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Old 11-15-2010, 03:51 AM   #1
kingston
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Registered: Mar 2008
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NFS issue


Hi all,

We have one nfs issue. We have a san storage, and netapp proact is managing the volumes in it. MY san team has exported one volume to my machine as a NFS mount. They are using NFS v 3. It has to come across one firewall. We have opened the ports for my lab server ip address. Both the netapp and lab server or in different network. But it is pinging with each other with the help of DNS. Now the thing is, when i try to mount it from the client side, i am getting the RPC.error:Authentication error

I disabled iptabls,ip6tables,selinux and TCP wrappers. Still i am getting this RPC and Authentication error.

Need some help
 
Old 11-15-2010, 08:27 AM   #2
onebuck
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Hi,

Sounds like a 'exports' problem, look at Linux NFS-HOWTO.
Server 3.2. Setting up the Configuration Files section & 4. Setting up an NFS Client should be helpful.
 
Old 11-19-2010, 04:05 AM   #3
kingston
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Thanks for the links..onebuck. Still the problem is there. We are looking at the DNS side now. Once it is resolved, i will update in this thread.
 
Old 11-23-2010, 07:11 AM   #4
kingston
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[Hi Gurus,

I came with one good point, just now i got reply from my SAN team, the reply is
Quote:
The problem is that mount requests are coming from ports higher than 1024 and are getting discarded as client (ie non-root level) requests. This might be happening because client-level programs are making the requests, or you are making so many simultaneous mount requests that the ports below 1024 are saturated, resulting in requests from "high" ports.

You need to allow higher port number more than 1024 on the server site.
Can some one tell me how to set this on nfs to send the requests by using the port number which lower than 1024?

Last edited by kingston; 11-23-2010 at 07:14 AM.
 
Old 11-23-2010, 08:18 AM   #5
smart_shell
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Quote:
Originally Posted by kingston View Post
Hi all,

We have one nfs issue. We have a san storage, and netapp proact is managing the volumes in it. MY san team has exported one volume to my machine as a NFS mount. They are using NFS v 3. It has to come across one firewall. We have opened the ports for my lab server ip address. Both the netapp and lab server or in different network. But it is pinging with each other with the help of DNS. Now the thing is, when i try to mount it from the client side, i am getting the RPC.error:Authentication error

I disabled iptabls,ip6tables,selinux and TCP wrappers. Still i am getting this RPC and Authentication error.

Need some help
i had some problem but i stop /etc/init.d/portsentry and restart portmap.
it started working.
 
  


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