majorwiki/05-troubleshooting/networking
Marcus Summers 11b455a0e2 Add runbook: Ansible host-key verification failed after host rebuild/migration
Documents the Ansible-by-IP known_hosts gap: interactive ssh works (key
stored under hostname) but Ansible connects by inventory IP and fails with
UNREACHABLE/Host key verification failed. Includes tailnet-safe ssh-keyscan
fix and prevention notes. Surfaced by the Hetzner migration IP churn.
2026-06-12 09:30:09 -04:00
..
ansible-host-key-verification-failed-rebuilt-host.md Add runbook: Ansible host-key verification failed after host rebuild/migration 2026-06-12 09:30:09 -04:00
dovecot-imap-oom-vsz-limit-bloated-index.md troubleshooting: document majormail client-connectivity incident (2026-06-05) 2026-06-05 14:04:22 -04:00
dovecot-mail-home-maildir-root-phantom-mailboxes.md troubleshooting: Dovecot phantom mailboxes from .dovecot.lda-dupes (mail_home overlapping maildir root) 2026-06-07 05:06:43 -04:00
fail2ban-imap-self-ban-mail-client.md troubleshooting: document majormail client-connectivity incident (2026-06-05) 2026-06-05 14:04:22 -04:00
fail2ban-self-ban-apache-outage.md wiki: audit fixes — broken links, wikilinks, frontmatter, stale content (66 files) 2026-04-02 11:16:29 -04:00
fail2ban-ufw-rule-bloat-cleanup.md wiki: audit fixes — broken links, wikilinks, frontmatter, stale content (66 files) 2026-04-02 11:16:29 -04:00
firewalld-mail-ports-reset.md troubleshooting: document majormail client-connectivity incident (2026-06-05) 2026-06-05 14:04:22 -04:00
pihole-blocks-claude-desktop.md docs: add Pi-hole AI blocklist / claude.ai ERR_CONNECTION_REFUSED article 2026-04-22 18:12:08 -04:00
postfix-header-checks-vs-milter-headers.md troubleshooting: Postfix header_checks can't act on milter-added headers 2026-06-06 10:38:04 -04:00
postfix-sendgrid-tls-handshake-failure.md wiki: batch update — 4 new articles + 4 updates 2026-05-25 13:55:10 -04:00
rsync-tailscale-teardown-stall.md wiki: add troubleshooting articles from MajorTwin v8 cycle 2026-04-25 12:57:39 -04:00
ssh-missing-host-block-magicdns-host-key-failure.md wiki: add MagicDNS-names-vs-pinned-IPs Tailscale SSH article 2026-06-12 01:33:31 -04:00
ssh-socket-tailscale-race-condition.md docs: point Ansible references at the new roles (clamav/ssh_hardening/tailscale) 2026-06-11 11:33:42 -04:00
tailscale-ssh-magicdns-vs-pinned-ip-after-migration.md wiki: add MagicDNS-names-vs-pinned-IPs Tailscale SSH article 2026-06-12 01:33:31 -04:00
tailscale-ssh-reauth-prompt.md wiki: audit fixes — broken links, wikilinks, frontmatter, stale content (66 files) 2026-04-02 11:16:29 -04:00
tailscale-status-json-hostname-localhost-ios.md wiki: update fail2ban digest + netdata docker health + 3 new articles 2026-05-02 14:58:07 -04:00
windows-openssh-wsl-default-shell-breaks-remote-commands.md wiki: update fail2ban digest + netdata docker health + 3 new articles 2026-05-02 14:58:07 -04:00
windows-sshd-stops-after-reboot.md wiki: update fail2ban digest + netdata docker health + 3 new articles 2026-05-02 14:58:07 -04:00