Package: ssh Version: 2.2.0p1-1.1 Severity: important /etc/ssh/sshd.conf has the line: ListenAddress 0.0.0.0 This avoids ssh listening on IPv6 addresses. If the admin want not to restrict ssh to IPv4 clients, there should not be any ListenAddress directive (using ::1 would break IPv4, having no ListenAddress directive sshd binds to ::1 if the host is IPv6-capable or 0.0.0.0 else) Thanks, HoraPe