I am trying to mount an NFS share on my three networked computers. When I try to mount the NFS share, it says that there is an RPC timeout. What is this and how do I fix this? Thanks a lot!!!

RPC = Remote Procedure Call

What distro are you trying to setup NFS on ?? Make sure the NFS server or servers and each client has all the correct daemons running. Check out the NFS Howto at www.tldp.org for lots of good info and also try doing a search here, as I do believe this has asked before.

Yeah i asked this before, but i got a RPC timeout after mounting and using NFS share at random times. The only way to bring NFS back up without resetting both computers was to use ifconfig to put down and then back ut Eth0 interfaces. I never fixed the problem unfortunately.
-NSKL

I think you can give timeout and no. of retansmissions on command line. See what you get in /var/log/messages of the server. I always found this useful while working with nfs. man 5 nfs will be helful. When ever I used to get long delays with nfs, I find some daemon is dead and just giving a -o nolock could fix it.
--Sarin

might be your firewall. are you using any ipchains/iptables ruleset?

Yup i am, IPtables, but i tried disabling it and the timeout occurs anyway.
When sharing files everything is fine, i can copy to and from NFS partition and modify files on it, the timeout happens only when i play .mp3s from the NFS partition on the remote machine. XMMS stops playing at random times and on both machines (client and server) /var/log/messages spits out the RPC timeout on eth0 blah, blah. Then i use ifconfig to put down and back up eth0 interfaces and everything continues working. So this timeout only occurs when the client is continuosly using the NFS partition, like in the example i gave when i'm playing .mp3s from NFS.
It might be the Ethernet cord... But im too lazy to go buy another one, and then i can play mp3s on the server so its not a big issue at all since NFS otherwise works well...
Was that confusing? Sorry but when i start speaking its often hard to shut me up before i finish what i was to say sorry again if this too long..

-NSKL