From 597a4f2273f9dda0dbac45b021706ce8b715f93c Mon Sep 17 00:00:00 2001
From: Julien Boeuf <jboeuf@google.com>
Date: Mon, 23 Feb 2015 15:57:14 -0800
Subject: [PATCH] Verifying the peer name on the X509 Certs correctly.

- The SANs take precedence over the CN.
- The CN is only checked if there are no SANs.
- Fixing the tests as the test cert did not list *.test.google.com in
  the SANs. Will fix the test cert another time...
---
 src/core/tsi/ssl_transport_security.c         | 32 ++++++++++++-------
 src/node/test/interop_sanity_test.js          |  2 +-
 src/php/tests/interop/interop_client.php      |  2 +-
 .../tests/unit_tests/SecureEndToEndTest.php   |  2 +-
 src/ruby/bin/interop/interop_client.rb        |  2 +-
 src/ruby/bin/math_client.rb                   |  2 +-
 src/ruby/bin/noproto_client.rb                |  2 +-
 src/ruby/spec/client_server_spec.rb           |  2 +-
 src/ruby/spec/generic/client_stub_spec.rb     |  2 +-
 test/core/end2end/dualstack_socket_test.c     |  4 +--
 .../fixtures/chttp2_simple_ssl_fullstack.c    |  2 +-
 .../chttp2_simple_ssl_with_oauth2_fullstack.c |  2 +-
 test/core/end2end/tests/cancel_after_accept.c |  2 +-
 .../cancel_after_accept_and_writes_closed.c   |  4 +--
 ...el_after_accept_and_writes_closed_legacy.c |  4 +--
 .../tests/cancel_after_accept_legacy.c        |  4 +--
 test/core/end2end/tests/cancel_after_invoke.c |  2 +-
 .../tests/cancel_after_invoke_legacy.c        |  2 +-
 .../core/end2end/tests/cancel_before_invoke.c |  2 +-
 .../tests/cancel_before_invoke_legacy.c       |  2 +-
 test/core/end2end/tests/cancel_in_a_vacuum.c  |  2 +-
 .../end2end/tests/cancel_in_a_vacuum_legacy.c |  2 +-
 .../end2end/tests/census_simple_request.c     |  4 +--
 .../tests/census_simple_request_legacy.c      |  4 +--
 test/core/end2end/tests/disappearing_server.c |  4 +--
 .../tests/disappearing_server_legacy.c        |  4 +--
 ..._server_shutdown_finishes_inflight_calls.c |  4 +--
 ..._shutdown_finishes_inflight_calls_legacy.c |  4 +--
 test/core/end2end/tests/empty_batch.c         |  2 +-
 .../end2end/tests/graceful_server_shutdown.c  |  4 +--
 .../tests/graceful_server_shutdown_legacy.c   |  4 +--
 .../core/end2end/tests/invoke_large_request.c |  4 +--
 .../tests/invoke_large_request_legacy.c       |  4 +--
 .../end2end/tests/max_concurrent_streams.c    | 12 +++----
 .../tests/max_concurrent_streams_legacy.c     | 12 +++----
 test/core/end2end/tests/ping_pong_streaming.c |  4 +--
 .../tests/ping_pong_streaming_legacy.c        |  4 +--
 ...esponse_with_binary_metadata_and_payload.c |  4 +--
 ..._with_binary_metadata_and_payload_legacy.c |  4 +--
 ...quest_response_with_metadata_and_payload.c |  4 +--
 ...esponse_with_metadata_and_payload_legacy.c |  4 +--
 .../tests/request_response_with_payload.c     |  4 +--
 .../request_response_with_payload_legacy.c    |  4 +--
 ...ponse_with_trailing_metadata_and_payload.c |  4 +--
 ...ith_trailing_metadata_and_payload_legacy.c |  4 +--
 .../tests/request_with_large_metadata.c       |  4 +--
 .../request_with_large_metadata_legacy.c      |  4 +--
 .../core/end2end/tests/request_with_payload.c |  4 +--
 .../tests/request_with_payload_legacy.c       |  4 +--
 .../end2end/tests/simple_delayed_request.c    |  4 +--
 .../tests/simple_delayed_request_legacy.c     |  4 +--
 test/core/end2end/tests/simple_request.c      |  4 +--
 .../end2end/tests/simple_request_legacy.c     |  8 ++---
 test/core/end2end/tests/thread_stress.c       |  2 +-
 .../core/end2end/tests/thread_stress_legacy.c |  2 +-
 .../writes_done_hangs_with_pending_read.c     |  4 +--
 ...ites_done_hangs_with_pending_read_legacy.c |  4 +--
 test/cpp/interop/client.cc                    |  2 +-
 test/cpp/util/create_test_channel.cc          |  2 +-
 59 files changed, 124 insertions(+), 116 deletions(-)

diff --git a/src/core/tsi/ssl_transport_security.c b/src/core/tsi/ssl_transport_security.c
index 92fcb96dd2..f1a52746d2 100644
--- a/src/core/tsi/ssl_transport_security.c
+++ b/src/core/tsi/ssl_transport_security.c
@@ -1282,25 +1282,18 @@ tsi_result tsi_create_ssl_server_handshaker_factory(
 
 int tsi_ssl_peer_matches_name(const tsi_peer* peer, const char* name) {
   size_t i = 0;
-  const tsi_peer_property* property = tsi_peer_get_property_by_name(
-      peer, TSI_X509_SUBJECT_COMMON_NAME_PEER_PROPERTY);
-  if (property == NULL || property->type != TSI_PEER_PROPERTY_TYPE_STRING) {
-    gpr_log(GPR_ERROR, "Invalid x509 subject common name property.");
-    return 0;
-  }
-  if (does_entry_match_name(property->value.string.data,
-                            property->value.string.length, name)) {
-    return 1;
-  }
+  size_t san_count = 0;
 
