Hello, The following patches fix the '-p port' command line argument to rpc.nfsd as well as adds following flags that control the NFS versions and transports that rpc.nfsd will use. -N or --no-nfs-version vers This option can be used to request that rpc.nfsd does not offer certain versions of NFS. The current version of rpc.nfsd can support both NFS version 2,3 and the newer version 4. -T or --no-tcp Disable rpc.nfsd from accepting TCP connections from clients. -U or --no-udp Disable rpc.nfsd from accepting UDP connections from clients. The first patch is for nfs-utils and the second one is for the kernel. Although I'm posting these patch together, they are not dependent on each other. Meaning, a patched kernel will work with an unpatched nfs-utils and visa-versa.. Is this something the upstream kernels would be interested in? steved.