11.31 NFS using FQDN in "share" command

[Dave Olker]

What happens when you actually resolve the non-fully-qualified hostname on both the NFS client and server system?

# nslookup rx260-16

[mvpel]

It's the nsswitch.conf and /etc/hosts files on your NFS server, not your client, that you need to concern yourself with.

I assume RX26-156 was able to ping RX260-16 by hostname when you made the nsswitch.conf change, right? What did the /etc/hosts entry for RS260-16 on RX26-156 look like?

[SoorajCleris]

Hi,

# nslookup rx260-16
Using /etc/hosts on: rx26-156

looking up FILES
Name: rx260-16
Address: 192.168.112.142
Aliases: rx260-16
==================================
/etc/hosts - rx26-156 ( I tried to use both rx260-16 and rx260-16.usa.hp.com)

16.118.114.125 rx26-156.usa.hp.com rx26-156
127.0.0.1 localhost loopback
16.118.114.250 hpvldas1 hpvldas1.usa.hp.com
192.168.112.142 rx260-16 rx260-16

=================================
Thanks
sooraj

[Dave Olker]

Do you get the exact same output on both the NFS client and server?

Is there a need to have the same hostname listed twice on the same line?

192.168.112.142 rx260-16 rx260-16

Do you get the same behavior if you change the line to:

192.168.112.142 rx260-16

on both the NFS client and server?

Dave

[Horia Chirculescu]

Hello Sooraj,

This is what I understand from the man page and tried to suggest you in my first intervention.

>Hi Steven,

>You mean to say, the manpage clear that if at >all there is dns mentioned in nsswitch we >should use FQDN?

Horia.

[SoorajCleris]

but horea , I have used the same but see the output posted above.

Regards,
Sooraj

[mvpel]

Maybe the share command allows unqualified hostnames if DNS is not used, but someone forgot to tell the nfsd team and so it doesn't allow unqualified names when making hostname-based access decisions.

But in any case, using FQDNs is a better practice in general, since it removes any ambiguity about which host you're referring to. I ran into the same situation in Nortel a few years ago, where we had five internal domain names in active use.

[SoorajCleris]

ha ha .. thats great. I am planning to tell NFSD team :)