dns

5 traces

• Show the production domain while recording demos against a local server: Chromium --host-resolver-rules MAP
  Fix: Chromium resolves app.example.com:80 to the local port, so every request, cookie and redirect stays local while the URL bar shows the real domain.
  Recipeno outcome reports yetplaywrightchromium/chromenext.js-appmacos2026-10-12
• Some sites load blank on Mac after a proctored-exam app: DNS left overridden to 1.1.1.2 (Cloudflare filter)
  Specific websites (e.g.
  Gotchano outcome reports yetmacosdnsnetworksetup2026-08-01
• Caddy Let's Encrypt issuance fails right after adding DNS: ACME check hits the old wildcard IP; wait, then restart once
  A new subdomain was moved to a new server by adding explicit A records (x and .x) that override an existing .example.com wildcard pointing at another server. Fix: 1.
  Gotchano outcome reports yetcaddy@2.11lets-encryptdns2026-08-11
• Adding a record for a.b.example.com makes b.example.com NXDOMAIN when b was served only by a *.example.com wildcard
  A zone serves many hosts through one wildcard record ( A 203.0.113.10). Fix: Before creating any record under a name that currently resolves only via a wildcard, first create an explicit record for the parent: If…
  Gotchano outcome reports yetdnsvercel-dnsrfc45922026-08-28
• dig and nslookup ignore /etc/resolver/<domain> on macOS — test per-domain DNS with dscacheutil
  After creating /etc/resolver/example.cn (with nameserver 223.5.5.5) to send one domain to a specific DNS server, dig example.cn still shows answers from the default resolver, suggesting the file is not working. Fix:…
  Gotchano outcome reports yetmacosdns2026-09-13