RPCBIND(8) BSD System Manager's Manual RPCBIND(8)
NAME
rpcbind -- universal addresses to RPC program number mapper
SYNOPSIS
rpcbind [-dilLs]
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 may be corrupt. Since RPC services cannot function correctly in this situation, rpcbind reports the condition and terminates.
rpcbind can only be started by the super-user.
Access control is provided by /etc/hosts.allow and /etc/hosts.deny, as described in hosts_access(5) with daemon name rpcbind.
OPTIONS
-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. With this option, the name-to-address translation consistency checks are shown in detail.
-i ``insecure'' mode. Allows 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 Turns on libwrap connection logging.
-s Causes 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.
-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
NOTES
All RPC servers must be restarted if rpcbind is restarted.
FILES
/var/run/rpcbind.sock
/etc/hosts.allow explicit remote host access list.
/etc/hosts.deny explicit remote host denial of service list.
SEE ALSO
rpcbind(3), hosts_access(5), hosts_options(5), netconfig(5), rpcinfo(8)
BSD
October 19, 2008 BSD