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Update custom-dns.md #8399

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Jan 31, 2025
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Update custom-dns.md #8399

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Update custom-dns.md
josh-konghq Jan 31, 2025
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13 changes: 13 additions & 0 deletions app/konnect/gateway-manager/dedicated-cloud-gateways/custom-dns.md
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Expand Up @@ -37,3 +37,16 @@ title: Custom Domains for Dedicated Cloud Gateways
1. In {{site.konnect_short_name}}, open {% konnect_icon runtimes %} **Gateway Manager**, choose a control plane to open the **Overview** dashboard, then click **Custom Domains**.

2. Click the action menu on the end of the row you want to delete and click **Delete**.

## Custom domain attachment and CAA record troubleshooting

If your custom domain attachment fails, check if your domain has a Certificate Authority Authorization (CAA) record restricting certificate issuance. Dedicated Cloud Gateways uses a Google Cloud Public CA to provision SSL/TLS certificates. If your CAA record doesn't include the required CA, certificate issuance will fail.

You can resolve this issue by doing the following:

1. Check existing CAA records by running `dig CAA yourdomain.com +short`.
If a CAA record exists but doesn't allow GCP Public CA (`pki.goog`), update it.
2. Update the CAA record, if needed. For example: `yourdomain.com. CAA 0 issue "pki.goog"`
3. Wait for DNS propagation and retry attaching your domain.

If no CAA record exists, no changes are needed. For more information, see the [Let's Encrypt CAA Guide](https://letsencrypt.org/docs/caa/).