Saturday, March 2, 2024

ssh cipher KexAlgorithms errors on ssh


Problem with logging in on a system via ssh. 

typical messages are such as:

Unable to negotiate with 192.168.1.196 port 22: no matching cipher found. Their offer: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

add Cipher stanza to config for the host

Host 192.168.1.196
  Ciphers aes256-ctr,aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc
  KexAlgorithms +diffie-hellman-group1-sha1
  User jws

suggested from



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