# dirbuster > Brute force directories and filenames on servers. > More information: . - Start in GUI mode: `dirbuster -u {{http://example.com}}` - Start in headless (no GUI) mode: `dirbuster -H -u {{http://example.com}}` - Set the file extension list: `dirbuster -e {{txt,html}}` - Enable verbose output: `dirbuster -v` - Set the report location: `dirbuster -r {{path/to/report.txt}}`