diff --git a/etc.local/linspector.conf b/etc.local/linspector.conf
index 13751c4..d165921 100644
--- a/etc.local/linspector.conf
+++ b/etc.local/linspector.conf
@@ -17,13 +17,13 @@ log_level = INFO
 ; logfile to use
 logfile = /home/hanez/code/linspector/linspector/log/linspector.log
 ; number of logfiles to keep (default: 10)
-logfile_count = 25
+logfile_count = 1
 ; logfile format. this overrides the default configured in the code
 ;logfile_format = [{time:YYYY-MM-DD HH:mm:ss.SSSSSS ZZ}] [{elapsed}] [{level}] [linspector] [{name}:{function}:{line}]: {message}
 ; log level for file based logging
 logfile_level = DEBUG
 ; size of logfiles (default: 1MB)
-logfile_size = 25 MiB
+logfile_size = 100 MiB
 
 notifications =
 plugins =
diff --git a/linspector/services/misc/random.py b/linspector/services/misc/random.py
index 50410ed..6743b63 100644
--- a/linspector/services/misc/random.py
+++ b/linspector/services/misc/random.py
@@ -33,15 +33,15 @@ class DummyService(Service):
         rnd6 = random.randint(0, 99999999999999)
         rnd7 = random.randint(0, 99999999999999)
         rnd8 = random.randint(0, 99999999999999)
-        sha512_1 = hashlib.sha512(str((str(rnd1) + str(rnd2) + str(rnd3) + str(rnd4) +
-                                  str(rnd5) + str(rnd6) + str(rnd7) + str(rnd8))).
-                                  encode('utf-8')).hexdigest()
-        sha512_2 = hashlib.sha512(str((str(rnd1) + str(rnd2) + str(rnd3) + str(rnd4) +
-                                  str(rnd5) + str(rnd6) + str(rnd7) + str(rnd8) + str(sha512_1))).
-                                  encode('utf-8')).hexdigest()
+        sha256 = hashlib.sha256(str((str(rnd1) + str(rnd2) + str(rnd3) + str(rnd4) +
+                                str(rnd5) + str(rnd6) + str(rnd7) + str(rnd8))).
+                                encode('utf-8')).hexdigest()
+        sha512 = hashlib.sha512(str((str(rnd1) + str(rnd2) + str(rnd3) + str(rnd4) +
+                                str(rnd5) + str(rnd6) + str(rnd7) + str(rnd8) + str(sha256))).
+                                encode('utf-8')).hexdigest()
         self.__log.info('identifier=' + identifier +
                         ' host=' + monitor.get_host() +
                         ' service=' + service +
                         ' status=' + ('OK' if status == 0 else 'ERROR') + ' sha512=' +
-                        sha512_2)
+                        sha512)
         return True