expected to be consistent
network-wide.
.It Ar timed_flags
(str) If
.Ar timed_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr timed 8
service.
.It Ar ntpdate_enable
(bool) If set to
.Ar YES ,
run ntpdate at system startup.  This command is intended to
synchronize the system clock only
.Ar once
from some standard reference.  An option to set this up initially
(from a list of known servers) is also provided by the
.Pa /stand/sysinstall
program when the system is first installed.
.It Ar ntpdate_flags
(str) If
.Ar ntpdate_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr ntpdate 8
command (typically a hostname).
.It Ar xntpd_enable
(bool) If set to
.Ar YES
then run the
.Xr xntpd 8
command at boot time.
.It Ar xntpd_flags
(str) If
.Ar xntpd_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr xntpd 8
daemon.
.It Ar tickadj_enable
(bool) If set to
.Ar YES
then run the
.Xr tickadj 8
command at system boot time.
.It Ar tickadj_flags
(str) If
.Ar tickadj_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr tickadj 8
command.
.It Ar nis_client_enable
(bool) If set to
.Ar YES
then run the
.Xr ypbind 8
service at system boot time.
.It Ar nis_client_flags
(str) If
.Ar nis_client_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr ypbind 8
service.
.It Ar nis_ypset_enable
(bool) If set to
.Ar YES
then run the
.Xr ypset 8
daemon at system boot time.
.It Ar nis_ypset_flags
(str) If
.Ar nis_ypset_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr ypset 8
daemon.
.It Ar nis_server_enable
(bool) If set to
.Ar YES
then run the
.Xr ypserv 8
daemon at system boot time.
.It Ar nis_server_flags
(str) If
.Ar nis_server_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr ypserv 8
daemon.
.It Ar nis_ypxfrd_enable
(bool) If set to
.Ar YES
then run the
.Xr ypxfrd 8
daemon at system boot time.
.It Ar nis_ypxfrd_flags
(str) If
.Ar nis_ypxfrd_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr ypxfrd 8
daemon.
.It Ar nis_yppasswdd_enable
(bool) If set to
.Ar YES
then run the
.Xr yppasswdd 8
daemon at system boot time.
.It Ar nis_yppasswdd_flags
(str) If
.Ar nis_yppasswdd_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr yppasswdd 8
daemon.
.It Ar defaultrouter
(str) If not set to
.Ar NO
then create a default route to this host name or IP address (use IP
address value if you also require this router to get to a name
server!)
.It Ar static_routes
(str) Set to the list of static routes you would like to add at system
boot time.  If not set to
.Ar NO
then for each whitespace separated element in the value, a 
.No route_ Ns em element
variable is assumed to exist for each instance
of 
.Em element , 
and will later be passed to a ``route add'' operation.
.It Ar gateway_enable
(bool) If set to
.Ar YES ,
then configure host to at as an IP router, e.g. to forward packets
between interfaces.
.It Ar router_enable
(bool) If set to
.Ar YES
then run a routing daemon of some sort, based on the
settings of
.Ar router
and
.Ar router_flags .
.It Ar router
(str) If
.Ar router_enable
is set to
.Ar YES ,
this is the name of the routing daemon to use.
.It Ar router_flags
(str) If
.Ar router_enable
is set to
.Ar YES ,
these are the flags to pass to the routing daemon.
.It Ar mrouted_enable
(bool) If set to
.Ar YES
then run the multicast routing daemon,
.Xr mrouted 8 .
.It Ar mrouted_flags
(str) If
.Ar mrouted_enable
is set to
.Ar YES ,
these are the flags to pass to the multicast routing daemon.
.It Ar ipxgateway_enable
(bool) If set to
.Ar YES
then enable the routing of IPX traffic.
.It Ar ipxrouted_enable
(bool) If set to
.Ar YES
then run the
.Xr ipxrouted 8
daemon at system boot time.
.It Ar ipxrouted_flags
(str) If
.Ar ipxrouted_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr ipxrouted 8
daemon.
.It Ar keymap
(str) If set to
.Ar NO
then no keymap is installed, otherwise the value is used to install
the keymap file in 
.Pa /usr/share/syscons/keymaps/<value>.kbd
.It Ar keyrate
(str) The keyboard repeat speed.  Set to
.Ar slow ,
.Ar normal ,
.Ar fast
or
.Ar NO
if the default behavior is desired.
.It Ar keychange
(str) If not set to
.Ar NO ,
attempt to program the function keys with the value.  The value should
be a single string of the form:
.Qq Ar "<funkey_number> <new_value> [<funkey_number> <new_value>]..."
.It Ar cursor
(str) Can be set to the value of
.Ar normal ,
.Ar blink ,
.Ar destructive
or
.Ar NO
to set the cursor behavior explicitly or choose the default behavior.
.It Ar scrnmap
(str) If set to
.Ar NO
then no screen map is installed, otherwise the value is used to install
the screen map file in 
.Pa /usr/share/syscons/scrnmaps/<value> .
.It Ar font8x16
(str) If set to
.Ar NO
then the default 8x16 font value is used for screen size requests, otherwise
the value in 
.Pa /usr/share/syscons/fonts/<value>
is used.
.It Ar font8x14
(str) If set to
.Ar NO
then the default 8x14 font value is used for screen size requests, otherwise
the value in
.Pa /usr/share/syscons/fonts/<value>
is used.
.It Ar font8x8
(str) If set to
.Ar NO
then the default 8x8 font value is used for screen size requests, otherwise
the value in
.Pa /usr/share/syscons/fonts/<value>
is used.
.It Ar blanktime
(int) If set to
.Ar NO
then the default screen blanking interval is used, otherwise it is set
to 
.Ar value 
seconds.
.It Ar saver
(str) If not set to
.Ar NO ,
this is the actual screen saver to use (blank, snake, daemon, etc).
.It Ar moused_type
(str) If not set to
.Ar NO ,
this is the type of mouse you would like to use for doing
cut/paste selection on the console.
It should be chosen from the following list of types:
.Bd -literal
microsoft        Microsoft mouse
mousesystems     Mouse systems Corp mouse
mmseries         MM Series mouse
logitech         Logitech mouse
busmouse         A bus mouse
mouseman         Logitech MouseMan and TrackMan
ps/2             PS/2 mouse
mmhittab         MM HitTablet

