dear All
me using redhat on server machine and open suse on client machine.i have installed nfs server and and it is running properly but when i want to mount shares from my client machine it gives the following error.
"mount.nfs: mount to NFS server '10.3.31.146:/share' failed: System Error: No route to host"
both systems ping each other and firewall is also disabled.
another problem is when i remotely access from my server machine to client machine it gives the following error
ssh:connect to host 10.3.31.147 port 22:connection refused

what can be the problem?

1. If you are pinging by name, 'No route' usually means there's no DNS to cvt the name to ip address.
2. Ensure that the firewall on both(!) systems is down.
3. Try pinging both by ip and by name in both directions; post results.
4. Try a traceroute in both directions.
5. cxn refused may mean ssh server (sshd) is running on the target
6. Specify exact distro names & versions eg

cat /etc/*release*

Make sure that the nfs and ssh services are running. Also check your hosts.allow and hosts.deny files.