nsrexecd man page on DigitalUNIX

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NSREXECD(8)							   NSREXECD(8)

       nsrexecd - NetWorker client execution service

       nsrexecd	 [  -s	server	[  -s  server  ...   ]] [ -f serverfile ] [ -p
       savepath ] [ -i ] [ -r ]

       nsrexecd is used by NetWorker servers to perform	 automatic  operations
       on  NetWorker  clients.	 It  is	 currently used by savegrp(8) to start
       saves and storage node functions on NetWorker  client  machines.	  When
       storage	node  functions	 are in use, nsrexecd starts nsrmmd(8) daemons
       and nsrjb(8) commands on the host, and  responds	 to  polling  requests
       from  the  server.   See	 nsr_storage_node(5)  for additional detail on
       storage nodes.  The nsrexecd service is normally started at  boot  time
       on  each NetWorker client machine.  Since NetWorker servers are usually
       expected to be clients of themselves, nsrexecd runs  on	all  NetWorker
       servers as well.

       The  nsrexecd  service exports an RPC-based service to remotely execute
       NetWorker operations.  All requests  must  be  authenticated,  and  can
       optionally  be  restricted  to  specific	 NetWorker servers.  Only save
       requests (for example, save(8) or savefs(8)) and storage node  requests
       are allowed.

       When  command  execution is requested, nsrexecd first verifies that the
       request is authenticated, and that it  comes  from  a  valid  NetWorker
       server; the NetWorker server running on the localhost is always consid‐
       ered valid, independent from the options supplied to  nsrexecd.	 Next,
       nsrexecd	 verifies  that	 the  command  is a save command (for example,
       save(8) ).  It then executes the specified command from	the  NetWorker
       binary  directory.   This directory is normally determined by the loca‐
       tion of the nsrexecd executable, but can be specified  on  the  command

       -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 workarounds to misconfigured or misfeatured naming sys‐
	      tems.   This  option should be used with care since it may allow
	      the NetWorker  client  to	 send  its  data  to  an  unauthorized

       -f serverfile
	      Specifies	 a  file  containing a list of NetWorker servers which
	      can initiate saves.  This file should list one server  name  per
	      line.   If no -f or -s options are specified, nsrexecd looks for
	      a default file in this same format (or Mac  preferences  on  the
	      Mac client).  The location of this default file is listed in the
	      FILES section of this man page.

       -p savepath
	      Tells nsrexecd to look for save commands in the savepath	direc‐
	      tory,  rather  than the default (the directory in which nsrexecd

       -s server
	      Allows save requests to be initiated only 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 hostname corre‐
	      sponding to each network interface, to avoid failed saves.

       -r     This option should be used with EMC PowerSnap module only.  This
	      option,  would  start another instance of nsrexecd for PowerSnap
	      administration Purposes.

       /nsr/res/nsrladb		   The	resource  directory  with   attributes
				   describing  the  NetWorker nsrexecd service
				   and its resources (see nsr_la(5)).
       /nsr/res/servers		   The file containing	the  default  list  of
				   servers  that  can  back  up	 the NetWorker

       nsr_la(5), nsr_storage_node(5), nsrports(8), save(8), save(8),
       savefs(8), savegrp(8)

NetWorker 7.3.2			  Aug 23, 06			   NSREXECD(8)

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