$ ssh 192.168.0.5 Unable to negotiate with 192.168.0.5 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss でした。 背景 https://www.openssh.com/txt/release-8.8 によると、 Potentially-incompatible changes This release disables RSA signatures using the SHA-1 hash algorithm by default. This change has been made as the SHA-1 hash algorithm is cryptographically broken, and it is possible to cr