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RPCBIND(8) FreeBSD System Manager's Manual RPCBIND(8)
NAME
rpcbind -- universal addresses to RPC program number mapper
SYNOPSIS
rpcbind [-adiLls] [-h bindip]
DESCRIPTION
The rpcbind utility is a server that converts RPC program numbers into
universal addresses. It must be running on the host to be able to make
RPC calls on a server on that machine.
When an RPC service is started, it tells rpcbind the address at which it
is listening, and the RPC program numbers it is prepared to serve. When
a client wishes to make an RPC call to a given program number, it first
contacts rpcbind on the server machine to determine the address where RPC
requests should be sent.
The rpcbind utility should be started before any other RPC service. Nor-
mally, standard RPC servers are started by port monitors, so rpcbind must
be started before port monitors are invoked.
When rpcbind is started, it checks that certain name-to-address transla-
tion-calls function correctly. If they fail, the network configuration
databases may be corrupt. Since RPC services cannot function correctly
in this situation, rpcbind reports the condition and terminates.
The rpcbind utility can only be started by the super-user.
OPTIONS
-a When debugging (-d), do an abort on errors.
-d Run in debug mode. In this mode, rpcbind will not fork when it
starts, will print additional information during operation, and
will abort on certain errors if -a is also specified. With this
option, the name-to-address translation consistency checks are
shown in detail.
-h bindip
Specify specific IP addresses to bind to for UDP requests. This
option may be specified multiple times and is typically necessary
when running on a multi-homed host. If no -h option is speci-
fied, rpcbind will bind to INADDR_ANY, which could lead to prob-
lems on a multi-homed host due to rpcbind returning a UDP packet
from a different IP address than it was sent to. Note that when
specifying IP addresses with -h, rpcbind will automatically add
127.0.0.1 and if IPv6 is enabled, ::1 to the list.
-i ``Insecure'' mode. Allow calls to SET and UNSET from any host.
Normally rpcbind accepts these requests only from the loopback
interface for security reasons. This change is necessary for
programs that were compiled with earlier versions of the rpc
library and do not make those requests using the loopback inter-
face.
-L Allow old-style local connections over the loopback interface.
Without this flag, local connections are only allowed over a
local socket, /var/run/rpcbind.sock.
-l Turn on libwrap connection logging.
-s Cause rpcbind to change to the user daemon as soon as possible.
This causes rpcbind to use non-privileged ports for outgoing con-
nections, preventing non-privileged clients from using rpcbind to
connect to services from a privileged port.
NOTES
All RPC servers must be restarted if rpcbind is restarted.
FILES
/var/run/rpcbind.sock
SEE ALSO
rpcbind(3), rpcinfo(8)
FreeBSD 6.2 November 7, 2004 FreeBSD 6.2
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Wed Sep 19 20:35:57 BST 2007
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