6.40 SecureCRT 7.3.3连接Debian 8.0的SSH时失败

https://scz.617.cn/network/201505311729.txt

Q:

SecureCRT 7.3.3连接Debian 8.0的SSH时失败，报:

Key exchange failed.

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

No compatible cipher. The server supports these ciphers:
AES-128-CTR,AES-192-CTR,AES-256-CTR,aes128-gcm@openssh.com,aes256-gcm@openssh.com,
chacha20-poly1305@openssh.com

而PuTTY可以成功连接目标SSH。

A:

检查SecureCRT的"Session Options":

Connection->SSH2->Authentication->Password
Connection->SSH2->Key exchange->ecdh-sha2-nistp256
Connection->SSH2->Advanced->Cipher->AES-256-CTR
Connection->SSH2->Advanced->MAC->SHA2-256

这里只是举例，实际选哪些，根据"Key exchange failed"错误提示决定。