Question : nfs basics

OK, I am a bit out of date here.

What I recall for nfs is I edit the /etc/exports file      /path   ip(rw)
Now how do I restart the service to get linux to take the changes in /etc/exports ?  
How can I "view" the export from the box that is advertising it ?
How can I "view" the export from a box that woud like to use the nfs share ( a client ) ?
Any other words of wisdom ?  

Answer : nfs basics

ok, seems that I get used to your network ...
on .103 you have the option "noauto" in your fstab (for the nfs mount), then you try to mount anything from your fstab using
   mount -a
which ignores all definitions which have "noauto"  (see man mount)
You need to mount your nfs share manually, somthing like
  mount /mnt/test