diff --git a/tests/test_handler.py b/tests/test_handler.py
index f0fa759..ac157d8 100644
--- a/tests/test_handler.py
+++ b/tests/test_handler.py
@@ -1,9 +1,9 @@
 import unittest
 import paramiko
-import webssh.handler
 
 from tornado.httpclient import HTTPRequest
 from tornado.httputil import HTTPServerRequest
+from tornado.options import options
 from tests.utils import read_file, make_tests_data_path
 from webssh.handler import MixinHandler, IndexHandler, InvalidValueError
 
@@ -17,10 +17,9 @@ class TestMixinHandler(unittest.TestCase):
 
     def test_is_forbidden(self):
         handler = MixinHandler()
-        webssh.handler.is_open_to_public = True
-        webssh.handler.forbid_public_http = True
         request = HTTPRequest('http://example.com/')
         handler.request = request
+        options.fbidhttp = True
 
         context = Mock(
             address=('8.8.8.8', 8888),
diff --git a/tests/test_settings.py b/tests/test_settings.py
index 3fac353..100a032 100644
--- a/tests/test_settings.py
+++ b/tests/test_settings.py
@@ -1,5 +1,4 @@
 import io
-import random
 import ssl
 import sys
 import os.path
@@ -8,7 +7,6 @@ import paramiko
 import tornado.options as options
 
 from tests.utils import make_tests_data_path
-from webssh import handler
 from webssh.policy import load_host_keys
 from webssh.settings import (
     get_host_keys_settings, get_policy_setting, base_dir, print_version,
@@ -141,39 +139,22 @@ class TestSettings(unittest.TestCase):
             get_trusted_downstream(options), tdstream
 
     def test_detect_is_open_to_public(self):
-        options.fbidhttp = random.choice([True, False])
-        options.address = 'localhost'
+        options.fbidhttp = True
+        options.address = '127.0.0.1'
         detect_is_open_to_public(options)
-        self.assertFalse(handler.is_open_to_public)
-        self.assertEqual(handler.forbid_public_http, options.fbidhttp)
+        self.assertFalse(options.fbidhttp)
 
-        options.fbidhttp = random.choice([True, False])
         options.fbidhttp = False
         options.address = '127.0.0.1'
         detect_is_open_to_public(options)
-        self.assertFalse(handler.is_open_to_public)
-        self.assertEqual(handler.forbid_public_http, options.fbidhttp)
-
-        options.fbidhttp = random.choice([True, False])
-        options.address = '192.168.1.1'
-        detect_is_open_to_public(options)
-        self.assertFalse(handler.is_open_to_public)
-        self.assertEqual(handler.forbid_public_http, options.fbidhttp)
+        self.assertFalse(options.fbidhttp)
 
-        options.fbidhttp = random.choice([True, False])
-        options.address = ''
-        detect_is_open_to_public(options)
-        self.assertTrue(handler.is_open_to_public)
-        self.assertEqual(handler.forbid_public_http, options.fbidhttp)
-
-        options.fbidhttp = random.choice([True, False])
+        options.fbidhttp = False
         options.address = '0.0.0.0'
         detect_is_open_to_public(options)
-        self.assertTrue(handler.is_open_to_public)
-        self.assertEqual(handler.forbid_public_http, options.fbidhttp)
+        self.assertFalse(options.fbidhttp)
 
-        options.fbidhttp = random.choice([True, False])
-        options.address = '::'
+        options.fbidhttp = True
+        options.address = '0.0.0.0'
         detect_is_open_to_public(options)
-        self.assertTrue(handler.is_open_to_public)
-        self.assertEqual(handler.forbid_public_http, options.fbidhttp)
+        self.assertTrue(options.fbidhttp)
diff --git a/webssh/handler.py b/webssh/handler.py
index 129847c..c25c36f 100644
--- a/webssh/handler.py
+++ b/webssh/handler.py
@@ -10,6 +10,7 @@ import paramiko
 import tornado.web
 
 from tornado.ioloop import IOLoop
+from tornado.options import options
 from webssh.utils import (
     is_valid_ip_address, is_valid_port, is_valid_hostname,
     to_bytes, to_str, to_int, to_ip_address, UnicodeType
@@ -32,8 +33,6 @@ KEY_MAX_SIZE = 16384
 DEFAULT_PORT = 22
 
 swallow_http_errors = True
-is_open_to_public = None
-forbid_public_http = None
 
 
 class InvalidValueError(Exception):
@@ -69,12 +68,11 @@ class MixinHandler(object):
             )
             return True
 
-        if is_open_to_public and forbid_public_http:
-            if context._orig_protocol == 'http':
-                ipaddr = to_ip_address(ip)
-                if not ipaddr.is_private:
-                    logging.warning('Public non-https request is forbidden.')
-                    return True
+        if options.fbidhttp and context._orig_protocol == 'http':
+            ipaddr = to_ip_address(ip)
+            if not ipaddr.is_private:
+                logging.warning('Public non-https request is forbidden.')
+                return True
 
     def set_default_headers(self):
         for header in self.custom_headers.items():
diff --git a/webssh/settings.py b/webssh/settings.py
index 923d78d..733b143 100644
--- a/webssh/settings.py
+++ b/webssh/settings.py
@@ -4,7 +4,6 @@ import ssl
 import sys
 
 from tornado.options import define
-from webssh import handler
 from webssh.policy import (
     load_host_keys, get_policy_class, check_policy_setting
 )
@@ -119,10 +118,7 @@ def get_trusted_downstream(options):
 
 
 def detect_is_open_to_public(options):
-    handler.forbid_public_http = options.fbidhttp
-
-    if on_public_network_interfaces(get_ips_by_name(options.address)):
-        handler.is_open_to_public = True
-        logging.info('Forbid public http: {}'.format(options.fbidhttp))
-    else:
-        handler.is_open_to_public = False
+    result = on_public_network_interfaces(get_ips_by_name(options.address))
+    if not result and options.fbidhttp:
+        options.fbidhttp = False
+    logging.info('Forbid public http: {}'.format(options.fbidhttp))