README: mention that you need "insecure" to use libnfs as non-root user

diff --git a/README b/README
index c02b8ec2905bd08ab300b345153b094bf39fad67..3666a4734d18b5938c90d126d7f29aa171aa203e 100644 (file)
--- a/README
+++ b/README
@@ -22,3 +22,15 @@ This API provides access to posix vfs like functions such as
 stat(), read(), ...
 
 examples/nfsclient-sync.c provides examples on how to use this API
+
+
+
+ROOT vs NON-ROOT
+================
+When running as root, libnfs tries to allocate a system port for its connection
+to the nfs server. When running as non-root it will use a normal 
+ephemeral port.
+Many NFS servers default to a mode where they do not allow non-system
+ports from connecting.
+These servers require you use the "insecure" export option in /etc/exports
+in order to allow libnfs clients to be able to connect.