NFS problem

[Joaquin Martinez_1]

Hi all. I've got recently a requeriment where I need to share a directory on one of my servers. I have already added the directory to /etc/exports but when I try to mount it from another node on the network it says

Cannot talk to mount server at xxxx: RPC: Authentication error; why = Server rejected credential

I have checked and both RPC and NFS is running on the machine. Tru64 version is V5.1 2650 on alpha hardware. Please, let me know any suggestions on how to overcome this problem.

Thanks!

[Ivan Ferreira]

You should start by using "sysman NFS" to ensure that your NFS server configuration is correct.

Also, both system should resolve correctly each other system, for example, if you use /etc/hosts for name resolution, ensure that the entries for both servers are the same on both systems.

[Joaquin Martinez_1]

Ivan, thanks. The client/server daemons weren't running on the machine, so I started them. But it is giving me the same problem from the other node if I try to mount a shared directory on this server.

What else do you think I should look for ?

By the way, I am using their qualified ip addresses when mounting the shared directory, not their names.

[Al Licause · Accepted solution]

Please check to see which switches mountd is running with on the server. If it is using the -i switch, then the server will be forced to backtranslate the incoming ip address of each client attempting to mount a directory.

If this is the case, then try telneting from the client to the server....login...any account will do.

Then run tty to find the psuedo device you are using followed by w | grep {psuedo_device}

Look at the third column. If you see an ip address then the server is not correctly backtranslating the address of the client.

This is most often the case with that error.
If this is not so, then post your exports file entries so we can see if you are using any qualifiers on the exported directory.

[Joaquin Martinez_1]

Al Licause, right on, I fixed the problem by adding the remote client's entry on /etc/hosts.

Thank you very much all!

[Joaquin Martinez_1]

Closed