diff --git a/opt/ahenk/base/registration/Registration.py b/opt/ahenk/base/registration/Registration.py
index 9ad9052..08d412c 100644
--- a/opt/ahenk/base/registration/Registration.py
+++ b/opt/ahenk/base/registration/Registration.py
@@ -4,16 +4,12 @@
 
 import datetime
 import json
-import socket
 import uuid
-import os
-import platform
-import psutil
 from uuid import getnode as get_mac
 
 from base.Scope import Scope
-from base.system.system import System
 from base.messaging.AnonymousMessager import AnonymousMessager
+from base.system.system import System
 
 
 class Registration():
@@ -99,8 +95,8 @@ class Registration():
     def get_registration_params(self):
 
         params = {
-            'ipAddresses': str(System.Hardware.Network.ip_addresses()).replace('\'localhost\'', '').replace('\'127.0.0.1\'', ''),
-            'macAddresses': System.Hardware.mac_address(),
+            'ipAddresses': System.Hardware.Network.ip_addresses(),
+            'macAddresses': System.Hardware.Network.mac_addresses(),
             'hostname': System.Os.hostname(),
             'os.name': System.Os.name(),
             'os.version': System.Os.version(),
@@ -110,8 +106,8 @@ class Registration():
             'os.distributionVersion': System.Os.distribution_version(),
             'os.architecture': System.Os.architecture(),
             'hardware.cpu.architecture': System.Hardware.Cpu.architecture(),
-            'hardware..cpu.logicalCoreCount': System.Hardware.Cpu.logical_core_count(),
-            'hardware..cpu.physicalCoreCount': System.Hardware.Cpu.physical_core_count(),
+            'hardware.cpu.logicalCoreCount': System.Hardware.Cpu.logical_core_count(),
+            'hardware.cpu.physicalCoreCount': System.Hardware.Cpu.physical_core_count(),
             'hardware.disk.total': System.Hardware.Disk.total(),
             'hardware.disk.used': System.Hardware.Disk.used(),
             'hardware.disk.free': System.Hardware.Disk.free(),
@@ -143,20 +139,3 @@ class Registration():
 
     def generate_password(self):
         return uuid.uuid4()
-
-    """
-    def get_ip_address(self):
-        f = os.popen('ifconfig eth0 | grep "inet\ addr" | cut -d: -f2 | cut -d" " -f1')
-        return f.read()
-
-
-    #TODO disabled because of netifaces dependency
-    def get_ipAddresses(self):
-        self.logger.debug('[Registration] looking for network interfaces')
-        ip_address = ""
-        for interface in netifaces.interfaces():
-            if (str(interface) != "lo"):
-                ip_address += str(netifaces.ifaddresses(interface)[netifaces.AF_INET])
-        self.logger.debug('[Registration] returning ip addresses from every interfaces')
-        return ip_address
-    """
diff --git a/opt/ahenk/base/system/system.py b/opt/ahenk/base/system/system.py
index 772c1a1..6d931bc 100644
--- a/opt/ahenk/base/system/system.py
+++ b/opt/ahenk/base/system/system.py
@@ -4,6 +4,8 @@
 
 import platform
 import psutil
+import cpuinfo
+import re
 from uuid import getnode as get_mac
 
 
@@ -143,10 +145,6 @@ class System:
 
     class Hardware(object):
 
-        @staticmethod
-        def mac_address():
-            return str(':'.join(("%012X" % get_mac())[i:i + 2] for i in range(0, 12, 2)))
-
         class Memory(object):
 
             @staticmethod
@@ -216,7 +214,18 @@ class System:
             def ip_addresses():
                 arr = []
                 for iface in psutil.net_io_counters(pernic=True):
-                    arr.append(psutil.net_if_addrs()[str(iface)][0][1])
+                    ip = psutil.net_if_addrs()[str(iface)][0][1]
+                    if re.match(r'^((\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])\.){3}(\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])$', ip) and str(ip) != 'localhost' and str(ip) != '127.0.0.1':
+                        arr.append(ip)
+                return arr
+
+            @staticmethod
+            def mac_addresses():
+                arr = []
+                for iface in psutil.net_io_counters(pernic=True):
+                    mac = psutil.net_if_addrs()[str(iface)][2][1]
+                    if re.match("[0-9a-f]{2}([-:])[0-9a-f]{2}(\\1[0-9a-f]{2}){4}$", mac.lower()) and str(mac) != '00:00:00:00:00:00':
+                        arr.append(mac.lower())
                 return arr
 
         class Cpu(object):
@@ -240,3 +249,31 @@ class System:
             @staticmethod
             def architecture():
                 return platform.processor()
+
+            @staticmethod
+            def vendor():
+                return cpuinfo.get_cpu_info()['vendor_id']
+
+            @staticmethod
+            def brand():
+                return cpuinfo.get_cpu_info()['brand']
+
+            @staticmethod
+            def hz_advertised():
+                return cpuinfo.get_cpu_info()['hz_advertised']
+
+            @staticmethod
+            def hz_actual():
+                return cpuinfo.get_cpu_info()['hz_actual']
+
+            @staticmethod
+            def bit():
+                return cpuinfo.get_cpu_info()['bits']
+
+            @staticmethod
+            def family():
+                return cpuinfo.get_cpu_info()['family']
+
+            @staticmethod
+            def model():
+                return cpuinfo.get_cpu_info()['model']