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diff --git a/contrib/bind9/bin/named/lwresd.docbook b/contrib/bind9/bin/named/lwresd.docbook new file mode 100644 index 0000000..46314c2 --- /dev/null +++ b/contrib/bind9/bin/named/lwresd.docbook @@ -0,0 +1,300 @@ +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN"> +<!-- + - Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC") + - Copyright (C) 2000, 2001 Internet Software Consortium. + - + - Permission to use, copy, modify, and distribute this software for any + - purpose with or without fee is hereby granted, provided that the above + - copyright notice and this permission notice appear in all copies. + - + - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + - PERFORMANCE OF THIS SOFTWARE. +--> + +<!-- $Id: lwresd.docbook,v 1.6.208.2 2004/06/03 02:24:57 marka Exp $ --> + +<refentry> + <refentryinfo> + <date>June 30, 2000</date> + </refentryinfo> + + <refmeta> + <refentrytitle><application>lwresd</application></refentrytitle> + <manvolnum>8</manvolnum> + <refmiscinfo>BIND9</refmiscinfo> + </refmeta> + + <refnamediv> + <refname><application>lwresd</application></refname> + <refpurpose>lightweight resolver daemon</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>lwresd</command> + <arg><option>-C <replaceable class="parameter">config-file</replaceable></option></arg> + <arg><option>-d <replaceable class="parameter">debug-level</replaceable></option></arg> + <arg><option>-f</option></arg> + <arg><option>-g</option></arg> + <arg><option>-i <replaceable class="parameter">pid-file</replaceable></option></arg> + <arg><option>-n <replaceable class="parameter">#cpus</replaceable></option></arg> + <arg><option>-P <replaceable class="parameter">port</replaceable></option></arg> + <arg><option>-p <replaceable class="parameter">port</replaceable></option></arg> + <arg><option>-s</option></arg> + <arg><option>-t <replaceable class="parameter">directory</replaceable></option></arg> + <arg><option>-u <replaceable class="parameter">user</replaceable></option></arg> + <arg><option>-v</option></arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>DESCRIPTION</title> + <para> + <command>lwresd</command> is the daemon providing name lookup + services to clients that use the BIND 9 lightweight resolver + library. It is essentially a stripped-down, caching-only name + server that answers queries using the BIND 9 lightweight + resolver protocol rather than the DNS protocol. + </para> + <para> + <command>lwresd</command> listens for resolver queries on a + UDP port on the IPv4 loopback interface, 127.0.0.1. This + means that <command>lwresd</command> can only be used by + processes running on the local machine. By default UDP port + number 921 is used for lightweight resolver requests and + responses. + </para> + <para> + Incoming lightweight resolver requests are decoded by the + server which then resolves them using the DNS protocol. When + the DNS lookup completes, <command>lwresd</command> encodes + the answers in the lightweight resolver format and returns + them to the client that made the request. + </para> + <para> + If <filename>/etc/resolv.conf</filename> contains any + <option>nameserver</option> entries, <command>lwresd</command> + sends recursive DNS queries to those servers. This is similar + to the use of forwarders in a caching name server. If no + <option>nameserver</option> entries are present, or if + forwarding fails, <command>lwresd</command> resolves the + queries autonomously starting at the root name servers, using + a built-in list of root server hints. + </para> + </refsect1> + + <refsect1> + <title>OPTIONS</title> + + <variablelist> + <varlistentry> + <term>-C <replaceable class="parameter">config-file</replaceable></term> + <listitem> + <para> + Use <replaceable + class="parameter">config-file</replaceable> as the + configuration file instead of the default, + <filename>/etc/resolv.conf</filename>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-d <replaceable class="parameter">debug-level</replaceable></term> + <listitem> + <para> + Set the daemon's debug level to <replaceable + class="parameter">debug-level</replaceable>. + Debugging traces from <command>lwresd</command> become + more verbose as the debug level increases. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-f</term> + <listitem> + <para> + Run the server in the foreground (i.e. do not daemonize). + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-g</term> + <listitem> + <para> + Run the server in the foreground and force all logging + to <filename>stderr</filename>. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-n <replaceable class="parameter">#cpus</replaceable></term> + <listitem> + <para> + Create <replaceable + class="parameter">#cpus</replaceable> worker threads + to take advantage of multiple CPUs. If not specified, + <command>lwresd</command> will try to determine the + number of CPUs present and create one thread per CPU. + If it is unable to determine the number of CPUs, a + single worker thread will be created. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-P <replaceable class="parameter">port</replaceable></term> + <listitem> + <para> + Listen for lightweight resolver queries on port + <replaceable class="parameter">port</replaceable>. If + not specified, the default is port 921. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-p <replaceable class="parameter">port</replaceable></term> + <listitem> + <para> + Send DNS lookups to port <replaceable + class="parameter">port</replaceable>. If not + specified, the default is port 53. This provides a + way of testing the lightweight resolver daemon with a + name server that listens for queries on a non-standard + port number. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-s</term> + <listitem> + <para> + Write memory usage statistics to <filename>stdout</filename> + on exit. + </para> + <note> + <para> + This option is mainly of interest to BIND 9 developers + and may be removed or changed in a future release. + </para> + </note> + </listitem> + </varlistentry> + + <varlistentry> + <term>-t <replaceable class="parameter">directory</replaceable></term> + <listitem> + <para> + <function>chroot()</function> to <replaceable + class="parameter">directory</replaceable> after + processing the command line arguments, but before + reading the configuration file. + </para> + <warning> + <para> + This option should be used in conjunction with the + <option>-u</option> option, as chrooting a process + running as root doesn't enhance security on most + systems; the way <function>chroot()</function> is + defined allows a process with root privileges to + escape a chroot jail. + </para> + </warning> + </listitem> + </varlistentry> + + <varlistentry> + <term>-u <replaceable class="parameter">user</replaceable></term> + <listitem> + <para> + <function>setuid()</function> to <replaceable + class="parameter">user</replaceable> after completing + privileged operations, such as creating sockets that + listen on privileged ports. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term>-v</term> + <listitem> + <para> + Report the version number and exit. + </para> + </listitem> + </varlistentry> + + </variablelist> + + </refsect1> + + <refsect1> + <title>FILES</title> + + <variablelist> + + <varlistentry> + <term><filename>/etc/resolv.conf</filename></term> + <listitem> + <para> + The default configuration file. + </para> + </listitem> + </varlistentry> + + <varlistentry> + <term><filename>/var/run/lwresd.pid</filename></term> + <listitem> + <para> + The default process-id file. + </para> + </listitem> + </varlistentry> + + </variablelist> + + </refsect1> + + <refsect1> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>named</refentrytitle> + <manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>lwres</refentrytitle> + <manvolnum>3</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>resolver</refentrytitle> + <manvolnum>5</manvolnum> + </citerefentry>. + </para> + </refsect1> + + <refsect1> + <title>AUTHOR</title> + <para> + <corpauthor>Internet Systems Consortium</corpauthor> + </para> + </refsect1> + +</refentry> + + +<!-- + - Local variables: + - mode: sgml + - End: +--> |
