Newsgroups: comp.parallel.pvm
From: Stefan Hinker <hinker@informatik.uni-wuerzburg.de>
Subject: Re: What is a host file?
Organization: University of Wuerzburg, Germany
Date: 31 Oct 1995 10:43:22 GMT
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Message-ID: <474uka$dss@winx03.informatik.uni-wuerzburg.de>

JAIME ANTONIO MURO ALVAREZ <al178495> wrote:
>Hello.
>
>	I need know what is a host file, where in the system is it and what it's the
>name of this "host file". My problem is: I 'm  working in two machines a SUN4
>and one RS6k, and in the tow machines i have the same login, then i need make
>some configuration in this file, but, what is it?, What name have?, Where is
>it?

Hi!

For documentation on installing, configuring and running pvm, see the
pvm book at:
http://www.netlib.org/pvm3/book/node1.html
There is a FAQ at:
http://www.netlib.org/pvm3/faq_html/faq.html

Concerning your question:

In the context of pvm, the host-file is a file you create, that contains
discriptions of the hosts you want in your virtual machine.  If, as in your
case, you have the same login on both machines, chances are good you don't
need such a file, and simply add the two machines either from the pvm-console
or from within your application.

In the context of a unix-system, there are several files associated with hosts:
-  /etc/hosts : a list of ip-numbers and corresponding hostnames for your
system
    see also the manpage to "hosts"
-  the result of "ypcat hosts": eventually the same as above, 
   for yp-environments, see also the manpages to the yellow pages
-  ~/.rhosts : a file that permits remote logins from different machines
without
   asking for passwords, see also the manpage to rhosts and rsh

I hope this helps!

Greetings,
Stefan
-- 
===============================================================================
Stefan Hinker                         email: hinker@informatik.uni-wuerzburg.de
                Unix? Still working on it  :-))
===============================================================================