-  property = tsi_peer_get_property_by_name(
+  /* Check the SAN first. */
+  const tsi_peer_property* property = tsi_peer_get_property_by_name(
       peer, TSI_X509_SUBJECT_ALTERNATIVE_NAMES_PEER_PROPERTY);
   if (property == NULL || property->type != TSI_PEER_PROPERTY_TYPE_LIST) {
     gpr_log(GPR_ERROR, "Invalid x509 subject alternative names property.");
     return 0;
   }
 
-  for (i = 0; i < property->value.list.child_count; i++) {
+  san_count = property->value.list.child_count;
+  for (i = 0; i < san_count; i++) {
     const tsi_peer_property* alt_name_property =
         &property->value.list.children[i];
     if (alt_name_property->type != TSI_PEER_PROPERTY_TYPE_STRING) {
@@ -1312,5 +1305,20 @@ int tsi_ssl_peer_matches_name(const tsi_peer* peer, const char* name) {
       return 1;
     }
   }
+
+  /* If there's no SAN, try the CN. */
+  if (san_count == 0) {
+    property = tsi_peer_get_property_by_name(
+        peer, TSI_X509_SUBJECT_COMMON_NAME_PEER_PROPERTY);
+    if (property == NULL || property->type != TSI_PEER_PROPERTY_TYPE_STRING) {
+      gpr_log(GPR_ERROR, "Invalid x509 subject common name property.");
+      return 0;
+    }
+    if (does_entry_match_name(property->value.string.data,
+                              property->value.string.length, name)) {
+      return 1;
+    }
+  }
+
   return 0; /* Not found. */
 }
diff --git a/src/node/test/interop_sanity_test.js b/src/node/test/interop_sanity_test.js
index 8dc933eac5..6b3aa3dd84 100644
--- a/src/node/test/interop_sanity_test.js
+++ b/src/node/test/interop_sanity_test.js
@@ -40,7 +40,7 @@ var server;
 
 var port;
 
-var name_override = 'foo.test.google.com';
+var name_override = 'foo.test.google.fr';
 
 describe('Interop tests', function() {
   before(function(done) {
diff --git a/src/php/tests/interop/interop_client.php b/src/php/tests/interop/interop_client.php
index 5a09fc7d78..82ca438169 100755
--- a/src/php/tests/interop/interop_client.php
+++ b/src/php/tests/interop/interop_client.php
@@ -215,7 +215,7 @@ $stub = new grpc\testing\TestServiceClient(
     new Grpc\BaseStub(
         $server_address,
         [
-            'grpc.ssl_target_name_override' => 'foo.test.google.com',
+            'grpc.ssl_target_name_override' => 'foo.test.google.fr',
             'credentials' => $credentials
          ]));
 
diff --git a/src/php/tests/unit_tests/SecureEndToEndTest.php b/src/php/tests/unit_tests/SecureEndToEndTest.php
index b19ac80ddd..c23dd791ac 100755
--- a/src/php/tests/unit_tests/SecureEndToEndTest.php
+++ b/src/php/tests/unit_tests/SecureEndToEndTest.php
@@ -47,7 +47,7 @@ class SecureEndToEndTest extends PHPUnit_Framework_TestCase{
     $this->channel = new Grpc\Channel(
         'localhost:' . $port,
         [
-            'grpc.ssl_target_name_override' => 'foo.test.google.com',
+            'grpc.ssl_target_name_override' => 'foo.test.google.fr',
             'credentials' => $credentials
          ]);
   }
diff --git a/src/ruby/bin/interop/interop_client.rb b/src/ruby/bin/interop/interop_client.rb
index 76402b7c89..380ceb11df 100755
--- a/src/ruby/bin/interop/interop_client.rb
+++ b/src/ruby/bin/interop/interop_client.rb
@@ -291,7 +291,7 @@ Args = Struct.new(:default_service_account, :host, :host_override,
 # validates the the command line options, returning them as a Hash.
 def parse_args
   args = Args.new
-  args.host_override = 'foo.test.google.com'
+  args.host_override = 'foo.test.google.fr'
   OptionParser.new do |opts|
     opts.on('--oauth_scope scope',
             'Scope for OAuth tokens') { |v| args['oauth_scope'] = v }
diff --git a/src/ruby/bin/math_client.rb b/src/ruby/bin/math_client.rb
index cb085d4d42..db254efb00 100755
--- a/src/ruby/bin/math_client.rb
+++ b/src/ruby/bin/math_client.rb
@@ -127,7 +127,7 @@ def main
   if options['secure']
     stub_opts = {
       :creds => test_creds,
-      GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.com'
+      GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr'
     }
     p stub_opts
     p options['host']
diff --git a/src/ruby/bin/noproto_client.rb b/src/ruby/bin/noproto_client.rb
index 44710520d2..f3fd110347 100755
--- a/src/ruby/bin/noproto_client.rb
+++ b/src/ruby/bin/noproto_client.rb
@@ -89,7 +89,7 @@ def main
   if options['secure']
     stub_opts = {
       :creds => test_creds,
-      GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.com'
+      GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr'
     }
     p stub_opts
     p options['host']
diff --git a/src/ruby/spec/client_server_spec.rb b/src/ruby/spec/client_server_spec.rb
index 52c985786a..030ff328f2 100644
--- a/src/ruby/spec/client_server_spec.rb
+++ b/src/ruby/spec/client_server_spec.rb
@@ -353,7 +353,7 @@ describe 'the secure http client/server' do
     @server = GRPC::Core::Server.new(@server_queue, nil, server_creds)
     server_port = @server.add_http2_port(server_host, true)
     @server.start
-    args = { Channel::SSL_TARGET => 'foo.test.google.com' }
+    args = { Channel::SSL_TARGET => 'foo.test.google.fr' }
     @ch = Channel.new("0.0.0.0:#{server_port}", args,
                       GRPC::Core::Credentials.new(certs[0], nil, nil))
   end
diff --git a/src/ruby/spec/generic/client_stub_spec.rb b/src/ruby/spec/generic/client_stub_spec.rb
index 297a133831..adf354f4ee 100644
--- a/src/ruby/spec/generic/client_stub_spec.rb
+++ b/src/ruby/spec/generic/client_stub_spec.rb
@@ -116,7 +116,7 @@ describe 'ClientStub' do
       host = FAKE_HOST
       blk = proc do
         opts = {
-          GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.com',
+          GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr',
           a_channel_arg: 'an_arg',
           creds: GRPC::Core::Credentials.new(certs[0], nil, nil)
         }
diff --git a/test/core/end2end/dualstack_socket_test.c b/test/core/end2end/dualstack_socket_test.c
index 2c4c3b7746..62676d01e0 100644
--- a/test/core/end2end/dualstack_socket_test.c
+++ b/test/core/end2end/dualstack_socket_test.c
@@ -112,7 +112,7 @@ void test_connect(const char *server_host, const char *client_host, int port,
   }
 
