diff --git a/seahub/base/context_processors.py b/seahub/base/context_processors.py
index 1878efaa8f..33ee5b0b5b 100644
--- a/seahub/base/context_processors.py
+++ b/seahub/base/context_processors.py
@@ -23,6 +23,10 @@ try:
     from seahub.settings import ENABLE_PUBFILE
 except ImportError:
     ENABLE_PUBFILE = False
+try:
+    from seahub.settings import ENABLE_SYSADMIN_EXTRA
+except ImportError:
+    ENABLE_SYSADMIN_EXTRA = False
 
 def base(request):
     """
@@ -70,6 +74,7 @@ def base(request):
         'repo_password_min_length': REPO_PASSWORD_MIN_LENGTH,
         'events_enabled': EVENTS_ENABLED,
         'traffic_stats_enabled': TRAFFIC_STATS_ENABLED,
+        'sysadmin_extra_enabled': ENABLE_SYSADMIN_EXTRA,
         'mods_available': mods_available,
         'mods_enabled': mods_enabled,
         'grps': grps,
diff --git a/seahub/templates/sysadmin/base.html b/seahub/templates/sysadmin/base.html
index 18924ef128..f773a03b9e 100644
--- a/seahub/templates/sysadmin/base.html
+++ b/seahub/templates/sysadmin/base.html
@@ -25,6 +25,11 @@
             <a href="{{ SITE_ROOT }}sys/trafficadmin/" class="traffic">{% trans "Traffic" %}</a>
         </li>
         {% endif %}
+        {% if sysadmin_extra_enabled %}
+        <li class="tab {% block cur_login %}{% endblock %}">
+            <a href="{{ SITE_ROOT }}sys/loginadmin/" class="login">{% trans "Login" %}</a>
+        </li>
+        {% endif %}
     </ul>
 </div>
 {% endblock %}
diff --git a/seahub/urls.py b/seahub/urls.py
index 88e585a442..4e6f12f9c0 100644
--- a/seahub/urls.py
+++ b/seahub/urls.py
@@ -221,6 +221,12 @@ if getattr(settings, 'ENABLE_PAYMENT', False):
         (r'^pay/', include('seahub_extra.pay.urls')),
     )
 
+if getattr(settings, 'ENABLE_SYSADMIN_EXTRA', False):
+    from seahub_extra.sysadmin_extra.views import sys_login_admin
+    urlpatterns += patterns('',
+        url(r'^sys/loginadmin/', sys_login_admin, name='sys_login_admin'),
+    )
+    
 # serve office converter static files
 from seahub.utils import HAS_OFFICE_CONVERTER
 if HAS_OFFICE_CONVERTER:
diff --git a/seahub/utils/ip.py b/seahub/utils/ip.py
new file mode 100644
index 0000000000..15a59d4d96
--- /dev/null
+++ b/seahub/utils/ip.py
@@ -0,0 +1,7 @@
+def get_remote_ip(request):
+    x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
+    if x_forwarded_for:
+        ip = x_forwarded_for.split(',')[0]
+    else:
+        ip = request.META.get('REMOTE_ADDR', '-')
+    return ip