diff --git a/debian/smb.conf b/debian/smb.conf
index ae45d3f757f1..c9092e294b26 100644
--- a/debian/smb.conf
+++ b/debian/smb.conf
@@ -32,6 +32,5 @@
         kernel oplocks = no
         posix locking = no
         durable handles = yes
-        aio read size = 4096
-        aio write size = 4096
-
+        aio read size = 1
+        aio write size = 1
\ No newline at end of file
diff --git a/debian/svt-samba-init b/debian/svt-samba-init
index 9a3320436c74..8f11f9407754 100755
--- a/debian/svt-samba-init
+++ b/debian/svt-samba-init
@@ -11,6 +11,7 @@
 # ask_retry "<cmd>"
 # NULL/Empty command would cause just the prompt. Skip/Abort out of the prompt as needed.
 #
+env APPSETUP="/var/tmp/build/bin/appsetup"
 ask_retry()
 {
     cmd="$1"
@@ -285,20 +286,10 @@ echo "CMD $CMD"
 
 deploy_samba()
 {
+    . "$APPSETUP"
 
     get_samba_specific_defines
 
-    if [ `iptables -L | head -4 | grep -c "anywhere *$"` -lt 1 ]
-    then
-       echo IPTables is not open enough, injecting rule...
-       iptables -I INPUT -j ACCEPT
-       echo IPTables is updated to accept all incoming traffic
-    else
-       echo IPTables looks good
-    fi
-
-    ${SRCPATH}/fw.stop
-
     setup_domain_networking
 
     echo Starting to update Samba on the DVM and integrate with Windows domain...
@@ -356,6 +347,9 @@ deploy_samba()
 
     net rpc rights grant '$GROUP_NAME\\Domain Admins' SeDiskOperatorPrivilege -U$ADMIN_USER%$ADMIN_PASSWD
 
+    # Delete the upstart override file for samba when running on HyperV
+    [ `grep -ic provider.hyperv $SVTCONF` -eq 1 ] && (rm /etc/init/svt-samba-server.override)
+
     echo "SVT Samba One-time Initialization done."
 }
 
@@ -431,18 +425,7 @@ prep_predeploy_and_exit()
 	wget -N http://10.0.0.85/captures/SierraNevada/resetTia
 	wget -N http://10.0.0.85/captures/SierraNevada/winexe
 	chmod +x winexe
-	cat > fw.stop << EOT
-#!/bin/sh
-echo "Stopping firewall and allowing everyone..."
-iptables -F
-iptables -X
-iptables -t mangle -F
-iptables -t mangle -X
-iptables -P INPUT ACCEPT
-iptables -P FORWARD ACCEPT
-iptables -P OUTPUT ACCEPT
-EOT
-        cat > DEFS << EOT
+	cat > DEFS << EOT
 ### Fill these out to avoid fat fingering! Examples are provided as comments (#) below.
 ### This file is sourced into bash at the beginning of the install script.
 
@@ -482,8 +465,6 @@ EXIT_ON_ERROR=1
 EOT
     fi
 
-    chmod +x fw.stop
-
     if [ ! -d ${SAMBAPDIR}/samba ]; then
 	mv /var/lib/samba ${SAMBAPDIR}/
 	ln -s ${SAMBAPDIR}/samba /var/lib/