NAME

nsrexecd − NetWorker remote save execution server

SYNOPSIS

nsrexecd [ −s server [ −s server ...  ]] [ −f serverfile ] [ −p savepath ] [ −i ]

DESCRIPTION

nsrexecd is used by savegroup(8) to start saves on NetWorker client machines.  It is normally started at boot time on each NetWorker client machine. 

nsrexecd exports an RPC-based service to remotely execute save commands.  All requests must be authenticated, and can optionally be restricted to a specific NetWorker server.  Only save requests (e.g.  save(8) or savefs(8)) are allowed. 

When command execution is requested, nsrexecd first verifies that the request is authenticated, and that it comes from a valid NetWorker server.  Next, nsrexecd verifies that the command is a save command (e.g.  save(8) or savefs(8)).  It then executes the specified command from the NetWorker binary directory.  This directory is normally determined by the location of the nsrexecd executable, but can be specified on the command line. 

OPTIONS

−s server
Only allow save requests to be initiated by the given NetWorker server. Multiple −s options may be given to allow access by several NetWorker servers.  If a NetWorker server has multiple network interfaces, it is often best to list the name of each network interface, to avoid failed saves. 

−f serverfile
Specifies a file containing a list of NetWorker servers which can initiate saves. This file should list one server name per line.

−p savepath
Tells nsrexecd to look for save commands in the savepath directory, rather than the default (the directory in which nsrexecd exists). 

−i As part of the NetWorker server authentication, the server’s network address is mapped to a name.  The name is then reverse-mapped to a network address.  The server is authenticated if and only if the original network address matches the reverse-mapped address.  The −i flag skips the address comparison thereby allowing work-arounds to misconfigured or misfeatured (i.e. Solaris) naming systems.  This option should be used with care since it may allow the NetWorker client to send its data to an unauthorized machine. 

SEE ALSO

save(8), savefs(8), savegroup(8)

NetWorker 4.1.2  —  Last change: May 1995