can't mount NFS share through firewall

[SoftDux-Rudi]

Hi.

I hope someone can help me with this one. I'm having trouble mounting an NFS shared, exported from FreeNAS onto a CentOS linux server.

The error I keep getting is:

root@pluto:[~]$ mount -t nfs 192.168.1.99:/mnt/Tank/backups/softdux/pluto /bck
mount: mount to NFS server '192.168.1.99' failed: RPC Error: Unable to send.
root@pluto:[~]$ showmount -e 192.168.1.99
rpc mount export: RPC: Unable to send; errno = Operation not permitted

I have added ports 111 & 2049, both UDP & TCP in the server's firewall's outgoing connection but that didn't seem to help.


As soon as I disable the firewall on the Linux server I can mount the NFS share, but otherwise not.

Does anyone know why, even when I allow the NFS ports through, it doesn't allow me to map the share?