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Tech TIP: ibmvm_rest - (virtual) HMC with enhanced security: Could not generate DH keypair 

Mar 27, 2018 08:03 AM

ibmvm_rest 1.07 can be affected by connection failure along the error message:

javax.net.ssl.SSLException: java.lang.RuntimeException: Could not generate DH keypair

The trouble is that java7 can't handle public key longer than 1024bit along Diffie–Hellman key exchange (Cipher begins with DH).

HOWTO fix:

  1.  install java_jre 1.8 package on the probe's robot. 
  2. edit controller.cfg, locate <ibmvm_rest> and change command = <startup java> to command = <startup java 1.8> 
  3. restart ibmvm_rest probe

case 00994306 

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Mar 27, 2018 08:40 AM

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