SecureCRT、putty等远程工具连接openkylin

一、配置服务器

root@sky9890:~# apt-get install ssh   #安装
root@sky9890:~# systemctl restart ssh
root@sky9890:~# vi /etc/ssh/ssh_config   #配置
......
   Port 22             #启用端口号，并可以修改端口数
......

二、问题描述

SecureCRT、putty等远程工具连接openkylin报如下错误：

Key exchange failed.
No compatible key-exchange method. The server supports these methods: curve25519-sha256,curve25519-sha256@libssh.org,
ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,
diffie-hellman-group18-sha512,diffie-hellman-group14-sha256

三、解决方式

1.方法一

升级远程连接工具，将老版本升级到新版本即可。

2.方法二

sky9890@sky9890:~$ sudo vi  /etc/ssh/sshd_config
......
KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,di
ffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diff
ie-hellman-group1-sha1

sky9890@sky9890:~$ sudo systemctl restart ssh