1，secureCRT低版本不支持openeuler21的ssh服务器密钥交换
修改/etc/ssh/sshd_config，修改以下文本
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
注释掉：
#Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com
#MACs hmac-sha2-512,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha2-256-etm@openssh.com
2
新建用户wp
useradd wp
passwd wp
将用户添加到wheel组
usermod -G wheel wp
用secureCRT远程，用户名wp，然后su
