'\" te
.\" Copyright (c) 2001, Sun Microsystems, Inc. All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
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.TH ncaport.conf 4 "30 Jul 2001" "SunOS 5.11" "File Formats"
.SH NAME
ncaport.conf \- ncaport configuration file
.SH SYNOPSIS
.LP
.nf
\fB/etc/nca/ncaport.conf\fR
.fi

.SH DESCRIPTION
.sp
.LP
The \fBncaport.conf\fR file is used to configure the IP addresses and ports
that the Solaris Network Cache and Acceleration (NCA) kernel module services.
The file contains two fields, key and value, in the format of
\fBncaport=\fIipaddress\fR/\fIport\fR\fR. IPv4 addresses must be in the dot
notation \fId\fR.\fId\fR.\fId\fR.\fId\fR. IPv6 addresses must be in one of the
three conventional forms (see \fBinet_pton\fR(3SOCKET)). If an asterisk
(\fB*\fR) is used for an IP address, it is interpreted as \fBINADDR_ANY\fR,
which matches any IP address.
.sp
.LP
A web server uses the environment variable \fBLD_PRELOAD\fR and the
\fBncaport.conf\fR configuration file to convert an \fBAF_INET\fR socket to an
\fBAF_NCA\fR socket. \fBLD_PRELOAD\fR enables the NCA socket utility library to
be loaded before \fBlibsocket.so.1\fR. See the \fBncad_addr\fR(4) for details.
When a web server issues the \fBbind\fR(3SOCKET) system call, it is intercepted
by the interposition library \fBncad_addr.so\fR. If the bind address is in the
\fBncaport.conf\fR file, the \fBAF_INET\fR socket is converted to a
\fBAF_NCA\fR socket.
.SH EXAMPLES
.LP
\fBExample 1 \fRSample \fBncaport.conf\fR File
.sp
.LP
The following is a sample \fBncaport.conf\fR file:

.sp
.in +2
.nf
#
# NCA Kernel Module Port Configuration File
#
ncaport=1080:0:0:0:8:800:200C:417A/100
ncaport=192.168.84.71/80
ncaport=*/9000
.fi
.in -2
.sp

.SH SEE ALSO
.sp
.LP
\fBnca\fR(1), \fBbind\fR(3SOCKET), \fBinet_pton\fR(3SOCKET),
\fBncad_addr\fR(4), \fBattributes\fR(5)
.SH NOTES
.sp
.LP
For those web servers that use \fBAF_NCA\fR sockets, the NCA port configuration
described here has no effect.
.sp
.LP
NCA does not currently support IPv6. Any IPv6 addresses in the file
\fBncaport.conf\fR are ignored.