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如何在 RHEL8 中修改 SSH 客户端的 Ciphers、MAC、KexAlgoritms

Solution In Progress - Updated -

Issue

  • 从 RHEL8 客户端连接到其他 Linux 或窗口系统时，如何修复报告的 MAC 和 KexAlgorithms 问题。

  • 从 RHEL8 连接到窗口系统时，得到错误，如下所示。

    # ssh username@node.example.com
Unable to negotiate with x.x.x.x port 22: no matching MAC found. Their offer: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96

  • 在修复 MAC 问题时，请参阅 DH 组问题。

    # ssh username@node.example.com
Received disconnect from x.x.x.x port 22:2: Protocol error: no matching DH grp found
Disconnected from x.x.x.x port 22
Connection closed

Environment

  • Red Hat Enterprise Linux 8

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