SSH and Embedded Devices

For the past several years several options in SSH have been deprecated. This tends to confuse people trying to access older systems, especially embedded devices.

Deprecated does not mean deleted. The options remain available. Accessing older systems remains possible without error messages.

Commonly the trick is to explicitly support older key exchanges:

-oKexAlgorithms=+diffie-hellman-group1-sha1

Or in the user’s .ssh/config file:

KexAlgorithms diffie-hellman-group1-sha1

Posted: October 02, 2022 Category: Usability Tagged: General

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