diff --git a/nfs/manifests/init.pp b/nfs/manifests/init.pp
index fe99921..4517c18 100644
--- a/nfs/manifests/init.pp
+++ b/nfs/manifests/init.pp
@@ -1,4 +1,3 @@
-
 # Install NFS client.
 #
 class nfs::client {
@@ -13,12 +12,31 @@ class nfs::client {
         },
     }
 
-    if $::operatingsystem == "Fedora" and $::operatingsystemrelease >= 16 {
-        # https://bugzilla.redhat.com/show_bug.cgi?id=692008
-        service { "NetworkManager-wait-online":
-            ensure => stopped,
-            enable => true,
+    case $::operatingsystem {
+        "fedora": {
+            # https://bugzilla.redhat.com/show_bug.cgi?id=692008
+            service { "NetworkManager-wait-online":
+                ensure => stopped,
+                enable => true,
+            }
         }
+        "ubuntu": {
+            file { "/etc/modprobe.d/lockd.conf":
+                ensure  => present,
+                mode    => "0644",
+                owner   => "root",
+                group   => "root",
+                content => "options lockd nlm_tcpport=4001 nlm_udpport=4001\n",
+                before  => Package["nfs-utils"],
+            }
+            augeas { "set-nfs-common":
+                context => "/files/etc/default/nfs-common",
+                changes => "set STATDOPTS '\"--port 4000\"'",
+                notify  => Service["nfslock"],
+                require => Package["nfs-utils"],
+            }
+        }
+        default: { }
     }
 
     service { "nfslock":
@@ -26,8 +44,8 @@ class nfs::client {
         enable    => true,
         name      => $::operatingsystem ? {
             "centos" => $::operatingsystemrelease ? {
-                /^[1-6]/  => "nfslock",
-                default => "rpc-statd",
+                /^[1-6]/ => "nfslock",
+                default  => "rpc-statd",
             },
             "fedora" => $::operatingsystemrelease ? {
                 /^([1-9]|1[0-5])$/ => "nfslock",
@@ -45,30 +63,62 @@ class nfs::client {
 
 # Install and configure NFS server.
 #
-class nfs::server {
+# === Parameters
+#
+#   $servers:
+#       Number of nfs server processes to be started. Defaults to 8.
+#
+#   $versions:
+#       Array of NFS versions to enable. Defaults to [ "3" ].
+#
+class nfs::server(
+    $servers="8",
+    $versions=["3"],
+) {
+
+    $default_versions = [ "2", "3", "4" ]
+    $disable_versions = inline_template('<%= (@default_versions - @versions).map { |v| "-N %s" % v }.join(" ") %>')
 
     require nfs::client
 
     file { "/etc/exports":
-        ensure  => present,
-        source  => [
+        ensure => present,
+        source => [
           "puppet:///files/nfs/exports.${::homename}",
           "puppet:///modules/nfs/exports",
         ],
-        mode    => "0644",
-        owner   => "root",
-        group   => "root",
-        require => Package["nfs-utils"],
-        notify  => Exec["exportfs"],
+        mode   => "0644",
+        owner  => "root",
+        group  => "root",
+        notify => Exec["exportfs"],
     }
 
-    file { "/etc/sysconfig/nfs":
-        ensure  => present,
-        content => template("nfs/nfs.sysconfig.erb"),
-        mode    => "0644",
-        owner   => "root",
-        group   => "root",
-        notify  => Service["nfs"],
+    case $::operatingsystem {
+        "centos","redhat","fedora": {
+            file { "/etc/sysconfig/nfs":
+                ensure  => present,
+                mode    => "0644",
+                owner   => "root",
+                group   => "root",
+                content => template("nfs/nfs.sysconfig.erb"),
+                notify  => Service["nfs"],
+            }
+        }
+        "ubuntu": {
+            package { "nfs-kernel-server":
+                ensure => installed,
+            }
+            file { "/etc/default/nfs-kernel-server":
+                ensure  => present,
+                mode    => "0644",
+                owner   => "root",
+                group   => "root",
+                content => template("nfs/nfs-kernel-server.erb"),
+                require => Package["nfs-kernel-server"],
+                notify  => Service["nfs"],
+            }
+        }
+        default: { }
     }
 
     service { "nfs":
@@ -78,11 +128,11 @@ class nfs::server {
                 /^([1-9]|1[0-5])$/ => "nfs",
                 default            => "nfs-server",
             },
+            "ubuntu" => "nfs-kernel-server",
             default  => "nfs",
         },
         enable    => true,
         hasstatus => true,
-        require   => Service["nfslock"],
     }
 
     exec { "exportfs":
diff --git a/nfs/templates/nfs-kernel-server.erb b/nfs/templates/nfs-kernel-server.erb
new file mode 100644
index 0000000..9cdb420
--- /dev/null
+++ b/nfs/templates/nfs-kernel-server.erb
@@ -0,0 +1,22 @@
+# Number of servers to start up
+RPCNFSDCOUNT=<%= @servers %>
+
+# Runtime priority of server (see nice(1))
+RPCNFSDPRIORITY=0
+
+# Options for rpc.mountd.
+# If you have a port-based firewall, you might want to set up
+# a fixed port here using the --port option. For more information,
+# see rpc.mountd(8) or http://wiki.debian.org/SecuringNFS
+# To disable NFSv4 on the server, specify '--no-nfs-version 4' here
+RPCMOUNTDOPTS="--manage-gids --port 4002 <%= @disable_versions %>"
+
+# Do you want to start the svcgssd daemon? It is only required for Kerberos
+# exports. Valid alternatives are "yes" and "no"; the default is "no".
+NEED_SVCGSSD=""
+
+# Options for rpc.svcgssd.
+RPCSVCGSSDOPTS=""
+
+# Options for rpc.nfsd.
+RPCNFSDOPTS="<%= @disable_versions %>"
diff --git a/nfs/templates/nfs.sysconfig.erb b/nfs/templates/nfs.sysconfig.erb
index 462404a..c33b620 100644
--- a/nfs/templates/nfs.sysconfig.erb
+++ b/nfs/templates/nfs.sysconfig.erb
@@ -26,20 +26,20 @@ LOCKD_UDPPORT=4001
 # Turn off v2 and v3 protocol support
 #RPCNFSDARGS="-N 2 -N 3"
 # Turn off v4 protocol support
-RPCNFSDARGS="-N 4"
+RPCNFSDARGS="<%= @disable_versions %>"
 # Number of nfs server processes to be started.
 # The default is 8. 
-RPCNFSDCOUNT=64
+RPCNFSDCOUNT=<%= @servers %>
 # Stop the nfsd module from being pre-loaded 
 #NFSD_MODULE="noload"
 #
 #
 <% if @operatingsystem == 'Fedora' -%>
 # Optional arguments passed to rpc.mountd. See rpc.mountd(8)
-RPCMOUNTDOPTS="--no-nfs-version 4 -p 4002"
+RPCMOUNTDOPTS="<%= @disable_versions %> -p 4002"
 <% else -%>
 # Optional arguments passed to rpc.mountd. See rpc.mountd(8)
-RPCMOUNTDOPTS="--no-nfs-version 4"
+RPCMOUNTDOPTS="<%= @disable_versions %>"
 # Port rpc.mountd should listen on.
 MOUNTD_PORT=4002
 <% end -%>