diff --git a/source/de/anomic/http/httpc.java b/source/de/anomic/http/httpc.java
index 02a80e4cd..ee37ab02e 100644
--- a/source/de/anomic/http/httpc.java
+++ b/source/de/anomic/http/httpc.java
@@ -622,21 +622,22 @@ public final class httpc {
             this.adressed_host = server;
             this.adressed_port = port;
             this.target_virtual_host = vhost;
-            InetAddress hostip;
-//            if ((server.equals("localhost")) || (server.equals("127.0.0.1")) || (server.startsWith("192.168.")) || (server.startsWith("10."))) {
-//                hostip = server;
-//            } else {
-                hostip = dnsResolve(server);
-                if (hostip == null) throw new UnknownHostException(server);
-//            }
-
+            
             // creating a socket
             this.socket = (ssl) 
                         ? theSSLSockFactory.createSocket()
                         : new Socket();
             
             // creating a socket address
-            InetSocketAddress address = new InetSocketAddress(hostip, port);
+            InetSocketAddress address = null;
+            if (!this.remoteProxyUse) {
+                // only try to resolve the address if we are not using a proxy
+                InetAddress hostip = dnsResolve(server);
+                if (hostip == null) throw new UnknownHostException(server);
+                address = new InetSocketAddress(hostip, port);
+            } else {
+                address = new InetSocketAddress(server,port);
+            }            
 
             // trying to establish a connection to the address
             this.socket.connect(address,timeout);
diff --git a/source/de/anomic/plasma/plasmaCrawlStacker.java b/source/de/anomic/plasma/plasmaCrawlStacker.java
index 42fef71d8..64cc22145 100644
--- a/source/de/anomic/plasma/plasmaCrawlStacker.java
+++ b/source/de/anomic/plasma/plasmaCrawlStacker.java
@@ -285,13 +285,16 @@ public final class plasmaCrawlStacker {
         }
         
         // check if ip is local ip address
-        checkInterruption();
+        checkInterruption();        
         InetAddress hostAddress = httpc.dnsResolve(nexturl.getHost());
         if (hostAddress == null) {
-            reason = plasmaCrawlEURL.DENIED_UNKNOWN_HOST;
-            this.log.logFine("Unknown host in URL '" + nexturlString + "'. " +
-                    "Stack processing time: " + (System.currentTimeMillis()-startTime) + "ms");
-            return reason;                
+            // if a http proxy is configured name resolution may not work
+            if (this.sb.remoteProxyConfig == null || !this.sb.remoteProxyConfig.useProxy()) {
+                reason = plasmaCrawlEURL.DENIED_UNKNOWN_HOST;
+                this.log.logFine("Unknown host in URL '" + nexturlString + "'. " +
+                        "Stack processing time: " + (System.currentTimeMillis()-startTime) + "ms");
+                return reason;                
+            }
         } else if (hostAddress.isSiteLocalAddress()) {
             reason = plasmaCrawlEURL.DENIED_PRIVATE_IP_ADDRESS;
             this.log.logFine("Host in URL '" + nexturlString + "' has private IP address. " +