diff --git a/src/config.py b/src/config.py
--- a/src/config.py
+++ b/src/config.py
@@ -1,18 +1,18 @@
 import os
-import datetime
 import logging as log
+from logging.handlers import TimedRotatingFileHandler
 
 
-logName="/tmp/mor{0}.log".format(datetime.datetime.now().timestamp())
 log.basicConfig(
-	level=log.INFO,format="%(asctime)s %(levelname)s: %(message)s",datefmt="%Y-%m-%d %H:%M:%S",
-	filename=logName
+	level=log.INFO,format="%(asctime)s %(levelname)s: %(message)s",datefmt="%Y-%m-%d %H:%M:%S"
 )
+logger=log.getLogger()
+logger.addHandler(TimedRotatingFileHandler("/var/log/morevna.log",when="midnight",backupCount=9))
 
 version=0
 
 hosts=["127.0.0.1"]
-port=9001
+port=9901
 
 directory=os.path.join(os.path.dirname(__file__),"..")
 certfile=os.path.join(directory,"certs/cert.pem")
diff --git a/src/morevna.py b/src/morevna.py
--- a/src/morevna.py
+++ b/src/morevna.py
@@ -2,6 +2,7 @@ import sys
 import os.path
 from argparse import ArgumentParser
 
+from util import spawnDaemon
 import config as conf
 import stats
 from hashtree import HashTree
@@ -40,7 +41,7 @@ def serve(args):
 	if args.port: conf.port=args.port
 
 	s=Server(args.datafile,args.tree)
-	s.serve()
+	spawnDaemon(s.serve)
 
 
 parser=ArgumentParser()
diff --git a/src/server.py b/src/server.py
--- a/src/server.py
+++ b/src/server.py
@@ -32,6 +32,7 @@ class Server:
 	def __init__(self,filename,treeFile=""):
 		self._filename=filename
 		self._treeFile=treeFile
+		self._locked=False
 
 		if treeFile:
 			self._tree=HashTree.load(treeFile)
@@ -56,8 +57,8 @@ class Server:
 		while True:
 			with Connection(self._ss,self._ssl) as (incoming, outcoming):
 				try:
-					while True:
-						if not self._serveOne(incoming,outcoming): return
+					while self._serveOne(incoming,outcoming):
+						pass
 				except AssertionError:
 					continue
 
@@ -67,6 +68,7 @@ class Server:
 		if jsonData["command"]=="init":
 			assert jsonData["blockSize"]==self.BLOCK_SIZE
 			assert jsonData["blockCount"]==self._tree.leafCount
+			self._locked=True
 			outcoming.writeMsg({"command": "ack"})
 
 		elif jsonData["command"]=="req":
@@ -80,6 +82,7 @@ class Server:
 
 		elif jsonData["command"]=="end":
 			self._finalize()
+			self._locked=False
 			return False
 
 		else:
diff --git a/src/util.py b/src/util.py
--- a/src/util.py
+++ b/src/util.py
@@ -1,3 +1,38 @@
+import os
+import sys
+
+
+def spawnDaemon(fun):
+	# do the UNIX double-fork magic, see Stevens' "Advanced
+	# Programming in the UNIX Environment" for details (ISBN 0201563177)
+	try:
+		pid = os.fork()
+		if pid > 0:
+			# parent process, return and keep running
+			return
+	except OSError as e:
+		print("fork #1 failed: {0} ({1})".format(e.errno,e.strerror),file=sys.stderr)
+		sys.exit(1)
+
+	os.setsid()
+
+	# do second fork
+	try:
+		pid = os.fork()
+		if pid > 0:
+			# exit from second parent
+			print("[{0}] server running".format(pid))
+			sys.exit(0)
+	except OSError as e:
+		print("fork #2 failed: {0} ({1})".format(e.errno,e.strerror),file=sys.stderr)
+		sys.exit(1)
+
+	fun()
+
+	# all done
+	os._exit(os.EX_OK)
+
+
 class Progress:
 	def __init__(self,n,i0=0):
 		self._n=n