Very Computer

by **adamc** » Sat, 23 May 1998 04:00:00

Hi

I am a beginner in UNIX, I wonder why Sun create NFS,i.e. what's
special functions it adds to UNIX as for I can telnet a host then use
any directories and files on the host if permitted. I am confused with
those conceptions. Please help me!

adamcow

by **Mark Land** » Sat, 23 May 1998 04:00:00

Quote:>Hi

>I am a beginner in UNIX, I wonder why Sun create NFS,i.e. what's
>special functions it adds to UNIX as for I can telnet a host then use
>any directories and files on the host if permitted. I am confused with
>those conceptions. Please help me!

When you telnet to a system, you are running the programs on that
system. But let's say I have a workstation on my desk, but I want to
manipulate files that are on some OTHER system. With NFS, I can make
file systems on that other system look like they are on my current
workstation.

This only gets really useful if you have an environment where multiple
people want to work on the same files. For instance, our company does
a lot of CAD work, designing new products. We have a bunch of
high-powered workstations with expensive graphics cards, and a large
set of drawing files that we want to make available to everyone to
work on. NFS lets us do that by putting in a central machine
containing all the drawing files, and then using NFS to make those
drawings available to all the other workstations. We can't just have
everyone telnet in to the central machine and work there, because we
wouldn't get the graphics performance we need. Plus we'd need a *VERY
BIG* central machine to run 20 copies of the high-end CAD software we
use.

---

Mark Landin "Before anyone passes judgment ...
T. D. Williamson, Inc. remember we ARE in the Arctic" --
UNIX Sys. Admin Fox Mulder during a physical exam

by **Malome Khom** » Sat, 23 May 1998 04:00:00

> Hi

> I am a beginner in UNIX, I wonder why Sun create NFS,i.e. what's
> special functions it adds to UNIX as for I can telnet a host then use
> any directories and files on the host if permitted. I am confused with
> those conceptions. Please help me!

> adamcow

Strictly speaking, neither telnet nor NFS are UNIX, rather they are
Inter-Networking (TCP/IP)facilities. Telnet as you well know lets You go
to remote hosts, and once there and permitted to you may access the
remote files. It is like that saying 'going to the mountain'. NFS on the
other hand brings the mountain to you. Other systems that do this
include Novell Netware(on PC networks), Andrew Distributed File
System(TCP/IP and DCE), and other less-known network file systems.

Malome

by **chol..** » Mon, 25 May 1998 04:00:00

Quote:>Hi

>I am a beginner in UNIX, I wonder why Sun create NFS,i.e. what's
>special functions it adds to UNIX as for I can telnet a host then use
>any directories and files on the host if permitted. I am confused with
>those conceptions. Please help me!

well, NFS is very useful.. you can use NFS is just a disk-drive..
that is shared across the network.. if you mount the NFS, you can
use the NFS drive like local drive..

if you are system-adm, you can use this to keep all user files in
same computer.. also this allows you do have a single version
of program at all times..

Charlie

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