How to Check the NFS Server Remotely

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Note that support for both the UDP and the MOUNT protocols is not necessary if you are using an NFS Version 4 server.

Check that the NFS daemons have started on the NFS server.

$ rpcinfo -s server-name|egrep 'nfs|mountd'

For example:

$ rpcinfo -s bee|egrep 'nfs|mountd'
 100003  3,2    tcp,udp,tcp6,upd6                nfs     superuser
 100005  3,2,1  ticots,ticotsord,tcp,tcp6,ticlts,udp,upd6  mountd  superuser

If the daemons have not been started, restart the NFS service. For more information, see How to Restart NFS Service.

On the client, test the UDP NFS connections from the server.
```
$ /usr/bin/rpcinfo -u bee nfs
program 100003 Version 2 ready and waiting
program 100003 Version 3 ready and waiting
```
Note - NFS Version 4 does not support UDP.

If the server is running, the rpcinfo command lists program and version numbers that are associated with the UDP protocol. You can use the –t option with the rpcinfo command to check the TCP connection. If the rpcinfo command fails, check whether the NFS service is enabled on the server. For more information, see How to Verify the NFS Service on the Server.
Check that the server's mountd daemon is responding.
```
$ /usr/bin/rpcinfo -u bee mountd
program 100005 Version 1 ready and waiting
program 100005 Version 2 ready and waiting
program 100005 Version 3 ready and waiting
```
If the server is running, the rpcinfo command lists program and version numbers that are associated with the UDP protocol. Using the –t option tests the TCP connection. Check whether the nfsd and mountd daemon are running.
Check whether the local autofs service is used by the client by changing to a /net or /home mount point that works properly.
```
$ cd /net/eng
```
If this command fails, then as the root user on the client, restart the autofs service.
```
$ svcadm restart system/filesystem/autofs
```
Verify that the file system is shared as expected on the server.
```
$ /usr/sbin/showmount -e bee
/usr/src										eng
/export/share/man						(everyone)
```
Check the entry on the server and the local mount entry for errors. Also, check the namespace. In this example, if the first client is not in the eng netgroup, that client cannot mount the /usr/src file system.

Check all entries that include mounting information in all the local files. The list includes the /etc/vfstab file and all the /etc/auto_* files.