Copyright (c) 2007 The NetBSD Foundation, Inc.
All rights reserved.
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``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 FOUNDATION OR CONTRIBUTORS
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.
.Dd October 4, 2007 .Dt SYSCTL.CONF 5 .Os .Sh NAME .Nm sysctl.conf .Nd sysctl configuration file .Sh SYNOPSIS .Nm .Sh DESCRIPTION The .Nm file defines the .Xr sysctl 7 kernel state tunables that can be set at boot time using .Xr sysctl 8 (using the .Fl f switch) via the
a /etc/rc.d/sysctl startup script.
p The state to be set is described using a .Dq Management Information Base
q Dq MIB style name. The MIB and value must be separated by .Sq = with no whitespace, for example:
p .Ar name Ns Li = Ns Ar value
p
Blank lines, lines with just
.Ar name ,
and comments (beginning with
.Sq # )
are ignored.
Line continuations using backslash
.Sq \e
are permitted.
Only integral and string values can be set.
.Sh FILES
l -tag -width /etc/sysctl.conf -compact t Pa /etc/sysctl.conf The file
.Nm
resides in
a /etc . .El .Sh EXAMPLES The following is an example
a /etc/sysctl.conf file:
p d -literal # Change max open files kern.maxfiles=1792 # Run Veriexec in IDS mode kern.veriexec.strict=1 # Enable IP packet forwarding net.inet.ip.forwarding=1 .Ed .Sh SEE ALSO .Xr sysctl 3 , .Xr rc.conf 5 , .Xr sysctl 7 , .Xr sysctl 8 .Sh HISTORY Support for .Nm first appeared in .Nx 1.5 .