Type Default Option: -chainfile
string x3270 c3270 s3270 b3270

Gives the name of a certificate chain file to provided to the host during TLS negotiation. The file contains a PEM-format certificate, optionally followed by any intermediate certificates used to sign it, and the CA (root) certificate.

The private key for the certificate is specified by the keyFile resource. If the chainFile resource is specified, it overrides the certFile resource.

This resource only applies on platforms that use OpenSSL to implement TLS.