diff --git a/full/src/main/java/de/ids_mannheim/korap/authentication/KustvaktAuthenticationManager.java b/full/src/main/java/de/ids_mannheim/korap/authentication/KustvaktAuthenticationManager.java
index 7ee3506..60c3126 100644
--- a/full/src/main/java/de/ids_mannheim/korap/authentication/KustvaktAuthenticationManager.java
+++ b/full/src/main/java/de/ids_mannheim/korap/authentication/KustvaktAuthenticationManager.java
@@ -231,13 +231,11 @@
 					corpusAccess = CorpusAccess.PUB;
 				}
 				
-				if (DEBUG_LOG == true) {
-					System.out.printf("Debug: X-Forwarded-For : '%s' (%d values) -> %s\n", 
-							Arrays.toString(vals), vals.length, vals[0]);
-					System.out.printf("Debug: X-Forwarded-For : location = %s corpusAccess = %s\n",
-							location == Location.INTERN ? "INTERN" : "EXTERN", corpusAccess == CorpusAccess.ALL ? "ALL"
-									: corpusAccess == CorpusAccess.PUB ? "PUB" : "FREE");
-				}
+			    jlog.debug(String.format("X-Forwarded-For : '%s' (%d values) -> %s\n", 
+						Arrays.toString(vals), vals.length, vals[0]));
+			    jlog.debug(String.format("X-Forwarded-For : location = %s corpusAccess = %s\n",
+						location == Location.INTERN ? "INTERN" : "EXTERN", corpusAccess == CorpusAccess.ALL ? "ALL"
+								: corpusAccess == CorpusAccess.PUB ? "PUB" : "FREE"));
 
 			} catch (UnknownHostException e) {
 				// TODO Auto-generated catch block
diff --git a/full/src/main/resources/log4j.properties b/full/src/main/resources/log4j.properties
index 308c9ca..7f9c1ca 100644
--- a/full/src/main/resources/log4j.properties
+++ b/full/src/main/resources/log4j.properties
@@ -6,7 +6,7 @@
 
 #log4j.logger.de.ids_mannheim.korap.service.VirtualCorpusService = error, debugLog
 #log4j.logger.de.ids_mannheim.korap.web.controller.AuthenticationController = debug, debugLog, stdout
-
+log4j.logger.de.ids_mannheim.korap.resource.rewrite.CollectionRewrite= stdout, debugLog
 
 # Direct log messages to stdout
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
@@ -36,4 +36,4 @@
 
 
 log4j.logger.de.ids_mannheim.korap.security.ac = ERROR, policyLog
-log4j.logger.de.ids_mannheim.korap.security.auth = ERROR, authLog
\ No newline at end of file
+log4j.logger.de.ids_mannheim.korap.authentication = debug, authLog
\ No newline at end of file