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rpcbind(8) [freebsd man page]

RPCBIND(8)						    BSD System Manager's Manual 						RPCBIND(8)

NAME
rpcbind -- universal addresses to RPC program number mapper SYNOPSIS
rpcbind [-6adiLls] [-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. 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 configura- tion 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
-6 Bind to AF_INET6 (IPv6) addresses only. -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 TCP and UDP requests. This option may be specified multiple times and is typically nec- essary when running on a multi-homed host. If no -h option is specified, 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 interface. -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 connec- tions, preventing non-privileged clients from using rpcbind to connect to services from a privileged port. -W Enable libwrap (TCP wrappers) support. NOTES
All RPC servers must be restarted if rpcbind is restarted. FILES
/var/run/rpcbind.sock SEE ALSO
rpcbind(3), netconfig(5), rpcinfo(8) BSD
March 6, 2014 BSD

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rpcbind(1M)						  System Administration Commands					       rpcbind(1M)

NAME
rpcbind - universal addresses to RPC program number mapper SYNOPSIS
rpcbind [-d] [-w] DESCRIPTION
rpcbind 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. rpcbind 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 configura- tion databases can be corrupt. Since RPC services cannot function correctly in this situation, rpcbind reports the condition and termi- nates. rpcbind maintains an open transport end for each transport that it uses for indirect calls. This is the UDP port on most systems. rpcbind can only be started by the superuser. The FMRI svc:network/rpc/bind property group config contains the following property settings: enable_tcpwrappers Specifies that the TCP wrappers facility is used to control access to TCP services. The value true enables checking. The default value for enable_tcpwrappers is false. If the enable_tcpwrappers parameter is enabled, then all calls to rpcbind originating from non-local addresses are automatically wrapped by the TCP wrappers facility. The syslog facility code daemon is used to log allowed connections (using the info severity level) and denied traffic (using the warning severity level). See syslog.conf(4) for a description of syslog codes and severity levels. The stability level of the TCP wrappers facility and its configuration files is External. As the TCP wrap- pers facility is not controlled by Sun, intrarelease incompatibilities are not uncommon. See attributes(5). verbose_logging Specifies whether the TCP wrappers facility logs all calls orjust the denied calls. The default is false. This option has no effect if TCP wrappers are not enabled. allow_indirect Specifies whether rpcbind allows indirect calls at all. By default, rpcbind allows most indirect calls, except to a number of standard services(keyserv, automount, mount, nfs, rquota, and selected NIS and rpcbind procedures). Setting allow_indirect to false causes all indirect calls to be dropped. The default is true. NIS broadcast clients rely on this functionality on NIS servers. OPTIONS
The following options are supported: -d Run in debug mode. In this mode, rpcbind does not fork when it starts. It prints additional information during operation, and aborts on certain errors. With this option, the name-to-address translation consistency checks are shown in detail. -w Do a warm start. If rpcbind aborts or terminates on SIGINT or SIGTERM, it writes the current list of registered services to /var/run/portmap.file and /var/run/rpcbind.file. Starting rpcbind with the -w option instructs it to look for these files and start operation with the registrations found in them. This allows rpcbind to resume operation without requiring all RPC services to be restarted. FILES
/var/run/portmap.file Stores the information for RPC services registered over IP based transports for warm start purposes. /var/run/rpcbind.file Stores the information for all registered RPC services for warm start purposes. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |See below. | +-----------------------------+-----------------------------+ TCP wrappers is External. SEE ALSO
smf(5), rpcinfo(1M), svcadm(1M), svccfg(1M), rpcbind(3NSL), syslog.conf(4), attributes(5), smf(5) For information on the TCP wrappers facility, see the hosts_access(4) man page, delivered as part of the Solaris operating environment in /usr/sfw/man and available in the SUNWtcpd package. NOTES
Terminating rpcbind with SIGKILL prevents the warm-start files from being written. All RPC servers are restarted if the following occurs: rpcbind crashes (or is killed with SIGKILL) and is unable to to write the warm-start files; rpcbind is started without the -w option after a graceful termination. Or, the warm start files are not found by rpcbind. The rpcbind service is managed by the service management facility, smf(5), under the service identifier svc:/network/rpc/bind Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The configuration properties of this service can be modified with svccfg(1M). SunOS 5.10 29 Oct 2004 rpcbind(1M)
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