Anybody know how to make the nfs (nfs4) that’s shipped with Fedora 11 downward compatible with older systems? I’ve done a lot of research and can’t get a client mount to success with the firewall (system-config-firewall-tui) enabled. I will get a retrying loop and eventually failure:

Response to mount attempt:
mount: mount to NFS server 'hera2' failed: timed out (retrying).
mount: mount to NFS server 'hera2' failed: timed out (giving up).

The system-config-firewall-tui tool have an NFS4 listing under Trusted Services. I have it marked. That doesn’t help. I also forward a number of ports that have worked in the past with other Fedora versions.

I was looking for a way to use the firewall tool to grant full access to a particular host or IP, but can’t find that option. So I entered manually:

/sbin/iptables -A INPUT -s <host machine> -j ACCEPT

This also failed.

I tested /sbin/iptables –F and the normal mount worked. So I confirmed there is something about the firewall that is blocking the nfs mounting.

In my research I also found a reference to passing “-t nfs4” to the mount command:

mount -t nfs4 server:/mountpoint /mnt/dest

That fails, most likely because the older client doesn’t recognize the nfs4 type.

Thanks in advance for any input on this matter, of how to be able to mount the older nfs clients to the new servers.




-- L. James

--
L. D. James
ljames@apollo3.com
www.apollo3.com/~ljames

Hi, Guys. After a week of pondering and research I finally got the issue resolve. Since I found the question asked numerous times on the Internet, but never a resolution, I’ll post it here. It’s simple just as most issues are.

I used the “rpcinfo –p command” to see which services were running on which ports. Then I forwarded those ports via system-config-firewall-tui.

Hope others can benefit from this.

Thank you kindly anyone who spent any attention on it.

-- L. James

--
L. D. James
ljames@apollo3.com
www.apollo3.com/~ljames