diff --git a/gso/oss-params-example.json b/gso/oss-params-example.json
index 74d81cc9ddf2276ada1968af0f6146627fb5084d..51702b5963ec89b763a87022ea9a8d3aeb6f4a93 100644
--- a/gso/oss-params-example.json
+++ b/gso/oss-params-example.json
@@ -16,37 +16,37 @@
       "password": "robot-user-password"
     },
     "LO": {
-      "V4": {"containers": [], "networks": ["1.1.0.0/24"], "mask": 0},
-      "V6": {"containers": [], "networks": ["dead:beef::/64"], "mask": 0},
-      "domain_name": ".lo",
+      "V4": {"containers": [], "networks": ["10.255.255.0/26"], "mask": 32},
+      "V6": {"containers": [], "networks": ["dead:beef::/80"], "mask": 128},
+      "domain_name": ".geant.net",
       "dns_view": "default",
       "network_view": "default"
     },
     "TRUNK": {
-      "V4": {"containers": ["1.1.1.0/24"], "networks": [], "mask": 31},
-      "V6": {"containers": ["dead:beef::/64"], "networks": [], "mask": 126},
+      "V4": {"containers": ["10.255.255.0/24", "10.255.254.0/24"], "networks": [], "mask": 31},
+      "V6": {"containers": ["dead:beef::/64", "dead:beee::/64"], "networks": [], "mask": 126},
       "domain_name": ".trunk",
       "dns_view": "default",
       "network_view": "default"
     },
     "GEANT_IP": {
-      "V4": {"containers": ["1.1.2.0/24"], "networks": [], "mask": 31},
-      "V6": {"containers": ["dead:beef::/64"], "networks": [], "mask": 126},
+      "V4": {"containers": ["10.255.255.0/24", "10.255.254.0/24"], "networks": [], "mask": 31},
+      "V6": {"containers": ["dead:beef::/64", "dead:beee::/64"], "networks": [], "mask": 126},
       "domain_name": ".geantip",
       "dns_view": "default",
       "network_view": "default"
     },
     "SI": {
-      "V4": {"containers": ["1.1.3.0/24"], "networks": [], "mask": 31},
-      "V6": {"containers": ["dead:beef::/64"], "networks": [], "mask": 126},
-      "domain_name": ".si",
+      "V4": {"containers": ["10.255.253.128/25"], "networks": [], "mask": 31},
+      "V6": {"containers": [], "networks": [], "mask": 126},
+      "domain_name": ".geantip",
       "dns_view": "default",
       "network_view": "default"
     },
     "LT_IAS": {
-      "V4": {"containers": ["1.1.4.0/24"], "networks": [], "mask": 31},
-      "V6": {"containers": ["dead:beef::/64"], "networks": [], "mask": 126},
-      "domain_name": ".ltias",
+      "V4": {"containers": ["10.255.255.0/24"], "networks": [], "mask": 31},
+      "V6": {"containers": ["dead:beef:cc::/48"], "networks": [], "mask": 126},
+      "domain_name": ".geantip",
       "dns_view": "default",
       "network_view": "default"
     }
diff --git a/test/api/test_subscriptions.py b/test/api/test_subscriptions.py
index b4bad4e091301ccd644a417f9cf7391779d1d32a..37c74cd83bb24dfa32f338235983fb77ee7feee7 100644
--- a/test/api/test_subscriptions.py
+++ b/test/api/test_subscriptions.py
@@ -11,7 +11,7 @@ def test_router_subscriptions_endpoint_with_valid_api_key(test_client, nokia_rou
     nokia_router_subscription_factory(status=SubscriptionLifecycle.INITIAL)
 
     response = test_client.get(
-        ROUTER_SUBSCRIPTION_ENDPOINT, headers={"Authorization": "Bearer REALY_random_AND_3cure_T0keN"}
+        ROUTER_SUBSCRIPTION_ENDPOINT, headers={"Authorization": "Bearer another_REALY_random_AND_3cure_T0keN"}
     )
 
     assert response.status_code == 200
diff --git a/test/conftest.py b/test/conftest.py
index bc5dd61b0cddbf4c9652d1d6f41fdab34801a1ed..ed7459f9f4ec2386f75f85631837b085fdf0f537 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -1,9 +1,6 @@
 import contextlib
-import json
 import logging
 import os
-import socket
-import tempfile
 from pathlib import Path
 
