Index: /trunk/FACT++/src/DimSetup.cc
===================================================================
--- /trunk/FACT++/src/DimSetup.cc	(revision 12081)
+++ /trunk/FACT++/src/DimSetup.cc	(revision 12082)
@@ -160,4 +160,12 @@
 void Dim::Setup(const std::string &dns, const std::string &host)
 {
+    if (dns.empty())
+    {
+        setenv("DIM_DNS_NODE", "...", 1);
+        //unsetenv("DIM_DNS_NODE");
+        //unsetenv("DIM_HOST_NODE");
+        return;
+    }
+
     const string loc = host.empty() ? Dim::GetLocalIp() : host;