diff --git a/api/src/org/apache/cloudstack/api/command/admin/account/LockAccountCmd.java b/api/src/org/apache/cloudstack/api/command/admin/account/LockAccountCmd.java
index 3c185e41bdd..05b370abda5 100644
--- a/api/src/org/apache/cloudstack/api/command/admin/account/LockAccountCmd.java
+++ b/api/src/org/apache/cloudstack/api/command/admin/account/LockAccountCmd.java
@@ -16,7 +16,7 @@
 // under the License.
 package org.apache.cloudstack.api.command.admin.account;
 
-import org.apache.log4j.Logger;
+import java.util.logging.Logger;
 
 import org.apache.cloudstack.api.APICommand;
 import org.apache.cloudstack.api.ApiConstants;
@@ -26,9 +26,14 @@ import org.apache.cloudstack.api.response.AccountResponse;
 import org.apache.cloudstack.api.response.DomainResponse;
 
 import com.cloud.user.Account;
+import com.cloud.utils.exception.CloudRuntimeException;
 
-@APICommand(name = "lockAccount", description = "Locks an account", responseObject = AccountResponse.class, entityType = {Account.class},
-        requestHasSensitiveInfo = false, responseHasSensitiveInfo = true)
+@APICommand(name = "lockAccount",
+            description = "This deprecated function used to locks an account. Look for the API DisableAccount instead",
+            responseObject = AccountResponse.class,
+            entityType = {Account.class},
+            requestHasSensitiveInfo = false,
+            responseHasSensitiveInfo = true)
 public class LockAccountCmd extends BaseCmd {
     public static final Logger s_logger = Logger.getLogger(LockAccountCmd.class.getName());
 
@@ -71,7 +76,7 @@ public class LockAccountCmd extends BaseCmd {
 
     @Override
     public long getEntityOwnerId() {
-        Account account = _accountService.getActiveAccountByName(getAccountName(), getDomainId());
+        final Account account = _accountService.getActiveAccountByName(getAccountName(), getDomainId());
         if (account != null) {
             return account.getAccountId();
         }
@@ -81,14 +86,6 @@ public class LockAccountCmd extends BaseCmd {
 
     @Override
     public void execute() {
-//        Account result = null;
-        //result = _accountService.lockAccount(this);
-//        if (result != null){
-//            AccountResponse response = _responseGenerator.createAccountResponse(result);
-//            response.setResponseName(getCommandName());
-//            this.setResponseObject(response);
-//        } else {
-//            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to lock account");
-//        }
+        throw new CloudRuntimeException("LockAccount does not lock accounts. Its implementation is disabled. Use DisableAccount instead");
     }
 }
diff --git a/systemvm/patches/debian/config/etc/init.d/cloud-early-config b/systemvm/patches/debian/config/etc/init.d/cloud-early-config
index 07963d0c6b5..5d456616657 100755
--- a/systemvm/patches/debian/config/etc/init.d/cloud-early-config
+++ b/systemvm/patches/debian/config/etc/init.d/cloud-early-config
@@ -1166,6 +1166,7 @@ setup_storage_network() {
 }
 
 setup_system_rfc1918_internal() {
+  public_ip=`getPublicIp`
   echo "$public_ip" | grep -E "^((127\.)|(10\.)|(172\.1[6-9]\.)|(172\.2[0-9]\.)|(172\.3[0-1]\.)|(192\.168\.))"
   if [ "$?" == "0" ]; then
      log_it "Not setting up route of RFC1918 space to $LOCAL_GW befause $public_ip is RFC1918."
@@ -1180,6 +1181,12 @@ setup_system_rfc1918_internal() {
   fi
 }
 
+getPublicIp() {
+  public_ip=$ETH2_IP
+  [ "$ETH2_IP" == "0.0.0.0" ] && public_ip=$ETH1_IP
+  echo $public_ip
+}
+
 setup_secstorage() {
   log_it "Setting up secondary storage system vm"
   sysctl vm.min_free_kbytes=8192
@@ -1188,8 +1195,7 @@ setup_secstorage() {
   setup_storage_network
   setup_system_rfc1918_internal
   sed -i  /gateway/d /etc/hosts
-  public_ip=$ETH2_IP
-  [ "$ETH2_IP" == "0.0.0.0" ] && public_ip=$ETH1_IP
+  public_ip=`getPublicIp`
   echo "$public_ip $NAME" >> /etc/hosts
 
