diff --git a/Authors b/Authors
index 565444ee12ef..6e0a7735f5d2 100644
--- a/Authors
+++ b/Authors
@@ -4,6 +4,7 @@ Anthony Young <sleepsonthefloor@gmail.com>
 Armando Migliaccio <Armando.Migliaccio@eu.citrix.com>
 Chris Behrens <cbehrens@codestud.com>
 Chmouel Boudjnah <chmouel@chmouel.com>
+David Pravec <David.Pravec@danix.org>
 Dean Troyer <dtroyer@gmail.com>
 Devin Carlen <devin.carlen@gmail.com>
 Eldar Nugaev <enugaev@griddynamics.com>
diff --git a/contrib/nova.sh b/contrib/nova.sh
index 30df4edb654a..da1ba030c3f1 100755
--- a/contrib/nova.sh
+++ b/contrib/nova.sh
@@ -15,7 +15,7 @@ if [ ! -n "$HOST_IP" ]; then
     # NOTE(vish): This will just get the first ip in the list, so if you
     #             have more than one eth device set up, this will fail, and
     #             you should explicitly set HOST_IP in your environment
-    HOST_IP=`ifconfig  | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`
+    HOST_IP=`LC_ALL=C ifconfig  | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`
 fi
 
 USE_MYSQL=${USE_MYSQL:-0}
diff --git a/contrib/puppet/files/production/nova-iptables b/contrib/puppet/files/production/nova-iptables
index b7b52df87753..61e2ca2b92d5 100755
--- a/contrib/puppet/files/production/nova-iptables
+++ b/contrib/puppet/files/production/nova-iptables
@@ -30,6 +30,8 @@ if [ -f /etc/default/nova-iptables ] ; then
     . /etc/default/nova-iptables
 fi
 
+export LC_ALL=C
+
 API_PORT=${API_PORT:-"8773"}
 
 if [ ! -n "$IP" ]; then
diff --git a/nova/cloudpipe/bootscript.sh b/nova/cloudpipe/bootscript.sh
index 30d9ad1021ac..551b40f2fd5e 100755
--- a/nova/cloudpipe/bootscript.sh
+++ b/nova/cloudpipe/bootscript.sh
@@ -19,6 +19,7 @@
 
 # This gets zipped and run on the cloudpipe-managed OpenVPN server
 
+export LC_ALL=C 
 export SUPERVISOR="http://10.255.255.1:8773/cloudpipe"
 export VPN_IP=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{print $1}'`
 export BROADCAST=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f3 | awk '{print $1}'`
diff --git a/nova/tests/process_unittest.py b/nova/tests/process_unittest.py
index 67245af039e4..516b2452ff9d 100644
--- a/nova/tests/process_unittest.py
+++ b/nova/tests/process_unittest.py
@@ -49,7 +49,7 @@ class ProcessTestCase(test.TrialTestCase):
 
     def test_execute_stderr(self):
         pool = process.ProcessPool(2)
-        d = pool.simple_execute('cat BAD_FILE', check_exit_code=False)
+        d = pool.simple_execute('LC_ALL=C cat BAD_FILE', check_exit_code=False)
 
         def _check(rv):
             self.assertEqual(rv[0], '')
diff --git a/tools/clean-vlans b/tools/clean-vlans
index f5b0295ad1ee..820a9dbe5b0e 100755
--- a/tools/clean-vlans
+++ b/tools/clean-vlans
@@ -17,6 +17,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+export LC_ALL=C 
+
 sudo ifconfig -a | grep br | grep -v bridge | cut -f1 -d" " | xargs -n1 -ifoo ifconfig foo down
 sudo ifconfig -a | grep br | grep -v bridge | cut -f1 -d" " | xargs -n1 -ifoo brctl delbr foo
 sudo ifconfig -a | grep vlan | grep -v vlan124 | grep -v vlan5 | cut -f1 -d" " | xargs -n1 -ifoo ifconfig foo down
diff --git a/tools/setup_iptables.sh b/tools/setup_iptables.sh
index 673353eb4332..8be8cd812638 100755
--- a/tools/setup_iptables.sh
+++ b/tools/setup_iptables.sh
@@ -36,7 +36,7 @@ else
     # NOTE(vish): This will just get the first ip in the list, so if you
     #             have more than one eth device set up, this will fail, and
     #             you should explicitly pass in the ip of the instance
-    IP=`ifconfig  | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`
+    IP=`LC_ALL=C ifconfig  | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`
 fi
 
 if [ -n "$3" ]; then