diff -Nur omniORB-4.1.7/include/omniORB4/internal/orbParameters.h omniORB-4.1.7.patched/include/omniORB4/internal/orbParameters.h
--- omniORB-4.1.7/include/omniORB4/internal/orbParameters.h	2009-05-06 18:16:18.000000000 +0200
+++ omniORB-4.1.7.patched/include/omniORB4/internal/orbParameters.h	2014-01-20 10:30:48.505009492 +0100
@@ -539,6 +539,9 @@
 //  handled; otherwise, they are not watched until the
 //  SocketCollection next scans the connection list.
 
+_CORBA_MODULE_VAR _core_attr CORBA::ULong listenBacklog;
+//  Allows setting of listen backlog size. The default value is SOMAXCONN.
+
 _CORBA_MODULE_END
 
 OMNI_NAMESPACE_END(omni)
diff -Nur omniORB-4.1.7/src/lib/omniORB/orbcore/giopServer.cc omniORB-4.1.7.patched/src/lib/omniORB/orbcore/giopServer.cc
--- omniORB-4.1.7/src/lib/omniORB/orbcore/giopServer.cc	2009-05-06 18:16:18.000000000 +0200
+++ omniORB-4.1.7.patched/src/lib/omniORB/orbcore/giopServer.cc	2014-01-20 10:31:29.642615616 +0100
@@ -165,6 +165,7 @@
 #include <giopStreamImpl.h>
 #include <initialiser.h>
 #include <omniORB4/omniInterceptors.h>
+#include <SocketCollection.h>
 #include <orbOptions.h>
 #include <orbParameters.h>
 
@@ -239,6 +240,8 @@
 //   Note that this setting has no effect on Windows, since it has no
 //   mechanism for signalling the connection watching thread.
 
+CORBA::ULong orbParameters::listenBacklog      = SOMAXCONN;
+//   A high rate of incoming connections may require a longer listen backlog.
 
 ////////////////////////////////////////////////////////////////////////////
 static const char* plural(CORBA::ULong val)
@@ -1683,8 +1686,33 @@
 
 static connectionWatchImmediateHandler connectionWatchImmediateHandler_;
 
+/////////////////////////////////////////////////////////////////////////////
+class listenBacklogHandler : public orbOptions::Handler {
+public:
 
+  listenBacklogHandler() : 
+    orbOptions::Handler("listenBacklog",
+			"listenBacklog = n >= 1",
+			1,
+			"-ORBlistenBacklog < n >= 1 >") {}
+
+  void visit(const char* value,orbOptions::Source) throw (orbOptions::BadParam) {
+
+    CORBA::ULong v;
+    if (!orbOptions::getULong(value,v) || v < 1) {
+      throw orbOptions::BadParam(key(),value,
+				 orbOptions::expect_greater_than_zero_ulong_msg);
+    }
+    orbParameters::listenBacklog = v;
+  }
+
+  void dump(orbOptions::sequenceString& result) {
+    orbOptions::addKVULong(key(),orbParameters::listenBacklog,
+			   result);
+  }
+};
 
+static listenBacklogHandler listenBacklogHandler_;
 
 /////////////////////////////////////////////////////////////////////////////
 //            Module initialiser                                           //
@@ -1701,6 +1729,7 @@
     orbOptions::singleton().registerHandler(maxServerThreadPoolSizeHandler_);
     orbOptions::singleton().registerHandler(threadPoolWatchConnectionHandler_);
     orbOptions::singleton().registerHandler(connectionWatchImmediateHandler_);
+	orbOptions::singleton().registerHandler(listenBacklogHandler_);
   }
 
   void attach() {
diff -Nur omniORB-4.1.7/src/lib/omniORB/orbcore/ssl/sslEndpoint.cc omniORB-4.1.7.patched/src/lib/omniORB/orbcore/ssl/sslEndpoint.cc
--- omniORB-4.1.7/src/lib/omniORB/orbcore/ssl/sslEndpoint.cc	2013-04-10 19:14:44.000000000 +0200
+++ omniORB-4.1.7.patched/src/lib/omniORB/orbcore/ssl/sslEndpoint.cc	2014-01-20 10:22:26.837077171 +0100
@@ -538,7 +538,7 @@
     return 0;
   }
 
-  if (listen(pd_socket,SOMAXCONN) == RC_SOCKET_ERROR) {
+  if (listen(pd_socket,orbParameters::listenBacklog) == RC_SOCKET_ERROR) {
     CLOSESOCKET(pd_socket);
     omniORB::logs(1, "Failed to listen on socket.");
     return 0;
diff -Nur omniORB-4.1.7/src/lib/omniORB/orbcore/tcp/tcpEndpoint.cc omniORB-4.1.7.patched/src/lib/omniORB/orbcore/tcp/tcpEndpoint.cc
--- omniORB-4.1.7/src/lib/omniORB/orbcore/tcp/tcpEndpoint.cc	2013-04-10 19:14:44.000000000 +0200
+++ omniORB-4.1.7.patched/src/lib/omniORB/orbcore/tcp/tcpEndpoint.cc	2014-01-20 10:22:43.953958115 +0100
@@ -522,7 +522,7 @@
     return 0;
   }
 
-  if (listen(pd_socket,SOMAXCONN) == RC_SOCKET_ERROR) {
+  if (listen(pd_socket,orbParameters::listenBacklog) == RC_SOCKET_ERROR) {
     CLOSESOCKET(pd_socket);
     omniORB::logs(1, "Failed to listen on socket.");
     return 0;