# rails server > Serve the Rails app in the current directory using the Puma web server, which comes bundled with Rails. > More information: . - Run the web server: `rails server` - Run the web server on a specified port: `rails server {{[-p|--port]}} {{port_number}}` - Run the web server on a specified IP address: `rails server {{[-b|--binding]}} {{ip_address}}` - Run the web server on a specified environment: `rails server {{[-e|--environment]}} {{environment}}` - Display help: `rails server {{[-h|--help]}}`