1. DNS/サービス/cloudflare

lame delegation 状態にすると乗取られる危険性があります。

DNS/Cloudflare

https://dash.cloudflare.com/password-reset パスワード変更

DNS/実装/cloudflare /Error1000

First steps into Cloudflare https://danielmuller.me/2012/12/first-steps-into-cloudflare/

https://support.cloudflare.com/hc/en-us/articles/360017421192-Cloudflare-DNS-FAQ#CloudflareDNSFAQ-DoesCloudflaresupportwildcardDNSentries

• Host DNS at Cloudflare

Does Cloudflare support wildcard DNS entries?

Cloudflare supports the wildcard '*' record for DNS management in all customer plans.

• Enterprise customers get full proxy support for wildcard records.

Free, Pro and Business plans

Cloudflare does not proxy wildcard records;

• therefore, wildcard subdomains are served directly without any Cloudflare performance, security, or apps. As a result, Wildcard domains get no cloud (orange or grey) in the Cloudflare DNS app.

If you are adding a * CNAME or A Record, you need to make sure the record is grey clouded in order for the record to be created.

1.1. subdomain

Understanding Subdomain Support https://support.cloudflare.com/hc/en-us/articles/360026440252-Understanding-Subdomain-Support

Subdomain Support is only available to Enterprise customers and is enabled by default.