   /* Send a trivial request. */
-  c = grpc_channel_create_call_old(client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -126,7 +126,7 @@ void test_connect(const char *server_host, const char *client_host, int port,
 
     GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(server, tag(100)));
     cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                             "foo.test.google.com", deadline, NULL);
+                             "foo.test.google.fr", deadline, NULL);
     cq_verify(v_server);
 
     GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c b/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c
index 1db9e727b8..9343eb5a42 100644
--- a/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c
+++ b/test/core/end2end/fixtures/chttp2_simple_ssl_fullstack.c
@@ -105,7 +105,7 @@ static void chttp2_init_client_simple_ssl_secure_fullstack(
       grpc_ssl_credentials_create(NULL, NULL);
   grpc_arg ssl_name_override = {GRPC_ARG_STRING,
                                 GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
-                                {"foo.test.google.com"}};
+                                {"foo.test.google.fr"}};
   grpc_channel_args *new_client_args =
       grpc_channel_args_copy_and_add(client_args, &ssl_name_override);
   chttp2_init_client_secure_fullstack(f, new_client_args, ssl_creds);
diff --git a/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c b/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c
index 35e022c494..9fb95c95d9 100644
--- a/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c
+++ b/test/core/end2end/fixtures/chttp2_simple_ssl_with_oauth2_fullstack.c
@@ -107,7 +107,7 @@ static void chttp2_init_client_simple_ssl_with_oauth2_secure_fullstack(
       grpc_composite_credentials_create(ssl_creds, oauth2_creds);
   grpc_arg ssl_name_override = {GRPC_ARG_STRING,
                                 GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
-                                {"foo.test.google.com"}};
+                                {"foo.test.google.fr"}};
   grpc_channel_args *new_client_args =
       grpc_channel_args_copy_and_add(client_args, &ssl_name_override);
   chttp2_init_client_secure_fullstack(f, new_client_args, ssl_oauth2_creds);
diff --git a/test/core/end2end/tests/cancel_after_accept.c b/test/core/end2end/tests/cancel_after_accept.c
index faaa14727c..1aeb723553 100644
--- a/test/core/end2end/tests/cancel_after_accept.c
+++ b/test/core/end2end/tests/cancel_after_accept.c
@@ -132,7 +132,7 @@ static void test_cancel_after_accept(grpc_end2end_test_config config,
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
diff --git a/test/core/end2end/tests/cancel_after_accept_and_writes_closed.c b/test/core/end2end/tests/cancel_after_accept_and_writes_closed.c
index c6fb8b3ea2..a69f86a327 100644
--- a/test/core/end2end/tests/cancel_after_accept_and_writes_closed.c
+++ b/test/core/end2end/tests/cancel_after_accept_and_writes_closed.c
@@ -113,7 +113,7 @@ static void test_cancel_after_accept_and_writes_closed(
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -122,7 +122,7 @@ static void test_cancel_after_accept_and_writes_closed(
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/cancel_after_accept_and_writes_closed_legacy.c b/test/core/end2end/tests/cancel_after_accept_and_writes_closed_legacy.c
index 85b7599b19..6a3a6528b9 100644
--- a/test/core/end2end/tests/cancel_after_accept_and_writes_closed_legacy.c
+++ b/test/core/end2end/tests/cancel_after_accept_and_writes_closed_legacy.c
@@ -113,7 +113,7 @@ static void test_cancel_after_accept_and_writes_closed(
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -121,7 +121,7 @@ static void test_cancel_after_accept_and_writes_closed(
              grpc_call_invoke_old(c, f.client_cq, tag(2), tag(3), 0));
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/cancel_after_accept_legacy.c b/test/core/end2end/tests/cancel_after_accept_legacy.c
index 345c31d31f..15338b5c7a 100644
--- a/test/core/end2end/tests/cancel_after_accept_legacy.c
+++ b/test/core/end2end/tests/cancel_after_accept_legacy.c
@@ -113,7 +113,7 @@ static void test_cancel_after_accept(grpc_end2end_test_config config,
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -121,7 +121,7 @@ static void test_cancel_after_accept(grpc_end2end_test_config config,
              grpc_call_invoke_old(c, f.client_cq, tag(2), tag(3), 0));
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/cancel_after_invoke.c b/test/core/end2end/tests/cancel_after_invoke.c
index 3c75024922..71d241ffee 100644
--- a/test/core/end2end/tests/cancel_after_invoke.c
+++ b/test/core/end2end/tests/cancel_after_invoke.c
@@ -125,7 +125,7 @@ static void test_cancel_after_invoke(grpc_end2end_test_config config,
       grpc_byte_buffer_create(&request_payload_slice, 1);
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
diff --git a/test/core/end2end/tests/cancel_after_invoke_legacy.c b/test/core/end2end/tests/cancel_after_invoke_legacy.c
index 64af7cd3db..092b35d0a9 100644
--- a/test/core/end2end/tests/cancel_after_invoke_legacy.c
+++ b/test/core/end2end/tests/cancel_after_invoke_legacy.c
@@ -111,7 +111,7 @@ static void test_cancel_after_invoke(grpc_end2end_test_config config,
   gpr_timespec deadline = five_seconds_time();
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
diff --git a/test/core/end2end/tests/cancel_before_invoke.c b/test/core/end2end/tests/cancel_before_invoke.c
index bee6dd2e7b..0ab9ac6c2f 100644
--- a/test/core/end2end/tests/cancel_before_invoke.c
+++ b/test/core/end2end/tests/cancel_before_invoke.c
@@ -123,7 +123,7 @@ static void test_cancel_before_invoke(grpc_end2end_test_config config, int test_
       grpc_byte_buffer_create(&request_payload_slice, 1);
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_call_cancel(c));
diff --git a/test/core/end2end/tests/cancel_before_invoke_legacy.c b/test/core/end2end/tests/cancel_before_invoke_legacy.c
index 23e82cf268..0c308acde0 100644
--- a/test/core/end2end/tests/cancel_before_invoke_legacy.c
+++ b/test/core/end2end/tests/cancel_before_invoke_legacy.c
@@ -109,7 +109,7 @@ static void test_cancel_before_invoke(grpc_end2end_test_config config) {
   gpr_timespec deadline = five_seconds_time();
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
diff --git a/test/core/end2end/tests/cancel_in_a_vacuum.c b/test/core/end2end/tests/cancel_in_a_vacuum.c
index 8228353b09..6cb87525d0 100644
--- a/test/core/end2end/tests/cancel_in_a_vacuum.c
+++ b/test/core/end2end/tests/cancel_in_a_vacuum.c
@@ -110,7 +110,7 @@ static void test_cancel_in_a_vacuum(grpc_end2end_test_config config,
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   GPR_ASSERT(GRPC_CALL_OK == mode.initiate_cancel(c));
diff --git a/test/core/end2end/tests/cancel_in_a_vacuum_legacy.c b/test/core/end2end/tests/cancel_in_a_vacuum_legacy.c
index 869f091180..cc6297b133 100644
--- a/test/core/end2end/tests/cancel_in_a_vacuum_legacy.c
+++ b/test/core/end2end/tests/cancel_in_a_vacuum_legacy.c
@@ -109,7 +109,7 @@ static void test_cancel_in_a_vacuum(grpc_end2end_test_config config,
   gpr_timespec deadline = five_seconds_time();
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
diff --git a/test/core/end2end/tests/census_simple_request.c b/test/core/end2end/tests/census_simple_request.c
index 003a8bef9b..98244db541 100644
--- a/test/core/end2end/tests/census_simple_request.c
+++ b/test/core/end2end/tests/census_simple_request.c
@@ -106,7 +106,7 @@ static void test_body(grpc_end2end_test_fixture f) {
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
   tag(1);
@@ -118,7 +118,7 @@ static void test_body(grpc_end2end_test_fixture f) {
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/census_simple_request_legacy.c b/test/core/end2end/tests/census_simple_request_legacy.c
index 003a8bef9b..98244db541 100644
--- a/test/core/end2end/tests/census_simple_request_legacy.c
+++ b/test/core/end2end/tests/census_simple_request_legacy.c
@@ -106,7 +106,7 @@ static void test_body(grpc_end2end_test_fixture f) {
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
   tag(1);
@@ -118,7 +118,7 @@ static void test_body(grpc_end2end_test_fixture f) {
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/disappearing_server.c b/test/core/end2end/tests/disappearing_server.c
index 611589678f..d5d1550f90 100644
--- a/test/core/end2end/tests/disappearing_server.c
+++ b/test/core/end2end/tests/disappearing_server.c
@@ -97,7 +97,7 @@ static void do_request_and_shutdown_server(grpc_end2end_test_fixture *f,
   grpc_call *s;
   gpr_timespec deadline = five_seconds_time();
 
