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16 lines
800 B
Plaintext
16 lines
800 B
Plaintext
// Module included in the following assemblies:
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//
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// * security/cert_manager_operator/cert-manager-operator-issuer-acme.adoc
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:_mod-docs-content-type: CONCEPT
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[id="cert-manager-acme-about_{context}"]
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= About ACME issuers
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[role="_abstract"]
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The ACME issuer type for the {cert-manager-operator} represents an Automated Certificate Management Environment (ACME) certificate authority (CA) server. ACME CA servers rely on a _challenge_ to verify that a client owns the domain names that the certificate is being requested for. If the challenge is successful, the {cert-manager-operator} can issue the certificate. If the challenge fails, the {cert-manager-operator} does not issue the certificate.
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[NOTE]
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====
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Private DNS zones are not supported with _Let’s Encrypt_ and internet ACME servers.
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====
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