NFSWATCH 2.0 now available

[davy at itstd.sri.com]

NFSWATCH Version 2.0 is now available for anonymous FTP from
spam.itstd.sri.com and icarus.riacs.edu in the file "pub/nfswatch.tar.Z",
and from titan.rice.edu in the directory "sun-source/nfswatch.tar.Z".  It
has also been sent to the comp.sources.unix newsgroup.

NFSWATCH allows you to monitor all NFS request traffic (the stuff
generated by clients) to a given host, or all NFS request traffic on the
local network.  This latter feature is useful for tracking how much NFS
traffic is being send through gateways, etc.

Aside from some bug fixes and performance improvements, there are several
new features in NFSWATCH due to Jeff Mogul at DECWRL:

- Support added for Ultrix 4.0 with the PFILT packet filter.

- New option "-all" allows you to watch all NFS requests on the local
  network.  Prints remote server file systems as major/minor numbers.

- Now "learns" about new file systems as it sees them go by.

- You can sort the file system display either alphabetically (as before)
  or by percent usage.

- Now works properly on SPARC systems.

- Uses the NIOCSSNAP feature of the NIT on Suns under SunOS 4.1 to reduce
  the amount of data copied around.  This is not done under SunOS 4.0.x,
  because it seems to be full of bugs, at least on the Sun-3.  A similar
  feature is used under PFILT.

NFSWATCH has been tested on the following architectures:

	Sun 3/80  SunOS 4.1
	Sun 3/280 SunOS 4.0.3

	Sun 4/20  SunOS 4.1
	Sun 4/60  SunOS 4.1
	Sun 4/260 SunOS 4.0.3
	Sun 4/380 SunOS 4.1
	Sun 4/390 SunOS 4.1

	DEC VAX   Ultrix 4.0
	DEC RISC  Ultrix 4.0

Porting NFSWATCH to other architectures should be fairly simple; you
should only have to add a module to open and initialize your variety of
packet filter, modify the packet reading loop in nfswatch.c, and modify
the file handle decoding in rpcfilter.c.  I would be especially happy if
someone who's running 4.3BSD-Reno would port NFSWATCH to that system.

Enjoy,

Dave Curry
SRI International
333 Ravenswood Avenue
Menlo Park, CA 94025
davy at itstd.sri.com