How to check nfs version
 

I am just installed RHEL4 ws. I am trying to know which version of nfs installed on it. How can I check the version of NFS ?

There are several ways;

Typing "man nfs" might tell you which version you're operating on, if not, it should tell you how to find out which version you are running.

Also, you could open up the graphical package manager. I don't know know if RHEL uses the same graphical front-end to rpm like Fedora does - yum - but if there's an Add/Remove Programs item in the main menu, then run it, and look around for the nfs packages, and a version number should be right next to it (if not in the package name).

Another option, which is kind of "theoretically, it makes sense", is reading the manpage for rpm and you might be able to find out which version an installed package is.

rpm -qa|grep -i nfs might help

Thanks for suggestions.....However, I am still not able to find out the correct version number :(

1. man nfs does not give any information on how to check the version of nfs.

2. Yum is not installed...and system-config-packages (Redhat Package Manager) does not list nfs version anywhere

3. rpm -qa | grep -i nfs shows only one output and it is

nfs-utils-1.0.6

4. rpm -qi nfs-utils however, give some intersting output.

Does that mean nfs is installed in kernel ????

5. one more thing....."The another I got from google is to use rpcinfo".

rpcinfo -u localhost nfs shows..


Any ideas !!

I'm pretty sure "1.0.6" denotes the NFS version you have.

And yes, NFS is in the kernel, as it is a file system (that was developed before the time of userspace file systems - ie. FUSE).

version check
 

i did yum --version nfs, worked!

Try nfsstat
 

nfsstat should provide output like the following:

In this example, the server is only running nfs v3 protocol. If you're running v2 and v4, you should have separate sections with stats for data served by version.

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yep, I would vote for this. When using nfsstat -s(query server) or nfsstat -c(query client), you can determine which nfs version it's using(the currently used one is with most rpc calls)