-  c = grpc_channel_create_call_old(f->client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f->client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -110,7 +110,7 @@ static void do_request_and_shutdown_server(grpc_end2end_test_fixture *f,
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f->server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/disappearing_server_legacy.c b/test/core/end2end/tests/disappearing_server_legacy.c
index ff8832a231..7dd6804b38 100644
--- a/test/core/end2end/tests/disappearing_server_legacy.c
+++ b/test/core/end2end/tests/disappearing_server_legacy.c
@@ -97,7 +97,7 @@ static void do_request_and_shutdown_server(grpc_end2end_test_fixture *f,
   grpc_call *s;
   gpr_timespec deadline = five_seconds_time();
 
-  c = grpc_channel_create_call_old(f->client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f->client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -109,7 +109,7 @@ static void do_request_and_shutdown_server(grpc_end2end_test_fixture *f,
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f->server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls.c b/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls.c
index 49ec4715cc..d65617c473 100644
--- a/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls.c
+++ b/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls.c
@@ -111,7 +111,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -124,7 +124,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls_legacy.c b/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls_legacy.c
index 2e3a05e669..09ddfc1671 100644
--- a/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls_legacy.c
+++ b/test/core/end2end/tests/early_server_shutdown_finishes_inflight_calls_legacy.c
@@ -111,7 +111,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -123,7 +123,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/empty_batch.c b/test/core/end2end/tests/empty_batch.c
index 7faeeaa889..de22518301 100644
--- a/test/core/end2end/tests/empty_batch.c
+++ b/test/core/end2end/tests/empty_batch.c
@@ -111,7 +111,7 @@ static void empty_batch_body(grpc_end2end_test_fixture f) {
   grpc_op *op = NULL;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c, op, 0, tag(1)));
diff --git a/test/core/end2end/tests/graceful_server_shutdown.c b/test/core/end2end/tests/graceful_server_shutdown.c
index ab9792e40a..9227d3bd46 100644
--- a/test/core/end2end/tests/graceful_server_shutdown.c
+++ b/test/core/end2end/tests/graceful_server_shutdown.c
@@ -110,7 +110,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -123,7 +123,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/graceful_server_shutdown_legacy.c b/test/core/end2end/tests/graceful_server_shutdown_legacy.c
index 852a153acc..19c895eaa2 100644
--- a/test/core/end2end/tests/graceful_server_shutdown_legacy.c
+++ b/test/core/end2end/tests/graceful_server_shutdown_legacy.c
@@ -110,7 +110,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -122,7 +122,7 @@ static void test_early_server_shutdown_finishes_inflight_calls(
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/invoke_large_request.c b/test/core/end2end/tests/invoke_large_request.c
index 2a302e2b13..86a0fbdb70 100644
--- a/test/core/end2end/tests/invoke_large_request.c
+++ b/test/core/end2end/tests/invoke_large_request.c
@@ -122,7 +122,7 @@ static void test_invoke_large_request(grpc_end2end_test_config config) {
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -139,7 +139,7 @@ static void test_invoke_large_request(grpc_end2end_test_config config) {
   cq_verify_empty(v_client);
 
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/invoke_large_request_legacy.c b/test/core/end2end/tests/invoke_large_request_legacy.c
index 875458e7f8..d0a1cebfcb 100644
--- a/test/core/end2end/tests/invoke_large_request_legacy.c
+++ b/test/core/end2end/tests/invoke_large_request_legacy.c
@@ -122,7 +122,7 @@ static void test_invoke_large_request(grpc_end2end_test_config config) {
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -138,7 +138,7 @@ static void test_invoke_large_request(grpc_end2end_test_config config) {
      request (as this request is very large) */
   cq_verify_empty(v_client);
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/max_concurrent_streams.c b/test/core/end2end/tests/max_concurrent_streams.c
index 85369b5aac..743048881d 100644
--- a/test/core/end2end/tests/max_concurrent_streams.c
+++ b/test/core/end2end/tests/max_concurrent_streams.c
@@ -109,7 +109,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -122,7 +122,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
@@ -182,10 +182,10 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
   /* start two requests - ensuring that the second is not accepted until
      the first completes */
   deadline = five_seconds_time();
-  c1 = grpc_channel_create_call_old(f.client, "/alpha", "foo.test.google.com",
+  c1 = grpc_channel_create_call_old(f.client, "/alpha", "foo.test.google.fr",
                                     deadline);
   GPR_ASSERT(c1);
-  c2 = grpc_channel_create_call_old(f.client, "/beta", "foo.test.google.com",
+  c2 = grpc_channel_create_call_old(f.client, "/beta", "foo.test.google.fr",
                                     deadline);
   GPR_ASSERT(c1);
 
@@ -211,7 +211,7 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
 
   cq_expect_server_rpc_new(v_server, &s1, tag(100),
                            live_call == 300 ? "/alpha" : "/beta",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
@@ -237,7 +237,7 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(200)));
   cq_expect_server_rpc_new(v_server, &s2, tag(200),
                            live_call == 300 ? "/alpha" : "/beta",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/max_concurrent_streams_legacy.c b/test/core/end2end/tests/max_concurrent_streams_legacy.c
index 0cb118d795..8bf1154387 100644
--- a/test/core/end2end/tests/max_concurrent_streams_legacy.c
+++ b/test/core/end2end/tests/max_concurrent_streams_legacy.c
@@ -109,7 +109,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -121,7 +121,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
@@ -182,10 +182,10 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
   /* start two requests - ensuring that the second is not accepted until
      the first completes */
   deadline = five_seconds_time();
-  c1 = grpc_channel_create_call_old(f.client, "/alpha", "foo.test.google.com",
+  c1 = grpc_channel_create_call_old(f.client, "/alpha", "foo.test.google.fr",
                                     deadline);
   GPR_ASSERT(c1);
-  c2 = grpc_channel_create_call_old(f.client, "/beta", "foo.test.google.com",
+  c2 = grpc_channel_create_call_old(f.client, "/beta", "foo.test.google.fr",
                                     deadline);
   GPR_ASSERT(c1);
 
@@ -211,7 +211,7 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
 
   cq_expect_server_rpc_new(v_server, &s1, tag(100),
                            live_call == 300 ? "/alpha" : "/beta",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
@@ -237,7 +237,7 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(200)));
   cq_expect_server_rpc_new(v_server, &s2, tag(200),
                            live_call == 300 ? "/alpha" : "/beta",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/ping_pong_streaming.c b/test/core/end2end/tests/ping_pong_streaming.c
index 2930ba6143..06a029eb65 100644
--- a/test/core/end2end/tests/ping_pong_streaming.c
+++ b/test/core/end2end/tests/ping_pong_streaming.c
@@ -118,7 +118,7 @@ static void test_pingpong_streaming(grpc_end2end_test_config config,
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
   gpr_log(GPR_INFO, "testing with %d message pairs.", messages);
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -128,7 +128,7 @@ static void test_pingpong_streaming(grpc_end2end_test_config config,
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
 
