Same evasion pattern already fixed for sshd recurred against dovecot: a
coordinated IMAP password spray paced just outside the 30-minute findtime
window ran unbanned for days. Widened dovecot's findtime the same way,
and updated SETUP.md so future provisioning applies this to every
credential jail up front instead of waiting for it to reappear.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Records the host's service inventory, setup runbook, mail account list,
sync plan, package diff vs. clean install, and hardening TODOs, including
today's SSH hardening (key-only, no root login) and the fail2ban sshd
findtime fix for a low-and-slow brute-force evasion pattern.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RdTyvEJkfNLDVAWt8WQ6X9
jensandClaude Sonnet 5