DNS zone is on Yandex DNS (dns1/dns2.yandex.net), not reg.ru. Flip propagated
unevenly (dns2 first, dns1 lagged); cutover gate = BOTH authoritative Yandex NS
agree apex+www -> 89.253.255.94 (monitor waited for it) so LE HTTP-01 can't hit
RUVDS via a stale auth server and burn the rate-limit.
Stack 17 traefik-rule -> Host(labtools.ru)||Host(www.labtools.ru) via Portainer
PUT (env 8/8 preserved, pullImage=false). LE cert issued (~t+20s; brief self-signed
window during issuance). Live-smoke GREEN: both hosts 200 (nav+catalog+products),
redirects parity (trailing/lowercase/.php), sitemap index host=labtools.ru (this
tenant's siteUrl is non-www), theme assets byte-identical (RUVDS 301 apex->www made
the direct md5 an artifact; -L => MD5-OK). Staging host removed (->404). External:
apex->VDS 200; www still split-brain on RUVDS cache (200, identical content, TTL 6h).
RUVDS left intact as rollback.
Task closed. Whole batch done: labtools.ru + labtools.pro LIVE on VDS.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
vitya
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