TopicWindows Server →
Simple definition
Certificate Issuance and Renewal Automation Protocol.
Technical definition
The automation protocol for the issuance and renewal of certificates. In a professional environment, this mechanism usually integrates with other services to automatically renew certificates. TLS certificates, notably with the Le’s Encrypt.
What is it used for?
automatically renew TLS certificates, notably with Le’s Encrypt.
Practical example
A server proves control of a domain via a challenge and then receives a certificate.
Common issues
- expired certificate or name not covered
- incomplete confidence chain
- wrong key, revocation or automation of renewal
Key takeaway: Always adapt the diagnosis to the product version and the architecture actually deployed.