Is there an easy way to block an IP that runs a brutforce login attack on my sshd? Maybe just an increasing time for the login prompt to appear.
I know fail2ban, but that did hang when I tried it. Also it needs semdmail, which I don't want to setup on my desktop. And I don't want to send an email over the internet when there is something happening. If fail2ban could instead use desktop notifications (D-Bus) it would be great. But I wonder why I have to install something separate just for something like this? Why can't sshd do that? (Increase the wait time when the same IP has multiple failed login attempts.)