If I check an NFS share on a machine and ls I get the folders.

If I got to the NFS host and add a new directory to /etc/exports for the client and do exportfs -a what do I run on the client to refresh the directories?

Example (pseudoish):

nfsNode01:

echo "/share clientNode01 >> /etc/exports";
exportfs -a;

clientNode01:

cd /share;
ls;

nfsNode01:

echo "/share/folder clientNode01 >> /etc/exports";  
exportfs -a;  

clientNode01:

ls;  

Results as still the same as above.

If I reboot the /share/folder shares are there. I know there has to be a way to refresh that info from NFS. I'm sure if I let the connection wait long enough the next time I mounted /dsl would do it. Can I just umount/mount or is there a better way?