--- /etc/ctdb/functions.orig	2019-03-21 18:40:32.000000000 +0100
+++ /etc/ctdb/functions	2019-03-26 16:12:56.974453412 +0100
@@ -505,7 +505,7 @@
 {
     _ip="$1"
 
-    ss -tn state established "src [$_ip]" | awk 'NR > 1 {print $3, $4}'
+    ss -tn state established "src $_ip" | awk 'NR > 1 {print $3, $4}'
 }
 
 ########################################################
@@ -977,8 +977,8 @@
 	# Parentheses are needed around the filters for precedence but
 	# the parentheses can't be empty!
 	ss -tn state established \
-	   "${_ip_filter:+( ${_ip_filter} )}" \
-	   "${_port_filter:+( ${_port_filter} )}" |
+	   "${_port_filter:+( ${_port_filter} )}" \
+	   "${_ip_filter}" |
 	awk 'NR > 1 {print $4, $3}' |
 	sort >"$_my_connections"
 
--- /etc/ctdb/nfs-linux-kernel-callout.orig	2019-01-15 11:07:00.000000000 +0100
+++ /etc/ctdb/nfs-linux-kernel-callout	2019-03-26 16:00:49.030174721 +0100
@@ -12,20 +12,33 @@
 # hook for testing.
 nfs_exports_file="${CTDB_NFS_EXPORTS_FILE:-/var/lib/nfs/etab}"
 
-# Red Hat
-nfs_service="nfs"
-nfslock_service="nfslock"
-nfs_config="/etc/sysconfig/nfs"
-
-# SUSE
-#nfs_service="nfsserver"
-#nfslock_service=""
-#nfs_config="/etc/sysconfig/nfs"
-
-# Debian
-#nfs_service="nfs-kernel-server"
-#nfslock_service=""
-#nfs_config="/etc/default/nfs-kernel-server"
+[ -n "$CTDB_BASE" ] || \
+    CTDB_BASE=$(d=$(dirname "$0") ; cd -P "$d" ; echo "$PWD")
+
+. "${CTDB_BASE}/functions"
+
+detect_init_style
+
+case $CTDB_INIT_STYLE in
+        suse)
+		# SUSE
+		nfs_service="nfsserver"
+		nfslock_service=""
+		nfs_config="/etc/sysconfig/nfs"
+                ;;
+        debian)
+		# Debian
+		nfs_service="nfs-kernel-server"
+		nfslock_service=""
+		nfs_config="/etc/default/nfs-kernel-server"
+                ;;
+        *)
+		# Red Hat
+		nfs_service="nfs"
+		nfslock_service="nfslock"
+		nfs_config="/etc/sysconfig/nfs"
+                ;;
+esac
 
 # Override for unit testing
 if [ -z "$PROCFS_PATH" ] ; then
@@ -137,8 +150,8 @@
 {
     basic_stop "nfs" || true
     basic_start "nfs"
-    _f="${PROCFS_PATH}/sys/net/ipv4/tcp_tw_recycle"
-    if [ "$_f" ] ; then
+    _f="${PROCFS_PATH}/sys/net/ipv4/tcp_tw_reuse"
+    if [ -w "$_f" ] ; then
 	echo 1 >"$_f"
     fi
 }
--- /etc/ctdb/statd-callout.orig	2019-01-15 11:07:00.000000000 +0100
+++ /etc/ctdb/statd-callout	2019-03-26 16:33:08.842677303 +0100
@@ -20,7 +20,22 @@
     exit 1
 }
 
-load_system_config "nfs"
+detect_init_style
+
+case $CTDB_INIT_STYLE in
+        suse)
+                # SUSE
+		load_system_config "nfs"
+                ;;
+        debian)
+                # Debian
+		load_system_config "nfs-kernel-server"
+                ;;
+        *)
+                # Red Hat
+		load_system_config "nfs"
+                ;;
+esac
 
 [ -n "$NFS_HOSTNAME" ] || \
     die "NFS_HOSTNAME is not configured. statd-callout failed"
--- /usr/share/ctdb/events/legacy/60.nfs.script.orig	2019-03-26 16:46:27.666965852 +0100
+++ /usr/share/ctdb/events/legacy/60.nfs.script	2019-03-26 16:46:55.927071294 +0100
@@ -8,7 +8,22 @@
 
 service_name="nfs"
 
-load_system_config "nfs"
+detect_init_style
+
+case $CTDB_INIT_STYLE in
+        suse)
+                # SUSE
+                load_system_config "nfs"
+                ;;
+        debian)
+                # Debian
+                load_system_config "nfs-kernel-server"
+                ;;
+        *)
+                # Red Hat
+                load_system_config "nfs"
+                ;;
+esac
 
 load_script_options