Wrap the other call to iptables in a loop, to deal with stupid

resource locking issue that iptables should deal with, not me!

tmcd/linux/mkvnode.pl

@@ -395,8 +395,15 @@ if (exists($vnconfig{'SSHDPORT'}) && $vnconfig{'SSHDPORT'} ne "") {
     my $sshdport = $vnconfig{'SSHDPORT'};
     my $ctrlip   = $vnconfig{'CTRLIP'};
 
+    # Retry a few times cause of iptables locking stupidity.
+    for (my $i = 0; $i < 5; $i++) {
 	system("$IPTABLES -v -t nat -A PREROUTING -p tcp -d $ext_ctrlip ".
-	   "--dport $sshdport -j DNAT --to-destination $ctrlip:$sshdport");
+	       "--dport $sshdport -j DNAT ".
+	       "--to-destination $ctrlip:$sshdport");
+	last
+	    if ($? == 0);
+	sleep(2);
+    }
 }
 
 #
@@ -546,7 +553,7 @@ sub Cleanup()
 	my $ctrlip   = $vnconfig{'CTRLIP'};
 
 	# Retry a few times cause of iptables locking stupidity.
-	for (my $i = 0; $i < 3; $i++) {
+	for (my $i = 0; $i < 5; $i++) {
 	    system("$IPTABLES -v -t nat -D PREROUTING -p tcp -d $ext_ctrlip ".
 		   "--dport $sshdport -j DNAT ".
 		   "--to-destination $ctrlip:$sshdport");