KeyExchange algorithm negotiation failed to access RHEL8 ssh server with FIPS:OSPP crypto policy enabled

Solution Unverified - Updated -

Issue

  • The ssh login failed from RHEL6 client to RHEL8 ssh server with the following error.
Unable to negotiate a key exchange method
  • FIPS:OSPP crypto policy was configured on the RHEL8 server.

Environment

  • Red Hat Enterprise Linux (RHEL) 8
  • FIPS mode enabled.
  • FIPS:OSPP crypto policy enabled.

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