现象
xshell5登录欧拉22.03时报错:找不到匹配的host key算法
解决方法
编辑/etc/ssh/sshd_config,如下所示:
# 在行尾增加",ecdh-sha2-nistp521",以满足ecdsa公钥方式登录(密钥长度521)
KexAlgorithms curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp521
# 在行尾增加",ssh-rsa",以满足RSA登录
HostKeyAlgorithms ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512,ssh-rsa
# 在行尾增加",ssh-rsa",以满足RSA登录
PubkeyAcceptedKeyTypes ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512,ssh-rsa
重启sshd服务,在次登录即可
systemctl restart sshd
另外一个解决方法屏蔽的方式测试过没用,只能用上面方法才能解决
1.编辑/etc/ssh/sshd_config,如下所示:
# 屏蔽下面的2行(最后2行)
# HostKeyAlgorithms ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512
# PubkeyAcceptedKeyTypes ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512