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Posted on August 29, 2018

If you start have SSH/SFTP/SCP connections to fail with error messages in regards to not matching ciphers, that were working, then stopped working, then this is most likely due to: the partner SSH server or client on the connection is running a very old version of the SSH / OpenSSH code, and you upgraded your OpenSSH on the IBM i (knowingly or unknowingly). IBM i OS 6.1, 7.1, and 7.2, OpenSSH on these releases was 6.6p1. In OpenSSH 6.7 and subsequent releases, changes were made to the default set of

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