diff --git a/springEmployeeSystem/README.md b/springEmployeeSystem/README.md
index 0796d8daa..faecf93da 100644
--- a/springEmployeeSystem/README.md
+++ b/springEmployeeSystem/README.md
@@ -46,6 +46,26 @@ cd springEmployeeSystem/frontend/employee-system-ui
 npm run serve
 ```
 
+
+```bash
+#---------------------------
+# Run Nginx
+#---------------------------
+
+# start nginx service
+brew services start nginx
+
+# stop
+brew services stop nginx
+
+# macbook M1
+# /opt/homebrew/etc/nginx
+# /opt/homebrew/etc/nginx/nginx.conf 
+
+# reload config
+nginx -s reload
+```
+
 </details>
 
 ## API
diff --git a/springEmployeeSystem/backend/EmployeeSystem/nginx/nginx.conf b/springEmployeeSystem/backend/EmployeeSystem/nginx/nginx.conf
new file mode 100644
index 000000000..dde4dbf7a
--- /dev/null
+++ b/springEmployeeSystem/backend/EmployeeSystem/nginx/nginx.conf
@@ -0,0 +1,99 @@
+
+# https://youtu.be/CDaWk2RIBL4?si=dfe4B7Ct4fsPSOGW&t=315
+# https://github.com/yennanliu/utility_shell/blob/master/nginx/nginx_backup.conf
+
+#user  nobody;
+worker_processes  1;
+
+#error_log  logs/error.log;
+#error_log  logs/error.log  notice;
+#error_log  logs/error.log  info;
+
+#pid        logs/nginx.pid;
+
+
+events {
+  worker_connections  1024;
+}
+
+
+http {
+  include       mime.types;
+  default_type  application/octet-stream;
+
+  #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+  #                  '$status $body_bytes_sent "$http_referer" '
+  #                  '"$http_user_agent" "$http_x_forwarded_for"';
+
+  #access_log  logs/access.log  main;
+
+  sendfile        on;
+  #tcp_nopush     on;
+
+  #keepalive_timeout  0;
+  keepalive_timeout  65;
+
+  #gzip  on;
+
+  # load balance, reverse proxy
+  # https://youtu.be/CDaWk2RIBL4?si=k5piBHOSF-7vNTh1&t=392
+  upstream distributedLock {
+    server localhost:9998;
+    server localhost:9999;
+  }
+
+  server {
+    listen       8080;
+    server_name  localhost;
+
+    # update Nginx resend waiting time, to avoid Nginx send redundant requests due to server slow response
+    # https://youtu.be/_7VL1DUlq1Q?si=5WvAFE8xxvnyfilM&t=779
+    proxy_connect_timeout 12000; # 12 sec
+    proxy_send_timeout 12000;
+    proxy_read_timeout 12000;
+
+    location / {
+#       root   html;
+#       index  index.html index.htm;
+        proxy_pass http://distributedLock;
+    }
+
+  }
+
+
+  # another virtual host using mix of IP-, name-, and port-based configuration
+  #
+  #server {
+  #    listen       8000;
+  #    listen       somename:8080;
+  #    server_name  somename  alias  another.alias;
+
+  #    location / {
+  #        root   html;
+  #        index  index.html index.htm;
+  #    }
+  #}
+
+
+  # HTTPS server
+  #
+  #server {
+  #    listen       443 ssl;
+  #    server_name  localhost;
+
+  #    ssl_certificate      cert.pem;
+  #    ssl_certificate_key  cert.key;
+
+  #    ssl_session_cache    shared:SSL:1m;
+  #    ssl_session_timeout  5m;
+
+  #    ssl_ciphers  HIGH:!aNULL:!MD5;
+  #    ssl_prefer_server_ciphers  on;
+
+  #    location / {
+  #        root   html;
+  #        index  index.html index.htm;
+  #    }
+  #}
+  include servers/*;
+}
\ No newline at end of file
diff --git a/springEmployeeSystem/backend/EmployeeSystem/src/main/resources/application.properties b/springEmployeeSystem/backend/EmployeeSystem/src/main/resources/application.properties
index 0169ae9bf..ddc23b18f 100644
--- a/springEmployeeSystem/backend/EmployeeSystem/src/main/resources/application.properties
+++ b/springEmployeeSystem/backend/EmployeeSystem/src/main/resources/application.properties
@@ -9,7 +9,7 @@ spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
 logging.level.org.hibernate.SQL=debug
 spring.jpa.properties.hibernate.globally_quoted_identifiers=true
 
-server.port=9998
+server.port=9999
 
 # open all actuator endpoints(shutdown is not included) (DO MODIFY BELOW when DEPLOY TO PROD ENV)
 management.endpoints.web.exposure.include=*