Windows 7 Pro x64で、MySQL Workbenchクライアントが「TCP / IP over SSH」を使用してDebian WheezyでホストされているMySQLサーバーに接続するのに使用していますが、Debian Jessieの新しいサーバーでは機能しません。なぜですか？
MySQL Workbench設定：
Connection Name: TEST
Connection Method: Standard TCP/IP over SSH
SSH Hostname: x.x.x.x:22
SSH Username: root
SSH Password: myRootPa$$word
SSH Key File: <NOT-USING-KEYFILE>
MySQL Hostname: 127.0.0.1
MySQL Server Port: 3306
Username: root
Password: myMySQLPa$$word
IPアドレス/ホスト名、ユーザー名、パスワードを再確認しました...
Debian Wheezyサーバー構成：
root @ debian：〜＃cat / etc / debian_version
7.8
mysql> select version（）;
+------------------+
| version() |
+------------------+
| 5.5.40-0+wheezy1 |
+------------------+
1 row in set (0.00 sec)
root @ debian：〜＃cat / etc / ssh / sshd_config
Port 22
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
UsePrivilegeSeparation yes
KeyRegenerationInterval 3600
ServerKeyBits 768
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PermitRootLogin yes
StrictModes yes
RSAAuthentication yes
PubkeyAuthentication yes
IgnoreRhosts yes
RhostsRSAAuthentication no
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
Debian Jessieサーバー構成：
root @ debian：〜＃cat / etc / debian_version
8.0
mysql> select version（）;
+-----------------+
| version() |
+-----------------+
| 5.5.43-0+deb8u1 |
+-----------------+
1 row in set (0.00 sec)
root @ debian：〜＃cat / etc / ssh / sshd_config
Port 22
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
UsePrivilegeSeparation yes
KeyRegenerationInterval 3600
ServerKeyBits 1024
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PermitRootLogin yes
StrictModes yes
RSAAuthentication yes
PubkeyAuthentication yes
IgnoreRhosts yes
RhostsRSAAuthentication no
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
だから男の違いはServerKeyBits2つのsshd_configファイル間の違いです...
Debian Jessieサーバーに接続しようとすると、MySQL Workbench 6.3.3というエラーが表示されます。
Could not connect the SSH Tunnel
Authentication error, unhandled exception caught in tunnel manager, please refer to logs for details
ログファイル：
10:00:04 [INF][ SSH tunnel]: Starting tunnel
10:00:04 [INF][ SSH tunnel]: Existing SSH tunnel not found, opening new one
10:00:07 [INF][ SSH tunnel]: Opening SSH tunnel to 10.232.50.15:22
10:00:07 [WRN][sshtunnel.py:_connect_ssh:287]: IOError, probably caused by file C:\Users\myUser\AppData\Roaming\MySQL\Workbench\ssh\known_hosts not found, the message was: [Errno 2] No such file or directory: u'C:\\Users\\myUser\\AppData\\Roaming\\MySQL\\Workbench\\ssh\\known_hosts'
10:00:07 [ERR][sshtunnel.py:notify_exception_error:233]: Traceback (most recent call last):
File "C:\Program Files\MySQL\MySQL Workbench 6.3 CE\sshtunnel.py", line 297, in _connect_ssh
look_for_keys=has_key, allow_agent=has_key)
File "C:\Program Files\MySQL\MySQL Workbench 6.3 CE/python/site-packages\paramiko\client.py", line 301, in connect
t.start_client()
File "C:\Program Files\MySQL\MySQL Workbench 6.3 CE/python/site-packages\paramiko\transport.py", line 461, in start_client
raise e
SSHException: Incompatible ssh peer (no acceptable kex algorithm)
10:00:07 [INF][ SSH tunnel]: TunnelManager.wait_connection authentication error: Authentication error, unhandled exception caught in tunnel manager, please refer to logs for details
10:00:07 [ERR][ SSH tunnel]: Authentication error opening SSH tunnel: Authentication error, unhandled exception caught in tunnel manager, please refer to logs for details
詳細：
フォルダ「ssh」は次の場所にありません：
C:\Users\myUser\AppData\Roaming\MySQL\Workbench
両方のサーバーのファイアウォールルール：
root@debian:~# iptables -vnL
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
両方のサーバーでSSH（KiTTY）で接続できます...
私は2つの異なるバージョンのMySQL Workbenchを試しました。
Version 6.3.3.0 build 592 (64 bits)
Version 6.0.9.11421 build 1170 (32 bits)
これら2つのバージョンは、Debian Wheezyでは機能しますが、Debian Jessieでは機能しません。 何が欠けていますか？