secureCRT连接时出现key exchange failed
答案:
1.打开文件:/etc/ssh/sshd_config文件;
2.在文件末尾添加下面配置: KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
3. 重启sshd service :systemctl restart sshd.service