diff --git a/Dockerfile b/Dockerfile
index d52d4ef..5eaf71e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,6 +9,11 @@ ENV DOMAIN_NAME=false
 ENV USER_EMAIL=false
 ENV CONFIG=/etc/nginx/conf.d/OpenSpeedTest-Server.conf
 
+ENV CHANGE_CONTAINER_PORTS=false
+ENV HTTP_PORT=3000
+ENV HTTPS_PORT=3001
+ENV SET_USER=101
+
 COPY /files/OpenSpeedTest-Server.conf ${CONFIG}
 COPY /files/entrypoint.sh /entrypoint.sh
 COPY /files/renew.sh /renew.sh
@@ -62,11 +67,10 @@ RUN chown nginx:nginx /usr/sbin/crond \
 RUN touch /etc/crontabs/nginx
 RUN chown -R nginx:nginx /etc/crontabs/nginx
 
-USER 101
+USER ${SET_USER}
 
-EXPOSE 3000 3001
+EXPOSE ${HTTP_PORT} ${HTTPS_PORT}
 
 STOPSIGNAL SIGQUIT
 
-CMD ["/entrypoint.sh"]
-
+CMD ["/entrypoint.sh"]
\ No newline at end of file
diff --git a/README.md b/README.md
index b2f47c1..f041b18 100644
--- a/README.md
+++ b/README.md
@@ -118,3 +118,23 @@ services:
             - '3001:3001'
         image: openspeedtest/latest
 ````
+## Advanced Configuration Options 
+
+- Container Port Configuration
+  
+To enable port changes, set the `CHANGE_CONTAINER_PORTS` environment variable to `"True"` and provide appropriate values for the following variables.
+
+`CHANGE_CONTAINER_PORTS=True`
+
+`HTTP_PORT=3000`
+
+`HTTPS_PORT=3001`
+
+- Set User
+  
+`SET_USER=101`
+
+- Only Allow `CORS Request` from listed domains. 
+
+`ALLOW_ONLY=domain1.com;domain2.com;domain3.com`
+
diff --git a/files/OpenSpeedTest-Server.conf b/files/OpenSpeedTest-Server.conf
index 678b547..80ed4b4 100644
--- a/files/OpenSpeedTest-Server.conf
+++ b/files/OpenSpeedTest-Server.conf
@@ -17,10 +17,12 @@ server_name _ localhost YOURDOMAIN;
         # Nginx Server Windows SSL Performance was very poor! Better use Linux if you need SSL support.
         ssl_certificate  /etc/ssl/nginx.crt; # Use your own certificate & key
         ssl_certificate_key /etc/ssl/nginx.key; # <-- key
-        ssl_ciphers         EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH;
-        ssl_protocols       TLSv1.1 TLSv1.2;
-        ssl_session_cache   shared:SSL:10m;
-        ssl_session_timeout 10m;
+        ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
+	    ssl_ciphers "ALL";
+        ssl_prefer_server_ciphers on;
+	    ssl_session_cache shared:SSL:100m;
+	    ssl_session_timeout 1d;
+	    ssl_session_tickets on;
         root /usr/share/nginx/html/;
         index index.html;
         client_max_body_size 35m;
diff --git a/files/entrypoint.sh b/files/entrypoint.sh
index 12ea4e4..a5927ea 100644
--- a/files/entrypoint.sh
+++ b/files/entrypoint.sh
@@ -12,6 +12,30 @@ if [[ $? -ne 0 ]]; then
   sed -i '/listen 300/d' ${CONFIG}
 fi
 
+
+if [ "$CHANGE_CONTAINER_PORTS" = True ]; then
+    if [ "$HTTP_PORT" ]; then
+        sed -i "s/3000/${HTTP_PORT}/g" ${CONFIG}
+        if [ $? -eq 0 ]; then
+        echo "Changed HTTP container port to " ${HTTP_PORT}
+        else
+        echo "Failed to change HTTP container port to " ${HTTP_PORT}
+        fi        
+         
+    fi
+
+    if [ "$HTTPS_PORT" ]; then
+        sed -i "s/3001/${HTTPS_PORT}/g" ${CONFIG}
+        if [ $? -eq 0 ]; then
+        echo "Changed HTTPS container port to " ${HTTPS_PORT}
+        else
+        echo "Failed to change HTTPS container port to " ${HTTPS_PORT}
+        fi    
+
+    fi
+fi
+
+
 Verify_TXT_path="/usr/share/nginx/html/Verify.txt"
 
 if [ "$VERIFY_OWNERSHIP" ]; then