# 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 --port {{port_number}}` - Run the web server on a specified IP address: `rails server --binding {{ip_address}}` - Run the web server on a specified environment: `rails server --environment {{environment}}` - Display help: `rails server --help`