Oracle Vagrant Box 无法登录的2个问题

安装Oracle Database 19c 的 VagrantBox ,非常顺利,耗时如下:

real    30m36.783s
user    0m0.000s
sys     0m0.047s

前面一切顺利,但是vagrant ssh和vagrant putty均不能登录虚机。我的环境是Windows 11,Vagrant 2.4和VirtualBox 7.0。

这个错误肯定是和ssh相关的,以下命令显示了vagrant中ssh的配置。其中IdentityFile就是私钥文件:

$ vagrant ssh-config
Host oracle-19c-vagrant
  HostName 127.0.0.1
  User vagrant
  Port 2222
  UserKnownHostsFile /dev/null
  StrictHostKeyChecking no
  PasswordAuthentication no
  IdentityFile C:/Users/****/Desktop/WORKSPACE/vagrant-projects/OracleDatabase/19.3.0/.vagrant/machines/oracle-19c-vagrant/virtualbox/private_key
  IdentitiesOnly yes
  LogLevel FATAL
  PubkeyAcceptedKeyTypes +ssh-rsa
  HostKeyAlgorithms +ssh-rsa

利用上面的信息,就可以用ssh直接登录来测试了。

vagrant ssh不能登录虚机

$ vagrant ssh
[email protected]: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

没有权限这个报错真是太抽象了,误导了我很长时间。

如果用ssh直接登录,错误类似,但会多一个Load key的信息:

$ ssh -l vagrant -p 2222 -i "C:/Users/XiaoYu/Desktop/WORKSPACE/vagrant-projects/OracleDatabase/19.3.0/.vagrant/machines/oracle-19c-vagrant/virtualbox/private_key" 127.0.0.1
The authenticity of host '[127.0.0.1]:2222 ([127.0.0.1]:2222)' can't be established.
ED25519 key fingerprint is SHA256:WnMw/1XuV9GuqSxZfkP239KEN4bVrONP61AtVVzqvk0.
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '[127.0.0.1]:2222' (ED25519) to the list of known hosts.
Load key "C:/Users/XiaoYu/Desktop/WORKSPACE/vagrant-projects/OracleDatabase/19.3.0/.vagrant/machines/oracle-19c-vagrant/virtualbox/private_key": error in libcrypto
[email protected]: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

最终是这个帖子提供了解决方法,原因是私钥文件的格式不对。

I would double check that your private key secret has a newline character at the end of the file, because for some reason libcrypto requires it to be a “valid format”

因为我是在gitbash下运行vagrant ssh命令的,gitbash需要Linux格式的密钥文件,而此时的秘钥文件为DOS格式。因此,用gitbash下提供dos2unix命令转换就好:

$ dos2unix.exe C:/Users/XiaoYu/Desktop/WORKSPACE/vagrant-projects/OracleDatabase/19.3.0/.vagrant/machines/oracle-19c-vagrant/virtualbox/private_key
dos2unix: converting file C:/Users/XiaoYu/Desktop/WORKSPACE/vagrant-projects/OracleDatabase/19.3.0/.vagrant/machines/oracle-19c-vagrant/virtualbox/private_key to Unix format...

如果你用vi查看文件,你会发现底部有dos的显示,转换后就变为unix了:
Oracle Vagrant Box 无法登录的2个问题_第1张图片
以下是成功的登录:

$ vagrant ssh
Last login: Wed Jan 10 21:01:16 2024 from 10.0.2.2

Welcome to Oracle Linux Server release 7.9 (GNU/Linux 5.4.17-2136.325.5.el7uek.x86_64)

The Oracle Linux End-User License Agreement can be viewed here:

  * /usr/share/eula/eula.en_US

For additional packages, updates, documentation and community help, see:

  * https://yum.oracle.com/

[vagrant@oracle-19c-vagrant ~]$

vagrant putty 不能登录虚机

错误如下:

$ vagrant putty
C:/Users/XiaoYu/.vagrant.d/gems/3.1.3/gems/vagrant-multi-putty-1.6.0/lib/vagrant-multi-putty/command.rb:114:in `read': Could not parse PKey: unsupported (OpenSSL::PKey::PKeyError)
        from C:/Users/XiaoYu/.vagrant.d/gems/3.1.3/gems/vagrant-multi-putty-1.6.0/lib/vagrant-multi-putty/command.rb:114:in `block in get_putty_key_file'
        from :90:in `tap'
        from C:/Users/XiaoYu/.vagrant.d/gems/3.1.3/gems/vagrant-multi-putty-1.6.0/lib/vagrant-multi-putty/command.rb:112:in `get_putty_key_file'
        from C:/Users/XiaoYu/.vagrant.d/gems/3.1.3/gems/vagrant-multi-putty-1.6.0/lib/vagrant-multi-putty/command.rb:94:in `putty_connect'
        from C:/Users/XiaoYu/.vagrant.d/gems/3.1.3/gems/vagrant-multi-putty-1.6.0/lib/vagrant-multi-putty/command.rb:53:in `block in execute'
        from C:/Program Files/Vagrant/embedded/gems/gems/vagrant-2.4.0/lib/vagrant/plugin/v2/command.rb:249:in `block in with_target_vms'
        from C:/Program Files/Vagrant/embedded/gems/gems/vagrant-2.4.0/lib/vagrant/plugin/v2/command.rb:238:in `each'
        from C:/Program Files/Vagrant/embedded/gems/gems/vagrant-2.4.0/lib/vagrant/plugin/v2/command.rb:238:in `with_target_vms'
        from C:/Users/XiaoYu/.vagrant.d/gems/3.1.3/gems/vagrant-multi-putty-1.6.0/lib/vagrant-multi-putty/command.rb:51:in `execute'
        from C:/Program Files/Vagrant/embedded/gems/gems/vagrant-2.4.0/lib/vagrant/cli.rb:67:in `execute'
        from C:/Program Files/Vagrant/embedded/gems/gems/vagrant-2.4.0/lib/vagrant/environment.rb:319:in `cli'
        from C:/Program Files/Vagrant/embedded/gems/gems/vagrant-2.4.0/bin/vagrant:248:in `<main>'

如果putty直接登录:

putty -l vagrant -P 2222 -i "C:/Users/XiaoYu/Desktop/WORKSPACE/vagrant-projects/OracleDatabase/19.3.0/.vagrant/machines/oracle-19c-vagrant/virtualbox/private_key" 127.0.0.1

报错如下:
Oracle Vagrant Box 无法登录的2个问题_第2张图片
这个错误的原因在于,putty需要的密钥是PPK格式,而在密钥目录下,这个PPK文件不存在(原因尚不知道),但openssh格式的密钥文件private_key是存在的。

$ cd .vagrant/machines/oracle-19c-vagrant/virtualbox/

$ ls *key*
private_key

$ cat private_key
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1r...
bucpF2j40j3P6HpKqZaLac+gSYPHu42dSjSRObH7jgFltC8FwlslPuVAvY4W
AAAAB3ZhZ3JhbnQBAgMEBQY=
-----END OPENSSH PRIVATE KEY-----

所以,只需要通过puttygen将private_key导入,转换后另存为private_key.ppk到其目录下即可。

$ ls *key*
private_key  private_key.ppk

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