nfs version

dpkg -s nfs-kernel-server
Package: nfs-kernel-server
Status: install ok installed
Priority: optional
Section: net
Installed-Size: 388
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: i386
Source: nfs-utils
Version: 1:1.2.0-4ubuntu4.2
Replaces: knfs, nfs-server
Provides: knfs, nfs-server
Depends: nfs-common (>= 1:1.0.8-1), ucf, lsb-base (>= 1.3-9ubuntu3), libblkid1 (>= 2.15~rc2-1ubuntu1), libc6 (>= 2.4), libcomerr2 (>= 1.01), libgssapi-krb5-2 (>= 1.6.dfsg.2), libgssglue1, libk5crypto3 (>= 1.6.dfsg.2), libkrb5-3 (>= 1.6.dfsg.2), libnfsidmap2, librpcsecgss3, libwrap0 (>= 7.6-4~)
Conflicts: knfs, nfs-server
Conffiles:
 /etc/init.d/nfs-kernel-server 68d22ac7f9e2d0c75e7a8fc143fa3a0a
Description: support for NFS kernel server
 The NFS kernel server is currently the recommended NFS server for use
 with Linux, featuring features such as NFSv3 and NFSv4, Kerberos
 support via GSS, and much more. It is also significantly faster and
 usually more reliable than the user-space NFS servers (from the
 unfs3 and nfs-user-server packages). However, it is more difficult to
 debug than the user-space servers, and has a slightly different
 feature set.
 .
 This package contains the user-space support needed to use the
 NFS kernel server. Most administrators wishing to set up an NFS server
 would want to install this package.
 .
 Upstream: SourceForge project "nfs", CVS module nfs-utils.
Homepage: http://nfs.sourceforge.net/
Original-Maintainer: Anibal Monsalve Salazar <anibal@debian.org>