[$] Dealing with automated SSH password-guessing

Just about everyone who runs a Unix server on the internet uses SSHfor remote access, and almost everyone who does that will be familiarwith the log footprints of automated password-guessing bots. Althoughdecently-secure passwords do much to harden a server against such attacks,the costs of dealing with the continual stream of failed logins can beconsiderable. There are ways to mitigate these costs.