DenyHosts is a python program that automatically blocks ssh attacks by adding entries to /etc/hosts.deny.
DenyHosts will also inform Linux administrators about offending hosts, attacked users and suspicious logins.
Thanks for the effective tool denyhosts. I'm using it for a long time at all my Servers. But after the last (debian-) update to ver 2.6-10 I get emails fom all successful logins with the content: Observed the following suspicious login activity: 10.xxx.yyy.zzz (fqdn) How can I switch off the mails of successful logins? ... or is this ok so? Thanks, Konrad