diff --git a/acme/src/acme/_internal/tests/conftest.py b/acme/src/acme/_internal/tests/conftest.py
new file mode 100644
index 000000000..6e929364d
--- /dev/null
+++ b/acme/src/acme/_internal/tests/conftest.py
@@ -0,0 +1,16 @@
+from unittest import mock
+
+import pytest
+
+# This avoids a bug on mac where getfqdn errors after a long timeout.
+# See https://bugs.python.org/issue35164
+# and discussion at https://github.com/certbot/certbot/pull/10408
+@pytest.fixture(autouse=True)
+def mock_getfqdn():
+    with mock.patch("socket.getfqdn", return_value="server_name") as mocked:
+        yield mocked
+
+@pytest.fixture(autouse=True)
+def mock_sleep():
+    with mock.patch("time.sleep") as mocked:
+        yield mocked
diff --git a/certbot/src/certbot/_internal/account.py b/certbot/src/certbot/_internal/account.py
index 548d2ae0b..f2b281f12 100644
--- a/certbot/src/certbot/_internal/account.py
+++ b/certbot/src/certbot/_internal/account.py
@@ -62,7 +62,7 @@ class Account:
         self.meta = self.Meta(
             # pyrfc3339 drops microseconds, make sure __eq__ is sane
             creation_dt=datetime.datetime.now(tz=datetime.timezone.utc).replace(microsecond=0),
-            creation_host=socket.getfqdn(),
+            creation_host=socket.gethostname(),
             register_to_eff=None) if meta is None else meta
 
         # try MD5, else use MD5 in non-security mode (e.g. for FIPS systems / RHEL)
diff --git a/certbot/src/certbot/_internal/tests/account_test.py b/certbot/src/certbot/_internal/tests/account_test.py
index c36b10969..f856779bb 100644
--- a/certbot/src/certbot/_internal/tests/account_test.py
+++ b/certbot/src/certbot/_internal/tests/account_test.py
@@ -31,7 +31,7 @@ class AccountTest(unittest.TestCase):
         self.regr.__repr__ = mock.MagicMock(return_value="i_am_a_regr")
 
         with mock.patch("certbot._internal.account.socket") as mock_socket:
-            mock_socket.getfqdn.return_value = "test.certbot.org"
+            mock_socket.gethostname.return_value = "test.certbot.org"
             with mock.patch("certbot._internal.account.datetime") as mock_dt:
                 mock_dt.datetime.now.return_value = self.meta.creation_dt
                 self.acc_no_meta = Account(self.regr, KEY)
diff --git a/certbot/src/certbot/_internal/tests/conftest.py b/certbot/src/certbot/_internal/tests/conftest.py
new file mode 100644
index 000000000..6e929364d
--- /dev/null
+++ b/certbot/src/certbot/_internal/tests/conftest.py
@@ -0,0 +1,16 @@
+from unittest import mock
+
+import pytest
+
+# This avoids a bug on mac where getfqdn errors after a long timeout.
+# See https://bugs.python.org/issue35164
+# and discussion at https://github.com/certbot/certbot/pull/10408
+@pytest.fixture(autouse=True)
+def mock_getfqdn():
+    with mock.patch("socket.getfqdn", return_value="server_name") as mocked:
+        yield mocked
+
+@pytest.fixture(autouse=True)
+def mock_sleep():
+    with mock.patch("time.sleep") as mocked:
+        yield mocked