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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | NOTES | SEE ALSO | LINUX PORT | COLOPHON |
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RPCBIND(8) BSD System Manager's Manual RPCBIND(8)
rpcbind — universal addresses to RPC program number mapper
rpcbind [-adhiLls]
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.
Normally, 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
translation-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.
-a When debugging (-d), do an abort on errors.
-d Run in debug mode. In this mode, rpcbind will log
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.
-f Do not fork and become a background process.
-h Specify specific IP addresses to bind to for UDP requests.
This option may be specified multiple times and can be used
to restrict the interfaces rpcbind will respond to. When
specifying IP addresses with -h, rpcbind will automatically
add 127.0.0.1 and if IPv6 is enabled, ::1 to the list. If
no -h option is specified, rpcbind will bind to INADDR_ANY,
which could lead to problems 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 rpcbind is controlled
via systemd's socket activation, the -h option is ignored.
In this case, you need to edit the ListenStream and
ListenDgram definitions in
/usr/lib/systemd/system/rpcbind.socket instead.
-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 interface.
-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 connections, preventing non-privileged clients
from using rpcbind to connect to services from a privileged
port.
-w Cause rpcbind to do a "warm start" by read a state file
when rpcbind starts up. The state file is created when
rpcbind terminates.
All RPC servers must be restarted if rpcbind is restarted.
rpcinfo(8)
This page is part of the rpcbind (convert RPC numbers to universal
addresses) project. Information about the project can be found at
http://sourceforge.net/projects/rpcbind/. If you have a bug report
for this manual page, see
⟨http://sourceforge.net/p/rpcbind/bugs/?source=navbar⟩. This page
was obtained from the project's upstream Git repository
⟨git://linux-nfs.org/~steved/rpcbind⟩ on 2022-12-17. (At that
time, the date of the most recent commit that was found in the
repository was 2022-07-12.) If you discover any rendering problems
in this HTML version of the page, or you believe there is a better
or more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
BSD September 14, 1992 BSD
Pages that refer to this page: statd(8)
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