 import orchestrator
@@ -91,149 +88,14 @@ def faker() -> Faker:
     return fake
 
 
-@pytest.fixture(scope="session")
-def configuration_data() -> dict:
-    with contextlib.closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
-        s.bind(("", 0))
-        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-        yield {
-            "GENERAL": {"public_hostname": "https://orchestrator.dev.gap.geant.org", "isis_high_metric": 999999},
-            "NETBOX": {"api": "https://127.0.0.1:8000", "token": "TOKEN"},
-            "IPAM": {
-                "INFOBLOX": {
-                    "scheme": "https",
-                    "wapi_version": "2.12",
-                    "host": "10.0.0.1",
-                    "username": "robot-user",
-                    "password": "robot-user-password",
-                },
-                "LO": {
-                    "V4": {
-                        "containers": [],
-                        "networks": ["10.255.255.0/26"],
-                        "mask": 32,
-                    },
-                    "V6": {
-                        "containers": [],
-                        "networks": ["dead:beef::/80"],
-                        "mask": 128,
-                    },
-                    "domain_name": ".geant.net",
-                    "dns_view": "default",
-                    "network_view": "default",
-                },
-                "TRUNK": {
-                    "V4": {
-                        "containers": ["10.255.255.0/24", "10.255.254.0/24"],
-                        "networks": [],
-                        "mask": 31,
-                    },
-                    "V6": {
-                        "containers": ["dead:beef::/64", "dead:beee::/64"],
-                        "networks": [],
-                        "mask": 126,
-                    },
-                    "domain_name": ".trunk",
-                    "dns_view": "default",
-                    "network_view": "default",
-                },
-                "GEANT_IP": {
-                    "V4": {
-                        "containers": ["10.255.255.0/24", "10.255.254.0/24"],
-                        "networks": [],
-                        "mask": 31,
-                    },
-                    "V6": {
-                        "containers": ["dead:beef::/64", "dead:beee::/64"],
-                        "networks": [],
-                        "mask": 126,
-                    },
-                    "domain_name": ".geantip",
-                    "dns_view": "default",
-                    "network_view": "default",
-                },
-                "SI": {
-                    "V4": {
-                        "containers": ["10.255.253.128/25"],
-                        "networks": [],
-                        "mask": 31,
-                    },
-                    "V6": {"containers": [], "networks": [], "mask": 126},
-                    "domain_name": ".geantip",
-                    "dns_view": "default",
-                    "network_view": "default",
-                },
-                "LT_IAS": {
-                    "V4": {
-                        "containers": ["10.255.255.0/24"],
-                        "networks": [],
-                        "mask": 31,
-                    },
-                    "V6": {
-                        "containers": ["dead:beef:cc::/48"],
-                        "networks": [],
-                        "mask": 126,
-                    },
-                    "domain_name": ".geantip",
-                    "dns_view": "default",
-                    "network_view": "default",
-                },
-            },
-            "MONITORING": {
-                "LIBRENMS": {
-                    "base_url": "http://librenms",
-                    "token": "secret-token",
-                },
-                "SNMP": {
-                    "v2c": {
-                        "community": "fake-community",
-                    },
-                    "v3": {
-                        "authlevel": "AuthPriv",
-                        "authname": "librenms",
-                        "authpass": "<password1>",
-                        "authalgo": "sha",
-                        "cryptopass": "<password2>",
-                        "cryptoalgo": "aes",
-                    },
-                },
-            },
-            "PROVISIONING_PROXY": {
-                "scheme": "https",
-                "api_base": "localhost:44444",
-                "auth": "Bearer <token>",
-                "api_version": 1123,
-            },
-            "CELERY": {
-                "broker_url": "redis://localhost:6379",
-                "result_backend": "rpc://localhost:6379/0",
-                "result_expires": 3600,
-            },
-            "THIRD_PARTY_API_KEYS": {
-                "AnsibleDynamicInventoryGenerator": "REALY_random_AND_3cure_T0keN",
-                "Application_2": "another_REALY_random_AND_3cure_T0keN",
-            },
-            "EMAIL": {
-                "from_address": "noreply@nren.local",
-                "smtp_host": "smtp.nren.local",
-                "smtp_port": 487,
-                "starttls_enabled": True,
-                "smtp_username": "username",
-                "smtp_password": "password",
-            },
-        }
-
-
 @pytest.fixture(scope="session", autouse=True)
-def data_config_filename(configuration_data) -> str:
-    """Create a temporary file with configuration data and set an environment variable to its path."""
-    with tempfile.NamedTemporaryFile(mode="w+", delete=False) as f:
-        json.dump(configuration_data, f, ensure_ascii=False)
-        os.environ["OSS_PARAMS_FILENAME"] = f.name
+def data_config_filename() -> str:
+    """Set an environment variable to the path of the example OSS parameters file."""
+    config_filename = "gso/oss-params-example.json"
 
-    yield f.name
+    os.environ["OSS_PARAMS_FILENAME"] = config_filename
+    yield config_filename
     del os.environ["OSS_PARAMS_FILENAME"]
-    Path(f.name).unlink()
 
 
 @pytest.fixture(scope="session")