Follow this procedure to import a certificate and private key from an enterprise
CA.
If your enterprise has its own public key infrastructure
(PKI), you can import a certificate and private key into the firewall from your
enterprise certificate authority (CA). Enterprise CA certificates (unlike most
certificates purchased from a trusted, third-party CA) can automatically issue CA
certificates for applications such as SSL/TLS decryption or large-scale
VPN.
On a Palo Alto Networks firewall or Panorama, you can import
self-signed certificates only if they are CA certificates.
Instead of
importing a self-signed root CA certificate into all the client systems, it is a
best practice to import a certificate from the enterprise CA because the clients
will already have a trust relationship with the enterprise CA, which simplifies
the deployment.
If the certificate you will import is part of a
certificate chain, it is a best practice to import the entire chain.