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SSH No Key Exchange method found

Created by dave. Last edited by dave, 32 days ago. Viewed 35 times. #1
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(2022-11-02)

Problem

# ssh 192.168.2.91
Unable to negotiate with 192.168.2.91 port 22: no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1,diffie-hellman-group14-sha1

Solution

Add one of the presented options:

# ssh -oKexAlgorithms=+diffie-hellman-group14-sha1 192.168.2.91
The authenticity of host '192.168.2.91 (192.168.2.91)' can't be established.
[...]
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This is a collection of techical information, much of it learned the hard way. Consider it a lab book or a /info directory. I doubt much of it will be of use to anyone else.

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