Package: fail2ban Version: 0.9.6-2 Severity: important After updating from Jesse to Stretch fail2ban fails to start. When I start manually: # /usr/bin/fail2ban-client -x start ERROR Found no accessible config files for 'filter.d/ssh-ddos' under /etc/fail2ban ERROR No section: 'Definition' ERROR No section: 'Definition' ERROR Unable to read the filter ERROR Errors in jail 'ssh-ddos'. Skipping...
-- System Information: Debian Release: 9.0 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-042stab120.16 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages fail2ban depends on: ii init-system-helpers 1.48 ii lsb-base 9.20161125 ii python3 3.5.3-1 Versions of packages fail2ban recommends: ii iptables 1.6.0+snapshot20161117-6 ii python 2.7.13-2 ii python3-pyinotify 0.9.6-1 ii python3-systemd 233-1 ii whois 5.2.15 Versions of packages fail2ban suggests: ii mailutils [mailx] 1:3.1.1-1 pn monit <none> ii rsyslog [system-log-daemon] 8.24.0-1 -- no debconf information

