diff --git a/openvidu-server/docker/openvidu-docker-compose/readme.md b/openvidu-server/docker/openvidu-docker-compose/readme.md
index e55d4c88..f3478ad8 100644
--- a/openvidu-server/docker/openvidu-docker-compose/readme.md
+++ b/openvidu-server/docker/openvidu-docker-compose/readme.md
@@ -65,7 +65,7 @@ All other config properties have sane defaults.
 OPENVIDU_SECRET=
 
 # Domain name. If you do not have one, the public IP of the machine.
-DOMAIN_OR_PUBLIC_IP=
+OPENVIDU_DOMAIN_OR_PUBLIC_IP=
 
 # Openvidu Folder Record used for save the openvidu recording videos. Change it 
 # with the folder you want to use from your host.
@@ -87,6 +87,10 @@ CERTIFICATE_TYPE=selfsigned
 LETSENCRYPT_EMAIL=user@example.com
 ```
 
+> **NOTE:** If you want to try OpenVidu in local, take into account the following aspects:
+* If you set `OPENVIDU_DOMAIN_OR_PUBLIC_IP=localhost` then in your browser you have to use `https://localhost/`. If you use `127.0.0.1` instead, you will have some issues.
+* OpenVidu is dockerized, but it uses network_mode=host due to WebRTC needs. That is important to know because OpenVidu services will use some host ports that have to be available: 8888, 5443, 3478, 5442, 80 and 6379.
+
 ### Videoconference application
 
 By default, the [OpenVidu Call application](https://openvidu.io/docs/demos/openvidu-call/) is deployed alongside OpenVide CE platform. This application is defined in the file `docker-compose.override.yml`.