Netbeans SSH:无法连接到服务器。算法协商失败--如何修复？

Question

服务器提供以下调试输出。似乎有常见的算法，无论如何，我得到一个“算法协商失败”的错误，从Netbeans。从下面的答案中，我知道可能缺少的算法是原因(JSchException: Algorithm negotiation fail)。

你有什么想法吗?哪里出了问题，怎么解决？

Connecting to www.example.com port 19229
Connection established
Remote version string: SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu1
Local version string: SSH-2.0-JSCH-0.1.49
CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
aes256-ctr is not available.
aes192-ctr is not available.
aes256-cbc is not available.
aes192-cbc is not available.
arcfour256 is not available.
CheckKexes: diffie-hellman-group14-sha1
diffie-hellman-group14-sha1 is not available.
SSH_MSG_KEXINIT sent
SSH_MSG_KEXINIT received
kex: server: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
kex: server: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256
kex: server: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
kex: server: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
kex: server: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
kex: server: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
kex: server: none,zlib@openssh.com
kex: server: none,zlib@openssh.com
kex: server:
kex: server:
kex: client: diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1
kex: client: ssh-rsa,ssh-dss
kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
kex: client: none
kex: client: none
kex: client:
kex: client:
Disconnecting from ... port 19229
QUIT
Goodbye

Answer 1

最终在这里找到了答案：bug.cgi?id=251641

Netbeans使用JSch库。可能需要一个更新的库。

1)下载最新版本的JSch库(http://www.jcraft.com/)

2)将当前文件重命名为备份C：\文件夹\ide\modules\com-jcraft-jsch.jar

3)将x.x版本的com-jcraft-jsch.jar下载到此文件夹。

4)重新启动Netbeans

宾果！！SSH再次工作，并与OpenSSH x.x服务器一起工作。