   cp /etc/iptables/iptables-secstorage /etc/iptables/rules.v4
@@ -1246,8 +1252,7 @@ setup_console_proxy() {
   local hyp=$1
   setup_common eth0 eth1 eth2
   setup_system_rfc1918_internal
-  public_ip=$ETH2_IP
-  [ "$ETH2_IP" == "0.0.0.0" ] && public_ip=$ETH1_IP
+  public_ip=`getPublicIp`
   sed -i  /gateway/d /etc/hosts
   echo "$public_ip $NAME" >> /etc/hosts
   cp /etc/iptables/iptables-consoleproxy /etc/iptables/rules.v4
diff --git a/systemvm/patches/debian/config/opt/cloud/bin/configure.py b/systemvm/patches/debian/config/opt/cloud/bin/configure.py
index 8f469d394f6..8d00bdf1414 100755
--- a/systemvm/patches/debian/config/opt/cloud/bin/configure.py
+++ b/systemvm/patches/debian/config/opt/cloud/bin/configure.py
@@ -288,7 +288,7 @@ class CsAcl(CsDataBag):
             if item == "id":
                 continue
             if self.config.is_vpc():
-                dev_obj = self.AclDevice(self.dbag[item], self.config).create()
+                self.AclDevice(self.dbag[item], self.config).create()
             else:
                 self.AclIP(self.dbag[item], self.config).create()
 
@@ -901,79 +901,123 @@ class CsForwardingRules(CsDataBag):
 
 
 def main(argv):
+    # The file we are currently processing, if it is "cmd_line.json" everything will be processed.
+    process_file = argv[1]
+
+    # process_file can be None, if so assume cmd_line.json
+    if process_file is None:
+        process_file = "cmd_line.json"
+
+    # Track if changes need to be committed to NetFilter
+    iptables_change = False
+
+    # The "GLOBAL" Configuration object
     config = CsConfig()
+
     logging.basicConfig(filename=config.get_logger(),
                         level=config.get_level(),
                         format=config.get_format())
+
+    # Load stored ip adresses from disk to CsConfig()
     config.set_address()
 
     logging.debug("Configuring ip addresses")
-    # IP configuration
     config.address().compare()
     config.address().process()
 
-    logging.debug("Configuring vmpassword")
-    password = CsPassword("vmpassword", config)
-    password.process()
+    if process_file in ["cmd_line.json", "guest_network.json"]:
+        logging.debug("Configuring Guest Network")
+        iptables_change = True
 
-    logging.debug("Configuring vmdata")
-    metadata = CsVmMetadata('vmdata', config)
-    metadata.process()
+    if process_file in ["cmd_line.json", "vm_password.json"]:
+        logging.debug("Configuring vmpassword")
+        password = CsPassword("vmpassword", config)
+        password.process()
 
-    logging.debug("Configuring networkacl")
+    if process_file in ["cmd_line.json", "vm_metadata.json"]:
+        logging.debug("Configuring vmdata")
+        metadata = CsVmMetadata('vmdata', config)
+        metadata.process()
+
+    # Always run both CsAcl().process() methods
+    # They fill the base rules in config.fw[]
     acls = CsAcl('networkacl', config)
     acls.process()
 
-    logging.debug("Configuring firewall rules")
     acls = CsAcl('firewallrules', config)
     acls.process()
 
-    logging.debug("Configuring PF rules")
     fwd = CsForwardingRules("forwardingrules", config)
     fwd.process()
 
-    logging.debug("Configuring s2s vpn")
     vpns = CsSite2SiteVpn("site2sitevpn", config)
     vpns.process()
 
-    logging.debug("Configuring remote access vpn")
-    #remote access vpn
     rvpn = CsRemoteAccessVpn("remoteaccessvpn", config)
     rvpn.process()
 
-    logging.debug("Configuring vpn users list")
-    #remote access vpn users
-    vpnuser = CsVpnUser("vpnuserlist", config)
-    vpnuser.process()
-
-    logging.debug("Configuring dhcp entry")
-    dhcp = CsDhcp("dhcpentry", config)
-    dhcp.process()
-
-    logging.debug("Configuring load balancer")
     lb = CsLoadBalancer("loadbalancer", config)
     lb.process()
 
