delete rule before adding again

Author: DaanHoogland

services/secondary-storage/server/src/main/java/org/apache/cloudstack/storage/resource/NfsSecondaryStorageResource.java

@@ -2290,6 +2290,13 @@ public synchronized String allowOutgoingOnPrivate(String destCidr) {
         Script command = new Script("/bin/bash", s_logger);
         String intf = "eth1";
         command.add("-c");
+        command.add("iptables -D OUTPUT -o " + intf + " -d " + destCidr + " -p tcp -m state --state NEW -m tcp  -j ACCEPT");
+
+        /* ignore the String result =*/ command.execute();
+
+        command = new Script("/bin/bash", s_logger);
+        String intf = "eth1";
+        command.add("-c");
         command.add("iptables -I OUTPUT -o " + intf + " -d " + destCidr + " -p tcp -m state --state NEW -m tcp  -j ACCEPT");
 
         String result = command.execute();
@@ -2834,6 +2841,10 @@ private void startAdditionalServices() {
         }
         command = new Script("/bin/bash", s_logger);
         command.add("-c");
+        command.add("iptables -D INPUT -i eth1 -p tcp -m state --state NEW -m tcp --dport 3922 -j ACCEPT");
+        /* ignore result = */ command.execute();
+        command = new Script("/bin/bash", s_logger);
+        command.add("-c");
         command.add("iptables -I INPUT -i eth1 -p tcp -m state --state NEW -m tcp --dport 3922 -j ACCEPT");
         result = command.execute();
         if (result != null) {