A private certificate authority is an operational commitment, not just a way to mint TLS files. step-ca can issue X.509 and SSH certificates; test the complete lifecycle before any service depends on it.
Set up a disposable root and intermediate. Issue a short-lived certificate for a test service, configure automatic renewal, and confirm the client trusts the intended chain. Then deliberately stop the CA, expire a test certificate, and document recovery. Protect signing keys and back up configuration and database separately. The step-ca overview describes provisioners and supported enrollment paths.
Compare alternatives on issuance policy, audit needs, revocation expectations, and integration with your actual clients. Plan how root trust is distributed and rotated. A successful first issuance means little unless renewal, key protection, and disaster recovery are proven.
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