🚀 go-pugleaf

In article <krz.728034495@scorpion.ac.cowan.edu.au>, krz@cowan.edu.au (K.WOZNIAK) writes:
> 
> The "AIX Communication Handbook" (red book) proclaimes that:
> (page 260)
> "NFS system servers are easy. Basically [...] when new client hosts are added
> to the network, update the /etc/exports to allow those clients to 
> access the file systems on the NFS server"  
> 
> It simply does not work. New entries are ignored. 
> Am I forgetting about something?
 
How about running the '/usr/etc/exportfs -a' command to resync the
/etc/exports file with the /etc/xtab file.

Additional flags on the /usr/etc/exportfs command are:
   -a   All.  Exports all directories listed in the /etc/exports file.
   -v   Verbose.  Prints the name of each directory as it is exported or 
        unexported.
   -u   Unexports the directories you specify.  If used with -a, unexports
        all directories.
   -i   Ignore /etc/exports file and exports the directory specified
        on the command line.
   -o   options for the exported directory.

Possible problems on NON-WORLD exported file systems could be:

Check that the 'host' command can resolve system names correctly. 
Enter 'host hostname' and check that it show IP address correctly.
THEN.. try 'host ip.addr' using that hosts IP address and make sure that
the hostname for that IP addresses is correct.  This is VITAL for any
filesystem that is NOT exported WORLD.  Insure that multihomed (more than
one network interface card) machines have ALL IP addresses for that host 
resolve correctly back to the SAME hostname that was specified in the
/etc/exports file.  If running YP or DNS, you might need to specify the
fully qualified hostname in the /etc/exports file.

> It may be that my problem is trivial, but I can not figure out
> what is happening. In addition it seems that there is no manual 
> for NFS on our continent. 

Wipping out my RT NFS manual and looking on the cover I see:

IBM AIX/RT  Network FIle System   Version 1.2
AIX/RT Network FIle System Reference Guide
First Edition (March 1990)

Manual number is: SC23-2321

IBMLINK online PUBS lookup indicates that the manual has been obsoleted 
as of 05/92.  (It cost $22.00 U.S. Dollars originally).

It may not be available for purchase anywhere other than on a asis stock basis.

Later,
markw
-- 
Mark Whetzel     My comments are my own, not my company's.
Western Geophysical - A division of Western Atlas International,
A Litton/Dresser Company           DOMAIN addr: markw@airgun.wg.waii.com
VOICE: (713) 963-2544		   UUNET address:  uunet!airgun!markw

I know, bad form, following up to my own post, but another thought ..

In article <krz.728034495@scorpion.ac.cowan.edu.au>,
     krz@cowan.edu.au (K.WOZNIAK) writes:
> It [NFS 1.2 ] simply does not work. New entries are ignored. 
> Am I forgetting about something?

Are the systems you are exporting to pre 3.0? (RT's prior to V1.2 NFS?)

Reading in /etc/rc.nfs, I see the following lines on one of our RT's
running NFS V1.2:
 
===================== start partial  cut of /etc/rc.nfs =====================
#
# If nfs daemon is executable and /etc/exports file exists,
# become nfs server.
#
if [ -x /usr/etc/nfsd -a -f /etc/exports ]; then
        > /etc/xtab
        /usr/etc/exportfs -a
        /usr/etc/nfsd 8; echo ' nfsd\c'                         >/dev/console
# The following two lines will start rpc.mountd and enable port
# checking. Turning on port checking will deny access for pre-3.0
# NFS clients. Comment out the following two lines if you have
# pre-3.0 clients.
        /usr/etc/rpc.mountd
        echo "nfs_portmon/W1" | adb -w /unix /dev/kmem          >/dev/null
# Uncomment the following line for pre-3.0 NFS clients
        #/usr/etc/rpc.mountd -n
fi
========================== end cut of /etc/rc.nfs ============================

Mountd may be denying the mount, Humm?

Later,
markw
-- 
Mark Whetzel     My comments are my own, not my company's.
Western Geophysical - A division of Western Atlas International,
A Litton/Dresser Company           DOMAIN addr: markw@airgun.wg.waii.com
VOICE: (713) 963-2544		   UUNET address:  uunet!airgun!markw

In article <krz.728034495@scorpion.ac.cowan.edu.au> krz@cowan.edu.au (K.WOZNIAK) writes:
>
>The "AIX Communication Handbook" (red book) proclaimes that:
>(page 260)
>"NFS system servers are easy. Basically [...] when new client hosts are added
>to the network, update the /etc/exports to allow those clients to 
>access the file systems on the NFS server"  
>
>It simply does not work. New entries are ignored. 
>Am I forgetting about something?
>
>It may be that my problem is trivial, but I can not figure out
>what is happening. In addition it seems that there is no manual 
>for NFS on our continent. 

You need to tell the daemons that are running to re-read the exports file.
do this with the command '/usr/etc/exportfs -a' This says to add all entries
in /etc/exports to the list of exported directories.

Hope it helps,
-ELiot
>
>Help will be greatly appreciated,
>--
>Mr Krzysztof Wozniak        ,-_|\      E-mail: K.WOZNIAK@cowan.edu.au
>Edith Cowan University     /     \      Phone: 61-9-370 6366 
>Mt.Lawley WA, 6050         $_,-._/        Fax: 61-9-370 2910 
>Australia                       o


-- 
Eliot Wilson      Univ. of Cincinnati      UG Computer Science
   A-in't         IBM Cincinnati AIX Open Systems Solution Team (a.k.a. limbo)
   I-t	          Internet:   		    VNET:   
   X-citing       ewilson@ucunix.san.uc.edu      supewils@DETVMIC1