.Ed
It should also be noted that while this is enabled, any
other client of the mouse (such as an X server) should access
the mouse through the virtual mouse device:
.Pa /dev/sysmouse
and configure it as a mousesystems type mouse, since all
mouse data is converted to this single canonical format when
using
.Xr moused 8 .
.It Ar moused_port
(str) If
.Ar moused_type
is set, this is the actual port the mouse is on.
It might be
.Pa /dev/cuaa0
for a COM1 serial mouse or
.Pa /dev/psm0
for a PS/2 mouse, for example.
.It Ar moused_flags
(str) If
.Ar moused_type
is set, these are the additional flags to pass to the
.Xr moused 8
daemon.
.It Ar cron_enable
(bool) If set to
.Ar YES
then run the
.Xr cron 8
daemon at system boot time.
.It Ar lpd_enable
(bool) If set to
.Ar YES
then run the
.Xr lpd 8
daemon at system boot time.
.It Ar lpd_flags
(str) If
.Ar lpd_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr lpd 8
daemon.
.It Ar sendmail_enable
(bool) If set to
.Ar YES
then run the
.Xr sendmail 8
daemon at system boot time.
.It Ar sendmail_flags
(str) If
.Ar sendmail_enable
is set to
.Ar YES ,
these are the flags to pass to the
.Xr sendmail 8
daemon.
.It Ar savecore_enable
(bool) If set to
.Ar YES
then save kernel crashdumps for debugging purposes when the system
comes back up after a crash.  Crash images are typically stored in the
.Pa /var/crash
directory.
.It Ar dumpdev
(str) If not set to
.Ar NO
then point kernel crash-dumps at the swap device
specified as 
.Em value .
.It Ar check_quotas
(bool) Set to
.Ar YES
if you want to enable user disk quota checking via the 
.Xr quotacheck 8
command.
.It Ar accounting_enable
(bool) Set to
.Ar YES
if you wish to enable system accounting through the 
.Xr accton 8
facility.
.It Ar ibcs2_enable
(bool) Set to
.Ar YES
if you wish to enable iBCS2 (SCO) binary emulation at system initial boot
time.
.It Ar linux_enable
(bool) Set to
.Ar YES
if you wish to enable Linux/ELF binary emulation at system initial
boot time.
.It Ar rand_irqs
(str) Set to the list of IRQs to monitor for random number creation
(see the man page for
.Xr rndcontrol 8 ).
.It Ar clear_tmp_enable
(bool) Set to
.Ar YES
if you want
.Pa /tmp
to be cleaned at startup.

.Sh SEE ALSO
.Xr gdb 1 ,
.Xr info 1 ,
.Xr exports 5 ,
.Xr accton 8 ,
.Xr amd 8 ,
.Xr gated 8 ,
.Xr ifconfig 8 ,
.Xr named 8 ,
.Xr ntpdate 8 ,
.Xr pcnfsd 8 ,
.Xr quotacheck 8 ,
.Xr rc 8 ,
.Xr rndcontrol 8 ,
.Xr route 8 ,
.Xr routed 8 ,
.Xr rwhod 8 ,
.Xr sendmail 8 ,
.Xr swapon 8 ,
.Xr timed 8 ,
.Xr vnconfig 8 ,
.Xr xntpd 8 ,
.Xr xtend 8 ,
.Xr ypserv 8 ,
.Xr ypset 8
.Sh HISTORY
The
.Nm
file appeared in
.Bx 2.2.2 .

.Sh AUTHOR
Jordan K. Hubbard.