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
   GPR_ASSERT(GRPC_CALL_OK ==
              grpc_call_server_accept_old(s, f.server_cq, tag(102)));
diff --git a/test/core/end2end/tests/ping_pong_streaming_legacy.c b/test/core/end2end/tests/ping_pong_streaming_legacy.c
index b2764e9f85..b4175b4d09 100644
--- a/test/core/end2end/tests/ping_pong_streaming_legacy.c
+++ b/test/core/end2end/tests/ping_pong_streaming_legacy.c
@@ -118,7 +118,7 @@ static void test_pingpong_streaming(grpc_end2end_test_config config,
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
   gpr_log(GPR_INFO, "testing with %d message pairs.", messages);
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -127,7 +127,7 @@ static void test_pingpong_streaming(grpc_end2end_test_config config,
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/request_response_with_binary_metadata_and_payload.c b/test/core/end2end/tests/request_response_with_binary_metadata_and_payload.c
index 843e9db9ed..45b2ea3e82 100644
--- a/test/core/end2end/tests/request_response_with_binary_metadata_and_payload.c
+++ b/test/core/end2end/tests/request_response_with_binary_metadata_and_payload.c
@@ -140,7 +140,7 @@ static void test_request_response_with_metadata_and_payload(
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -210,7 +210,7 @@ static void test_request_response_with_metadata_and_payload(
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
   GPR_ASSERT(byte_buffer_eq_string(request_payload_recv, "hello world"));
   GPR_ASSERT(byte_buffer_eq_string(response_payload_recv, "hello you"));
diff --git a/test/core/end2end/tests/request_response_with_binary_metadata_and_payload_legacy.c b/test/core/end2end/tests/request_response_with_binary_metadata_and_payload_legacy.c
index 9c09e516fa..be74e8bdce 100644
--- a/test/core/end2end/tests/request_response_with_binary_metadata_and_payload_legacy.c
+++ b/test/core/end2end/tests/request_response_with_binary_metadata_and_payload_legacy.c
@@ -137,7 +137,7 @@ static void test_request_response_with_metadata_and_payload(
   gpr_slice_unref(request_payload_slice);
   gpr_slice_unref(response_payload_slice);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -157,7 +157,7 @@ static void test_request_response_with_metadata_and_payload(
   cq_verify(v_client);
 
   cq_expect_server_rpc_new(
-      v_server, &s, tag(100), "/foo", "foo.test.google.com", deadline, "key1-bin",
+      v_server, &s, tag(100), "/foo", "foo.test.google.fr", deadline, "key1-bin",
       "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc", "key2-bin",
       "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d", NULL);
   cq_verify(v_server);
diff --git a/test/core/end2end/tests/request_response_with_metadata_and_payload.c b/test/core/end2end/tests/request_response_with_metadata_and_payload.c
index 7f7b594d80..1675a9e537 100644
--- a/test/core/end2end/tests/request_response_with_metadata_and_payload.c
+++ b/test/core/end2end/tests/request_response_with_metadata_and_payload.c
@@ -133,7 +133,7 @@ static void test_request_response_with_metadata_and_payload(
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -203,7 +203,7 @@ static void test_request_response_with_metadata_and_payload(
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
   GPR_ASSERT(byte_buffer_eq_string(request_payload_recv, "hello world"));
   GPR_ASSERT(byte_buffer_eq_string(response_payload_recv, "hello you"));
diff --git a/test/core/end2end/tests/request_response_with_metadata_and_payload_legacy.c b/test/core/end2end/tests/request_response_with_metadata_and_payload_legacy.c
index ba330d5f5f..5c0b9d5b12 100644
--- a/test/core/end2end/tests/request_response_with_metadata_and_payload_legacy.c
+++ b/test/core/end2end/tests/request_response_with_metadata_and_payload_legacy.c
@@ -128,7 +128,7 @@ static void test_request_response_with_metadata_and_payload(
   gpr_slice_unref(request_payload_slice);
   gpr_slice_unref(response_payload_slice);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -147,7 +147,7 @@ static void test_request_response_with_metadata_and_payload(
   cq_expect_write_accepted(v_client, tag(4), GRPC_OP_OK);
   cq_verify(v_client);
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, "key1", "val1", "key2", "val2", NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/request_response_with_payload.c b/test/core/end2end/tests/request_response_with_payload.c
index a0dc0331f4..16f07c7107 100644
--- a/test/core/end2end/tests/request_response_with_payload.c
+++ b/test/core/end2end/tests/request_response_with_payload.c
@@ -128,7 +128,7 @@ static void request_response_with_payload(grpc_end2end_test_fixture f) {