-    logging.debug("Configuring monitor service")
-    mon = CsMonitor("monitorservice", config)
-    mon.process()
+    if process_file in ["cmd_line.json", "network_acl.json"]:
+        logging.debug("Configuring networkacl")
+        iptables_change = True
 
-    logging.debug("Configuring iptables rules")
-    nf = CsNetfilters()
-    nf.compare(config.get_fw())
+    if process_file in ["cmd_line.json", "firewall_rules.json"]:
+        logging.debug("Configuring firewall rules")
+        iptables_change = True
+
+    if process_file in ["cmd_line.json", "forwarding_rules.json", "staticnat_rules.json"]:
+        logging.debug("Configuring PF rules")
+        iptables_change = True
+
+    if process_file in ["cmd_line.json", "site_2_site_vpn.json"]:
+        logging.debug("Configuring s2s vpn")
+        iptables_change = True
+
+    if process_file in ["cmd_line.json", "remote_access_vpn.json"]:
+        logging.debug("Configuring remote access vpn")
+        iptables_change = True
+
+    if process_file in ["cmd_line.json", "vpn_user_list.json"]:
+        logging.debug("Configuring vpn users list")
+        vpnuser = CsVpnUser("vpnuserlist", config)
+        vpnuser.process()
+
+    if process_file in ["cmd_line.json", "vm_dhcp_entry.json", "dhcp.json"]:
+        logging.debug("Configuring dhcp entry")
+        dhcp = CsDhcp("dhcpentry", config)
+        dhcp.process()
+
+    if process_file in ["cmd_line.json", "load_balancer.json"]:
+        logging.debug("Configuring load balancer")
+        iptables_change = True
+
+    if process_file in ["cmd_line.json", "monitor_service.json"]:
+        logging.debug("Configuring monitor service")
+        mon = CsMonitor("monitorservice", config)
+        mon.process()
+
+    # If iptable rules have changed, apply them.
+    if iptables_change:
+        logging.debug("Configuring iptables rules")
+        nf = CsNetfilters()
+        nf.compare(config.get_fw())
 
     red = CsRedundant(config)
     red.set()
 
-    logging.debug("Configuring static routes")
-    static_routes = CsStaticRoutes("staticroutes", config)
-    static_routes.process()
+    if process_file in ["cmd_line.json", "static_routes.json"]:
+        logging.debug("Configuring static routes")
+        static_routes = CsStaticRoutes("staticroutes", config)
+        static_routes.process()
 
-    logging.debug("Configuring iptables rules done ...saving rules")
+    if iptables_change:
+        logging.debug("Configuring iptables rules done ...saving rules")
 
-    # Save iptables configuration - will be loaded on reboot by the iptables-restore that is configured on /etc/rc.local
-    CsHelper.save_iptables("iptables-save", "/etc/iptables/router_rules.v4")
-    CsHelper.save_iptables("ip6tables-save", "/etc/iptables/router_rules.v6")
+        # Save iptables configuration - will be loaded on reboot by the iptables-restore that is configured on /etc/rc.local
+        CsHelper.save_iptables("iptables-save", "/etc/iptables/router_rules.v4")
+        CsHelper.save_iptables("ip6tables-save", "/etc/iptables/router_rules.v6")
 
 if __name__ == "__main__":
     main(sys.argv)
diff --git a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsDhcp.py b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsDhcp.py
index 4c99f2e07dd..023b180cf27 100755
--- a/systemvm/patches/debian/config/opt/cloud/bin/cs/CsDhcp.py
+++ b/systemvm/patches/debian/config/opt/cloud/bin/cs/CsDhcp.py
@@ -50,12 +50,12 @@ class CsDhcp(CsDataBag):
 
         self.configure_server()
 
-        # We restart DNSMASQ every time the configure.py is called in order to avoid lease problems.
-        CsHelper.service("dnsmasq", "restart")
-
         self.conf.commit()
         self.cloud.commit()
 
