102 lines
2.6 KiB
Groff
102 lines
2.6 KiB
Groff
.\" $NetBSD: sysctl.conf.5,v 1.3 2009/05/13 22:57:34 wiz Exp $
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.\"
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.\" Copyright (c) 2007 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd October 4, 2007
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.Dt SYSCTL.CONF 5
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.Os
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.Sh NAME
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.Nm sysctl.conf
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.Nd sysctl configuration file
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.Sh SYNOPSIS
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.Nm
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.Sh DESCRIPTION
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The
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.Nm
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file defines the
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.Xr sysctl 7
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kernel state tunables that can be set at boot time using
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.Xr sysctl 8
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(using the
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.Fl f
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switch)
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via the
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.Pa /etc/rc.d/sysctl
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startup script.
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.Pp
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The state to be set is described using a
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.Dq Management Information Base
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.Pq Dq MIB
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style name.
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The MIB and value must be separated by
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.Sq =
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with no whitespace, for example:
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.Pp
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.Ar name Ns Li = Ns Ar value
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.Pp
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Blank lines, lines with just
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.Ar name ,
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and comments (beginning with
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.Sq # )
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are ignored.
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Line continuations using backslash
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.Sq \e
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are permitted.
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Only integral and string values can be set.
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.\"
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.Sh FILES
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.Bl -tag -width /etc/sysctl.conf -compact
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.It Pa /etc/sysctl.conf
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The file
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.Nm
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resides in
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.Pa /etc .
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.El
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.Sh EXAMPLES
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The following is an example
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.Pa /etc/sysctl.conf
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file:
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.Pp
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.Bd -literal
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# Change max open files
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kern.maxfiles=1792
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# Run Veriexec in IDS mode
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kern.veriexec.strict=1
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# Enable IP packet forwarding
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net.inet.ip.forwarding=1
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.Ed
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.Sh SEE ALSO
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.Xr sysctl 3 ,
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.Xr rc.conf 5 ,
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.Xr sysctl 7 ,
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.Xr sysctl 8
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.Sh HISTORY
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Support for
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.Nm
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first appeared in
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.Nx 1.5 .
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