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16 lines
891 B
Plaintext
16 lines
891 B
Plaintext
// Module included in the following assemblies:
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//
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// * microshift_troubleshooting/microshift-responsive-restarts-cas.adoc
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:_mod-docs-content-type: CONCEPT
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[id="microshift-certificate-lifetime_{context}"]
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= Security certificate lifetime
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[role="_abstract"]
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{microshift-short} certificates are digital certificates that secure communication with communication protocols such as HTTPS. They fall into two basic categories:
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Short-lived certificates:: Have a certificate validity of one year. Most server or leaf certificates are short-lived.
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Long-lived certificates:: Have a certificate validity of 10 years. An example of a long-lived certificate is the client certificate for `system:admin user` authentication, or the certificate of the signer of the `kube-apiserver` external serving certificate.
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{microshift-short} restarts automatically in certain cases, depending on certificate age.
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