Hello,

I am in dire need to solve this problem if there is anyone that can give a fast reply, I would greatly appreciate it. Thank you!

I have an NFS Cluster setup, but I cannot get the FS to share from another client or server. Please help!

I keep encountering a problem when i run the following command below:

showmount -e 192.xxx.xxx.xxx

clnt_create: RPC: Port mapper failure - Unable to send: errno 13 (Permission denied)

below is the following output.
# rpcinfo -p
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100005 1 udp 42534 mountd
100005 1 tcp 43336 mountd
100005 2 udp 50724 mountd
100005 2 tcp 48353 mountd
100005 3 udp 43878 mountd
100005 3 tcp 59331 mountd
100024 1 udp 55366 status
100024 1 tcp 58232 status
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100227 2 tcp 2049 nfs_acl
100227 3 tcp 2049 nfs_acl
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100227 2 udp 2049 nfs_acl
100227 3 udp 2049 nfs_acl
100021 1 udp 53564 nlockmgr
100021 3 udp 53564 nlockmgr
100021 4 udp 53564 nlockmgr
100021 1 tcp 39895 nlockmgr
100021 3 tcp 39895 nlockmgr
100021 4 tcp 39895 nlockmgr

Have you made sure that the firewall on the server is allowing RPC traffic through on the appropriatye ports?

Usually there is some kind of firewall blocking port 111. You might check for one on the server. If you are using NFSv4 it isn't necessary, but you can't check the status remotely.

One thing that would help is knowing which machine which command was done. You can also do rpcinfo -p <server> on a client, to make sure you can access the portmap on the server from a client.