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -196,7 +196,7 @@ static void request_response_with_payload(grpc_end2end_test_fixture f) {
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
   GPR_ASSERT(byte_buffer_eq_string(request_payload_recv, "hello world"));
   GPR_ASSERT(byte_buffer_eq_string(response_payload_recv, "hello you"));
diff --git a/test/core/end2end/tests/request_response_with_payload_legacy.c b/test/core/end2end/tests/request_response_with_payload_legacy.c
index be56274899..37ce89b29a 100644
--- a/test/core/end2end/tests/request_response_with_payload_legacy.c
+++ b/test/core/end2end/tests/request_response_with_payload_legacy.c
@@ -121,7 +121,7 @@ static void request_response_with_payload(grpc_end2end_test_fixture f) {
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -136,7 +136,7 @@ static void request_response_with_payload(grpc_end2end_test_fixture f) {
   cq_expect_write_accepted(v_client, tag(4), GRPC_OP_OK);
   cq_verify(v_client);
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload.c b/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload.c
index bf3b19b62d..fa0d313f49 100644
--- a/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload.c
+++ b/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload.c
@@ -134,7 +134,7 @@ static void test_request_response_with_metadata_and_payload(
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -205,7 +205,7 @@ static void test_request_response_with_metadata_and_payload(
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 1);
   GPR_ASSERT(byte_buffer_eq_string(request_payload_recv, "hello world"));
   GPR_ASSERT(byte_buffer_eq_string(response_payload_recv, "hello you"));
diff --git a/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload_legacy.c b/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload_legacy.c
index 0ed0f985ec..5bce89a3fa 100644
--- a/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload_legacy.c
+++ b/test/core/end2end/tests/request_response_with_trailing_metadata_and_payload_legacy.c
@@ -130,7 +130,7 @@ static void test_request_response_with_metadata_and_payload(
   gpr_slice_unref(request_payload_slice);
   gpr_slice_unref(response_payload_slice);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -149,7 +149,7 @@ static void test_request_response_with_metadata_and_payload(
   cq_expect_write_accepted(v_client, tag(4), GRPC_OP_OK);
   cq_verify(v_client);
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, "key1", "val1", "key2", "val2", NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/request_with_large_metadata.c b/test/core/end2end/tests/request_with_large_metadata.c
index 7534104018..7908493565 100644
--- a/test/core/end2end/tests/request_with_large_metadata.c
+++ b/test/core/end2end/tests/request_with_large_metadata.c
@@ -128,7 +128,7 @@ static void test_request_with_large_metadata(grpc_end2end_test_config config) {
   const int large_size = 64 * 1024;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   meta.key = "key";
@@ -197,7 +197,7 @@ static void test_request_with_large_metadata(grpc_end2end_test_config config) {
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
   GPR_ASSERT(byte_buffer_eq_string(request_payload_recv, "hello world"));
   GPR_ASSERT(contains_metadata(&request_metadata_recv, "key", meta.value));
diff --git a/test/core/end2end/tests/request_with_large_metadata_legacy.c b/test/core/end2end/tests/request_with_large_metadata_legacy.c
index bc3b380013..85926aac14 100644
--- a/test/core/end2end/tests/request_with_large_metadata_legacy.c
+++ b/test/core/end2end/tests/request_with_large_metadata_legacy.c
@@ -121,7 +121,7 @@ static void test_request_with_large_metadata(grpc_end2end_test_config config) {
   ((char*)meta.value)[large_size] = 0;
   meta.value_length = large_size;
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -131,7 +131,7 @@ static void test_request_with_large_metadata(grpc_end2end_test_config config) {
   GPR_ASSERT(GRPC_CALL_OK ==
              grpc_call_invoke_old(c, f.client_cq, tag(2), tag(3), 0));
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, "key", meta.value, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/request_with_payload.c b/test/core/end2end/tests/request_with_payload.c
index bb13512ad4..72614a0bf8 100644
--- a/test/core/end2end/tests/request_with_payload.c
+++ b/test/core/end2end/tests/request_with_payload.c
@@ -126,7 +126,7 @@ static void test_invoke_request_with_payload(grpc_end2end_test_config config) {
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -188,7 +188,7 @@ static void test_invoke_request_with_payload(grpc_end2end_test_config config) {
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
   GPR_ASSERT(byte_buffer_eq_string(request_payload_recv, "hello world"));
 
