diff --git a/.env.example b/.env.example
deleted file mode 100644
index f578e77..0000000
--- a/.env.example
+++ /dev/null
@@ -1,3 +0,0 @@
-# Documentation only (network_mode: host reads the listen port from nginx.conf).
-ERROR_PAGE_BIND=127.0.0.1
-ERROR_PAGE_PORT=4098
diff --git a/README.md b/README.md
index c41cf2f..4b24623 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,8 @@ cd /volume1/09_container_manager/14_error-page
 docker compose up -d
 ```
 
+별도 `.env`는 필요하지 않습니다. 이 서비스에는 비밀값이 없고, 수신 주소와 포트는 `nginx.conf`에서 `127.0.0.1:4098`로 고정합니다.
+
 확인:
 
 ```bash
diff --git a/upstreams.map b/upstreams.map
index 18750dc..458f4c3 100644
--- a/upstreams.map
+++ b/upstreams.map
@@ -11,8 +11,8 @@ map $host $app_port {
     www.takits.me          4889;
 
     fas.takits.me          4885;
-    ops.fas.takits.me      4887;
+    android-fas.takits.me  6080;
 
-    # dev-fas.takits.me     80xx;
-    # android-fas.takits.me 6080;
+    # ops.fas.takits.me     4887;
+    # dev-fas.takits.me     4886;
 }