+        # We restart DNSMASQ every time the configure.py is called in order to avoid lease problems.
+        CsHelper.service("dnsmasq", "restart")
+
     def configure_server(self):
         # self.conf.addeq("dhcp-hostsfile=%s" % DHCP_HOSTS)
         for i in self.devinfo:
@@ -96,29 +96,8 @@ class CsDhcp(CsDataBag):
             self.conf.search(sline, line)
 
     def delete_leases(self):
-        changed = []
-        leases = []
         try:
-            for line in open(LEASES):
-                bits = line.strip().split(' ')
-                to = {"device": bits[0],
-                      "mac": bits[1],
-                      "ip": bits[2],
-                      "host": bits[3:],
-                      "del": False
-                      }
-                changed.append(to)
-
-                for v in changed:
-                    if v['mac'] == to['mac'] or v['ip'] == to['ip'] or v['host'] == to['host']:
-                        to['del'] = True
-                leases.append(to)
-
-            for o in leases:
-                if o['del']:
-                    cmd = "dhcp_release eth%s %s %s" % (o['device'], o['ip'], o['mac'])
-                    logging.info(cmd)
-                    CsHelper.execute(cmd)
+            open(LEASES, 'w').close()
         except IOError:
             return
 
diff --git a/systemvm/patches/debian/config/opt/cloud/bin/update_config.py b/systemvm/patches/debian/config/opt/cloud/bin/update_config.py
index 35a5cde363c..dddd0c8e3c0 100755
--- a/systemvm/patches/debian/config/opt/cloud/bin/update_config.py
+++ b/systemvm/patches/debian/config/opt/cloud/bin/update_config.py
@@ -41,7 +41,7 @@ currentGuestNetConfig = "/etc/cloudstack/guestnetwork.json"
 
 def finish_config():
     # Converge
-    returncode = configure.main([])
+    returncode = configure.main(sys.argv)
     sys.exit(returncode)
 
 
diff --git a/ui/scripts/network.js b/ui/scripts/network.js
index 9f327833766..d96dbbc5240 100755
--- a/ui/scripts/network.js
+++ b/ui/scripts/network.js
@@ -3620,7 +3620,37 @@
                                                     requireValidation: true,
                                                     buttonLabel: 'Configure',
                                                     action: cloudStack.uiCustom.healthCheck()
-
+                                                },
+                                                isHidden: function(args) {
+                                                    if (!('vpc' in args.context)) {  //From Guest Network section
+                                                        var lbProviderIsNetscaler = false;
+                                                        $.ajax({
+                                                            url: createURL('listNetworkOfferings'),
+                                                            data: {
+                                                                id: args.context.networks[0].networkofferingid
+                                                            },
+                                                            async: false,
+                                                            success: function(json) {
+                                                                var networkOffering = json.listnetworkofferingsresponse.networkoffering[0];
+                                                                var services = networkOffering.service;
+                                                                lbProviderIsNetscaler = checkIfNetScalerProviderIsEnabled(services);
+                                                            }
+                                                        });
+                                                        if (lbProviderIsNetscaler == true) { //Health-Check is only supported on Netscaler (but not on any other provider)
+                                                            return false; //Show Health-Check button
+                                                        } else {
+                                                            return 2; //Hide Health-Check button (Both Header and Form)
+                                                        }
+                                                    } else { //From VPC section
+                                                        var lbProviderIsNetscaler;
+                                                        var services = args.context.vpc[0].service;
+                                                        lbProviderIsNetscaler = checkIfNetScalerProviderIsEnabled(services);
+                                                        if (lbProviderIsNetscaler == true) { //Health-Check is only supported on Netscaler (but not on any other provider)
+                                                            return false; //Show Health-Check button
+                                                        } else {
+                                                            return 2; //Hide Health-Check button (both Header and Form)
+                                                        }
+                                                    }
                                                 }
                                             },
 
@@ -6545,6 +6575,26 @@
         }
     };
 
+    function checkIfNetScalerProviderIsEnabled(services) {
+        if (services != null) {
+            for (var i = 0; i < services.length; i++) {
+                if (services[i].name == 'Lb') {
+                    var providers = services[i].provider;
+                    if (providers != null) {
+                        for (var k = 0; k < providers.length; k++) {
+                            if (providers[k].name == 'Netscaler') {
+                                return true;
+                            }
+                        }
+                    }
+                    return false;
+                }
+            }
+        }
+
+        return false;
+    }
+
     function getExtaPropertiesForIpObj(ipObj, args) {
         if (!('vpc' in args.context)) { //***** Guest Network section > Guest Network page > IP Address page *****
             var services = args.context.networks[0].service;