diff --git a/test/core/end2end/tests/request_with_payload_legacy.c b/test/core/end2end/tests/request_with_payload_legacy.c
index b56e08cf1f..b71e682b9d 100644
--- a/test/core/end2end/tests/request_with_payload_legacy.c
+++ b/test/core/end2end/tests/request_with_payload_legacy.c
@@ -116,7 +116,7 @@ static void test_invoke_request_with_payload(grpc_end2end_test_config config) {
   /* byte buffer holds the slice, we can unref it already */
   gpr_slice_unref(payload_slice);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -132,7 +132,7 @@ static void test_invoke_request_with_payload(grpc_end2end_test_config config) {
   cq_expect_write_accepted(v_client, tag(4), GRPC_OP_OK);
   cq_verify(v_client);
 
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/simple_delayed_request.c b/test/core/end2end/tests/simple_delayed_request.c
index 0a3eb7c7b7..83b065b59e 100644
--- a/test/core/end2end/tests/simple_delayed_request.c
+++ b/test/core/end2end/tests/simple_delayed_request.c
@@ -114,7 +114,7 @@ static void simple_delayed_request_body(grpc_end2end_test_config config,
   config.init_client(f, client_args);
 
   c = grpc_channel_create_call(f->client, f->client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -172,7 +172,7 @@ static void simple_delayed_request_body(grpc_end2end_test_config config,
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
 
   gpr_free(details);
diff --git a/test/core/end2end/tests/simple_delayed_request_legacy.c b/test/core/end2end/tests/simple_delayed_request_legacy.c
index 3c94de548e..325261449a 100644
--- a/test/core/end2end/tests/simple_delayed_request_legacy.c
+++ b/test/core/end2end/tests/simple_delayed_request_legacy.c
@@ -103,7 +103,7 @@ static void simple_delayed_request_body(grpc_end2end_test_config config,
 
   config.init_client(f, client_args);
 
-  c = grpc_channel_create_call_old(f->client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f->client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -119,7 +119,7 @@ static void simple_delayed_request_body(grpc_end2end_test_config config,
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f->server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/simple_request.c b/test/core/end2end/tests/simple_request.c
index 591bc52dc5..dac82535be 100644
--- a/test/core/end2end/tests/simple_request.c
+++ b/test/core/end2end/tests/simple_request.c
@@ -122,7 +122,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   int was_cancelled = 2;
 
   c = grpc_channel_create_call(f.client, f.client_cq, "/foo",
-                               "foo.test.google.com", deadline);
+                               "foo.test.google.fr", deadline);
   GPR_ASSERT(c);
 
   grpc_metadata_array_init(&initial_metadata_recv);
@@ -178,7 +178,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
   GPR_ASSERT(0 == strcmp(details, "xyz"));
   GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
-  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.com"));
+  GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
   GPR_ASSERT(was_cancelled == 0);
 
