The NFS configurator of Linuxconf is fairly crud at this time. You must specify option enclosed in parentheses like this:
machinea(rw,link_relative)
machineb(ro)
Here are a list of the main options. Refer to the man page (man exports) for more details (and more options).
Map requests from uid 0 on the client to uid NOBODY_UID (a compile-time option) on the server.
Don't map requests from uid 0.
Mount file hierarchy read-only.
Mount file hierarchy read-write.
Convert absolute symbolic links (where the link contents start with a slash) into relative links by prepending the necessary number of ../'s to get from the directory containing the link to the root on the server. This has sub- tle, perhaps questionable, semantics when the file hierarchy is not mounted at its root.
Leave all symbolic link as they are (the normal behavior for Sun-supplied NFS servers).