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Full Discussion: TCP/UDP port range for default AIX NFS?
Operating Systems AIX TCP/UDP port range for default AIX NFS? Post 302512640 by famasutika on Monday 11th of April 2011 06:12:04 AM
Old 04-11-2011
Quote:
Originally Posted by ram1729
Can you provide me the nfs reserved ports value ?

nfso -a | grep nfs_use_reserved_ports

If nfs_use_reserved_ports=0 AIX server uses nonreserved IP port numbers above 1024 when the NFS client communicates with the NFS server.

If nfs_use_reserved_ports=1 AIX server uses nonreserved IP port numbers below 1024
when the NFS client communicates with the NFS server.
From my nfso -a output, my nfs_use_reserved_ports=0.

Is there a way to fix the NFS server/client port range so that we could have NFS setup behind a firewall?

What are the best practice for NFS setup behind a firewall?

My security team was asking whehter NFS client supports keep alive feature, whereby NFS client connection will re-establish a new connection automatically after timed out? Anyway, is there any client session timed out settings on NFS server?
 

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LEARN ABOUT REDHAT

nfsstat

nfsstat(8)						      System Manager's Manual							nfsstat(8)

NAME

       nfsstat - print NFS statistics

SYNOPSIS

       /usr/sbin/nfsstat [-anrcsz] [-o facility] ...

DESCRIPTION

       The nfsstat displays statistics kept about NFS client and server activity.

OPTIONS

       -s     Print only server-side statistics. The default is to print both server and client statistics.

       -c     Print only client-side statistics.

       -n     Print only NFS statistics. The default is to print both NFS and RPC information.

       -r     Print only RPC statistics.

       -o facility
	      Display statistics for the specified facility, which must be one of:

	      nfs    NFS protocol information, split up by RPC call.

	      rpc    General RPC information.

	      net    Network layer statistics, such as the number of received packets, number of TCP connections, etc.

	      fh     Usage  information  on  the  server's  file  handle  cache, including the total number of lookups, and the number of hits and
		     misses.

	      rc     Usage information on the server's request reply cache, including the total number of lookups, and	the  number  of  hits  and
		     misses.

EXAMPLES

FILES

       /proc/net/rpc/nfsd
	      procfs-based interface to kernel NFS server statistics.

       /proc/net/rpc/nfs
	      procfs-based interface to kernel NFS client statistics.

SEE ALSO

       rpc.nfsd(8).

AUTHOR

       Olaf Kirch, <okir@monad.swb.de>

								    05 Oct 2001 							nfsstat(8)
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