Tinkering with NFS over TCP through a firewall,
I ran across the following:
# mount_nfs -3TN server:/path /mnt
Generates the following traffic:
UDP exchanges with server port 111 (rpcbind)
TCP exchanges with server ports 1023 and 2049
That is, if your firewall allows UDP 111 through,
Hi,
# umount /mnt
Bad MNT RPC: RPC: Timed out
This behaviour is the same since we support NFS over
TCP. The problem is, that the state of the nfs_mount
isn't stored.
That means that umount cannot look at the mountflags
and decide what protocol it likes to use.
Of course we can change
