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After ONTAP upgrade, older client systems can no longer connect via SSH

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ontap-9
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Applies to

  • ONTAP 9
  • SSH

Issue

After an ONTAP upgrade to ONTAP 9.8x, older Solaris clients no longer connect via SSH:
 
% ssh -o StrictHostKeyChecking=no -l login password
Client and server could not agree on a key exchange algorithm:
 client: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
 server: diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,curve25519-sha256@libssh.org

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