diff --git a/Dockerfile b/Dockerfile
index 399eb75..51da248 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,8 @@
 # syntax=docker/dockerfile:1
 FROM python:3.9
 WORKDIR /v6
+ENV v6host=0.0.0.0
+ENV v6port=5900
 ENV v6root=/v6data
 COPY requirements.txt requirements.txt
 RUN pip install -r requirements.txt
diff --git a/v6d0auth/config.py b/v6d0auth/config.py
index 1af0636..855ca51 100644
--- a/v6d0auth/config.py
+++ b/v6d0auth/config.py
@@ -10,5 +10,4 @@ myroot.mkdir(exist_ok=True)
 host = os.getenv('v6host', '127.0.0.1')
 port = int(os.getenv('v6port', '5003'))
 cakey = bytes.fromhex(os.getenv('v6ca', ''))
-# noinspection HttpUrlsUsage
-caurl = os.getenv('v6caurl', f'http://{host}:{port}')
+caurl = os.getenv('v6caurl', f'http://127.0.0.1:{port}')