# medusa > A modular and parallel login brute-forcer for a variety of protocols. > More information: . - List all installed modules: `medusa -d` - Show usage example of a specific module (use `medusa -d` for listing all installed modules): `medusa -M {{ssh|http|web-form|postgres|ftp|mysql|...}} -q` - Execute brute force against an FTP server using a file containing usernames and a file containing passwords: `medusa -M ftp -h host -U {{path/to/username_file}} -P {{path/to/password_file}}` - Execute a login attempt against an HTTP server using the username, password and user-agent specified: `medusa -M HTTP -h host -u {{username}} -p {{password}} -m USER-AGENT:"{{Agent}}"` - Execute a brute force against a MySQL server using a file containing usernames and a hash: `medusa -M mysql -h host -U {{path/to/username_file}} -p {{hash}} -m PASS:HASH` - Execute a brute force against a list of SMB servers using a username and a pwdump file: `medusa -M smbnt -H {{path/to/hosts_file}} -C {{path/to/pwdump_file}} -u {{username}} -m PASS:HASH`