Compare ACME challenge types and validate certificate issuance against staging endpoints.
npx skills add https://github.com/MysticRyuujin/spirens --skill tls-acme
Please help me install this Agent Skill. Skill: tls-acme Source: https://github.com/MysticRyuujin/spirens/tree/main/tls-acme Command: npx skills add https://github.com/MysticRyuujin/spirens --skill tls-acme
ACME protocols simplify automated certificate issuance by selecting the appropriate challenge type (DNS-01, HTTP-01, TLS-ALPN-01) and guiding secure TLS setup for new hostnames and wildcards, while highlighting rate limits and staging endpoints.
Begin by using the staging ACME endpoint to issue a test certificate with DNS-01 for a sample wildcard hostname and observe the validation flow.
High-intent search queries and answers about installing and using this skill.
ACME challenges differ by validation method: DNS-01 verifies wildcard domains via TXT records, HTTP-01 validates public web servers over port 80, and TLS-ALPN-01 validates over port 443, making each suited to different reachability and deployment constraints.
You need DNS-01 instead of HTTP-01 when issuing wildcard certificates or when validating hostnames on private networks like LAN or VPN, where public HTTP endpoints are unreachable by the ACME CA for verification.
Test ACME certificate issuance safely by using the staging ACME endpoint. This allows you to validate the challenge flow and observe issuance behavior for new hostnames without encountering strict production rate limits.
TLS-ALPN-01 does not support wildcard certificates; it validates single hostnames over port 443. For wildcard certificates across a VPN or LAN, you must use the DNS-01 challenge instead.
HTTP-01 limitations include requiring port 80 to be publicly reachable and an inability to issue wildcard certificates. It is unsuitable for internal LAN or VPN hostnames where the CA cannot reach the HTTP endpoint.
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