I have the following instruction: Import ++++ certificate (in order to allow SSL connections) – it is done in Administrative Console for the corresponding WAS profile (Security->SSL certificate and key management->Key stores and certificates->NodeDefaultTrustStore->Signer certificates). Here you can simply add the attached trkd_cert.cer (“Add” button) or get it from port (“Retrieve from port” button, host: ++++.com, port 443)
But this is valid for Websphere 6.1. Do somebody know how this can be done in WebSphere 5.1?