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Special Forums News, Links, Events and Announcements Software Releases - RSS News bind 9.5.0 (Current branch)
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Old 06-10-2008
bind 9.5.0 (Current branch)
The Berkeley Internet Name Domain (BIND) implements an Internet name server for Unix operating systems. The BIND consists of a server (or `daemon') called `named' and a resolver library. A name server is a network service that enables clients to name resources or objects and share this information with other objects in the network.License: BSD License (original)Changes:
This version has a number of new features including GSS-TSIG support (RFC 3645), DHCID support, experimental HTTP server and statistics support for named via XML, more detailed statistics counters that are compatible with the ones supported in BIND 8, faster ACL processing, use of Doxygen to generate internal documentation, an efficient LRU cache cleaning mechanism, and NSID support (RFC 5001).Image

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lwresd

lwresd(1M)																lwresd(1M)

NAME

       lwresd - lightweight resolver daemon

SYNOPSIS

       config-file] debuglevel] pid-file] ncpus] query-port] port] directory] user-id]

DESCRIPTION

       The  daemon provides name lookup services for 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.

       listens for resolver queries on a UDP port on the IPv4 loopback interface, 127.0.0.1.  This means that can only be used by  processes  run-
       ning on the local machine.  By default, UDP port number 921 is used for lightweight resolver requests and responses.

       Incoming  lightweight  resolver	requests  are  decoded by which then resolves them using the DNS protocol.  When the DNS lookup completes,
       encodes the answers from the name servers in the lightweight resolver format and returns them to the client that made the original request.

       If the configuration file contains any entries, sends recursive DNS queries to those servers.  This is similar to the use of forwarders	in
       a  caching  name  server.   If  no entries are present, or if forwarding fails, resolves the queries autonomously starting at the root name
       servers, using a compiled-in list of root-server hints.

   Options
       Use	 config-file as the configuration file.  The default is

       Set the debug level to
		 debuglevel.  Debugging traces from become more verbose as the debug level increases.

       Run	 in the foreground.

       Run	 in the foreground and force all logging to standard error.

       Write the daemon's process ID to
		 pid-file.  The default is

       Create	 ncpus worker threads to take advantage of multiple CPUs.  By default, tries to determine the number of CPUs present  and  creates
		 one thread per CPU.  If it cannot determine the number of CPUs, it creates a single worker thread.

       Send DNS lookups to port number
		 query-port  when  querying  name servers.  This provides a way of testing the lightweight resolver daemon with a name server that
		 listens for queries on a nonstandard port number.

       Listen for lightweight resolver queries on the
		 loopback interface using UDP port number port.  The default is port 921.

       Write memory usage statistics to standard output on exit.
		 This option is only of interest to BIND 9 developers and may be removed or changed in a future release.

       Change root to
		 directory immediately after reading the configuration file (see chroot(2)).

       Run as	 user-id, which is a user name or numeric ID that must be present in the password file.  changes its user-id after it has  carried
		 out  any  privileged operations, such as writing the process-ID file or binding a socket to a privileged port (typically any port
		 less than 1024).

   Note
       is a daemon for lightweight resolvers, not a lightweight daemon for resolvers.

AUTHOR

       was developed by the Internet Systems Consortium (ISC).

FILES

       Default resolver configuration file

       Default process-id file

SEE ALSO

       named(1M), chroot(2).

       available online at

       available from the Internet Systems Consortium at

								     BIND 9.3								lwresd(1M)