48. An administrator is installing an SSL certificate on a new system. During testing, errors indicate that the certificate is not trusted. The administrator has verified with the issuing CA and has validated the private key. Which of the following should the administrator check for next?
Answer: C
The administrator should check if the root certificate is installed.
To resolve the issue of the SSL certificate not being trusted, the next step is to verify whether the root certificate from the issuing Certificate Authority (CA) is installed on the system.
A) If the wildcard certificate is configured
Checking if the wildcard certificate is configured is not relevant in this scenario. The problem at hand is related to trust issues, which are not influenced by whether a wildcard certificate is present or properly configured.
B) If the certificate signing request is valid
Verifying the validity of the certificate signing request (CSR) is unnecessary at this point since the administrator has already confirmed that the private key is valid. The CSR is only relevant during the initial certificate issuance process.
C) If the root certificate is installed
This is the correct course of action, as the SSL certificate will not be trusted if the root certificate is missing from the system's trusted root certificate store. The presence of the root certificate is essential for establishing a chain of trust for the SSL certificate.
D) If the public key is configured
While the public key must be correctly configured for the SSL certificate to function, this has already been validated with the private key. Therefore, this option does not address the current trust issue being experienced by the administrator.
Conclusion
The administrator's next step should be to check if the root certificate is installed, as this is crucial for the SSL certificate to be recognized as trusted. All other options focus on different aspects of certificate management that do not directly resolve the trust issue currently faced. Properly installing the root certificate will establish the necessary trust chain for the SSL certificate to be accepted.