alibabacloud-tls-cert-diagnosis
Installation
SKILL.md
TLS Certificate Diagnosis
Diagnose TLS/SSL certificate problems for a user-provided domain: certificate not trusted, hostname/SAN mismatch, expiration issues, and HTTPS access failures. The check flow resolves DNS, tests TCP connectivity, then verifies the certificate trust chain, hostname match, and validity period. When a check fails, a network pre-check and DNS diagnosis run automatically to pinpoint the root cause.
Module Index
| Module | Purpose | File |
|---|---|---|
| DNS Diagnosis | DNS status codes and diagnostic commands | references/dns_diagnosis.md |
| Prerequisites | System dependencies, OS compatibility, CA certificate setup | references/prerequisites.md |
| Output Schema | Formal JSON Schema for script output | references/output_schema.md |
Load references on demand. Do not read all reference files unless the task requires them.
User Confirmation
- Before running any check, confirm the target domain with the user.
- If the user has not provided a domain, ask for it first. Never guess, derive, or scan for domains on your own.
- If you obtain the domain from task context rather than directly from the user, state the domain and its source explicitly before running any check.