   gpr_free(details);
diff --git a/test/core/end2end/tests/simple_request_legacy.c b/test/core/end2end/tests/simple_request_legacy.c
index 2e30d101e1..52dd6b0845 100644
--- a/test/core/end2end/tests/simple_request_legacy.c
+++ b/test/core/end2end/tests/simple_request_legacy.c
@@ -110,7 +110,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -122,7 +122,7 @@ static void simple_request_body(grpc_end2end_test_fixture f) {
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
@@ -157,7 +157,7 @@ static void simple_request_body2(grpc_end2end_test_fixture f) {
   cq_verifier *v_client = cq_verifier_create(f.client_cq);
   cq_verifier *v_server = cq_verifier_create(f.server_cq);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -169,7 +169,7 @@ static void simple_request_body2(grpc_end2end_test_fixture f) {
   cq_verify(v_client);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
-  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.com",
+  cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "foo.test.google.fr",
                            deadline, NULL);
   cq_verify(v_server);
 
diff --git a/test/core/end2end/tests/thread_stress.c b/test/core/end2end/tests/thread_stress.c
index c10b373744..996229c228 100644
--- a/test/core/end2end/tests/thread_stress.c
+++ b/test/core/end2end/tests/thread_stress.c
@@ -109,7 +109,7 @@ static void start_request(void) {
   gpr_slice slice = gpr_slice_malloc(100);
   grpc_byte_buffer *buf;
   grpc_call *call = grpc_channel_create_call_old(
-      g_fixture.client, "/Foo", "foo.test.google.com", g_test_end_time);
+      g_fixture.client, "/Foo", "foo.test.google.fr", g_test_end_time);
 
   memset(GPR_SLICE_START_PTR(slice), 1, GPR_SLICE_LENGTH(slice));
   buf = grpc_byte_buffer_create(&slice, 1);
diff --git a/test/core/end2end/tests/thread_stress_legacy.c b/test/core/end2end/tests/thread_stress_legacy.c
index c10b373744..996229c228 100644
--- a/test/core/end2end/tests/thread_stress_legacy.c
+++ b/test/core/end2end/tests/thread_stress_legacy.c
@@ -109,7 +109,7 @@ static void start_request(void) {
   gpr_slice slice = gpr_slice_malloc(100);
   grpc_byte_buffer *buf;
   grpc_call *call = grpc_channel_create_call_old(
-      g_fixture.client, "/Foo", "foo.test.google.com", g_test_end_time);
+      g_fixture.client, "/Foo", "foo.test.google.fr", g_test_end_time);
 
   memset(GPR_SLICE_START_PTR(slice), 1, GPR_SLICE_LENGTH(slice));
   buf = grpc_byte_buffer_create(&slice, 1);
diff --git a/test/core/end2end/tests/writes_done_hangs_with_pending_read.c b/test/core/end2end/tests/writes_done_hangs_with_pending_read.c
index 5f8b9974d6..0189762b5e 100644
--- a/test/core/end2end/tests/writes_done_hangs_with_pending_read.c
+++ b/test/core/end2end/tests/writes_done_hangs_with_pending_read.c
@@ -124,7 +124,7 @@ static void test_writes_done_hangs_with_pending_read(
   gpr_slice_unref(request_payload_slice);
   gpr_slice_unref(response_payload_slice);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -141,7 +141,7 @@ static void test_writes_done_hangs_with_pending_read(
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/core/end2end/tests/writes_done_hangs_with_pending_read_legacy.c b/test/core/end2end/tests/writes_done_hangs_with_pending_read_legacy.c
index 5f8b9974d6..0189762b5e 100644
--- a/test/core/end2end/tests/writes_done_hangs_with_pending_read_legacy.c
+++ b/test/core/end2end/tests/writes_done_hangs_with_pending_read_legacy.c
@@ -124,7 +124,7 @@ static void test_writes_done_hangs_with_pending_read(
   gpr_slice_unref(request_payload_slice);
   gpr_slice_unref(response_payload_slice);
 
-  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.com",
+  c = grpc_channel_create_call_old(f.client, "/foo", "foo.test.google.fr",
                                    deadline);
   GPR_ASSERT(c);
 
@@ -141,7 +141,7 @@ static void test_writes_done_hangs_with_pending_read(
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
   cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo",
-                           "foo.test.google.com", deadline, NULL);
+                           "foo.test.google.fr", deadline, NULL);
   cq_verify(v_server);
 
   GPR_ASSERT(GRPC_CALL_OK ==
diff --git a/test/cpp/interop/client.cc b/test/cpp/interop/client.cc
index 78f2063c45..acfaa87ec8 100644
--- a/test/cpp/interop/client.cc
+++ b/test/cpp/interop/client.cc
@@ -57,7 +57,7 @@ DEFINE_bool(enable_ssl, false, "Whether to use ssl/tls.");
 DEFINE_bool(use_prod_roots, false, "True to use SSL roots for google");
 DEFINE_int32(server_port, 0, "Server port.");
 DEFINE_string(server_host, "127.0.0.1", "Server host to connect to");
-DEFINE_string(server_host_override, "foo.test.google.com",
+DEFINE_string(server_host_override, "foo.test.google.fr",
               "Override the server host which is sent in HTTP header");
 DEFINE_string(test_case, "large_unary",
               "Configure different test cases. Valid options are: "
diff --git a/test/cpp/util/create_test_channel.cc b/test/cpp/util/create_test_channel.cc
index 66a9a7b7c4..99b3c2ecd4 100644
--- a/test/cpp/util/create_test_channel.cc
+++ b/test/cpp/util/create_test_channel.cc
@@ -93,7 +93,7 @@ std::shared_ptr<ChannelInterface> CreateTestChannel(
 // Shortcut for end2end and interop tests.
 std::shared_ptr<ChannelInterface> CreateTestChannel(const grpc::string& server,
                                                     bool enable_ssl) {
-  return CreateTestChannel(server, "foo.test.google.com", enable_ssl, false);
+  return CreateTestChannel(server, "foo.test.google.fr", enable_ssl, false);
 }
 
 }  // namespace grpc
-- 
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