Vagrant: Problem with old (SHA-1) ssh key exchange when connecting to old server












1















I am using Vagrant to create hosts in network simulations. Recently, I re-installed an old pet-computer (ACME Foxboard, if you're interested) that still ran a very old Linux version. So old, that it required me to put



Host foxboard
KexAlgorithms +diffie-hellman-group1-sha1


in my .ssh/config, which is valid syntax from ssh version 7 on. However, since I did that, vagrant ssh started to refuse access to my machines:



$ vagrant ssh
/home/ljm/.ssh/config line 2: Bad SSH2 KexAlgorithms '+diffie-hellman-group1-sha1'.


Now, Vagrant states on its website:





SSH client usage



Vagrant will attempt to use the local SSH client installed on the host machine. On POSIX machines, an SSH client must be installed and available on the PATH.





So, I would expect things to work, especially because:



$ ssh -p 2222 vagrant@127.0.0.1
vagrant@127.0.0.1's password:


seems to work. But that means I have to distribute keys to all my machines to log-in.



Also, during boot, Vagrant seems to be able to ssh into the machine and, for example, change the ssh-keys.



Is there a solution that allows me to ssh into my personal computer museum and use a simple vagrant ssh?










share|improve this question





























    1















    I am using Vagrant to create hosts in network simulations. Recently, I re-installed an old pet-computer (ACME Foxboard, if you're interested) that still ran a very old Linux version. So old, that it required me to put



    Host foxboard
    KexAlgorithms +diffie-hellman-group1-sha1


    in my .ssh/config, which is valid syntax from ssh version 7 on. However, since I did that, vagrant ssh started to refuse access to my machines:



    $ vagrant ssh
    /home/ljm/.ssh/config line 2: Bad SSH2 KexAlgorithms '+diffie-hellman-group1-sha1'.


    Now, Vagrant states on its website:





    SSH client usage



    Vagrant will attempt to use the local SSH client installed on the host machine. On POSIX machines, an SSH client must be installed and available on the PATH.





    So, I would expect things to work, especially because:



    $ ssh -p 2222 vagrant@127.0.0.1
    vagrant@127.0.0.1's password:


    seems to work. But that means I have to distribute keys to all my machines to log-in.



    Also, during boot, Vagrant seems to be able to ssh into the machine and, for example, change the ssh-keys.



    Is there a solution that allows me to ssh into my personal computer museum and use a simple vagrant ssh?










    share|improve this question



























      1












      1








      1








      I am using Vagrant to create hosts in network simulations. Recently, I re-installed an old pet-computer (ACME Foxboard, if you're interested) that still ran a very old Linux version. So old, that it required me to put



      Host foxboard
      KexAlgorithms +diffie-hellman-group1-sha1


      in my .ssh/config, which is valid syntax from ssh version 7 on. However, since I did that, vagrant ssh started to refuse access to my machines:



      $ vagrant ssh
      /home/ljm/.ssh/config line 2: Bad SSH2 KexAlgorithms '+diffie-hellman-group1-sha1'.


      Now, Vagrant states on its website:





      SSH client usage



      Vagrant will attempt to use the local SSH client installed on the host machine. On POSIX machines, an SSH client must be installed and available on the PATH.





      So, I would expect things to work, especially because:



      $ ssh -p 2222 vagrant@127.0.0.1
      vagrant@127.0.0.1's password:


      seems to work. But that means I have to distribute keys to all my machines to log-in.



      Also, during boot, Vagrant seems to be able to ssh into the machine and, for example, change the ssh-keys.



      Is there a solution that allows me to ssh into my personal computer museum and use a simple vagrant ssh?










      share|improve this question
















      I am using Vagrant to create hosts in network simulations. Recently, I re-installed an old pet-computer (ACME Foxboard, if you're interested) that still ran a very old Linux version. So old, that it required me to put



      Host foxboard
      KexAlgorithms +diffie-hellman-group1-sha1


      in my .ssh/config, which is valid syntax from ssh version 7 on. However, since I did that, vagrant ssh started to refuse access to my machines:



      $ vagrant ssh
      /home/ljm/.ssh/config line 2: Bad SSH2 KexAlgorithms '+diffie-hellman-group1-sha1'.


      Now, Vagrant states on its website:





      SSH client usage



      Vagrant will attempt to use the local SSH client installed on the host machine. On POSIX machines, an SSH client must be installed and available on the PATH.





      So, I would expect things to work, especially because:



      $ ssh -p 2222 vagrant@127.0.0.1
      vagrant@127.0.0.1's password:


      seems to work. But that means I have to distribute keys to all my machines to log-in.



      Also, during boot, Vagrant seems to be able to ssh into the machine and, for example, change the ssh-keys.



      Is there a solution that allows me to ssh into my personal computer museum and use a simple vagrant ssh?







      ssh vagrant






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 10 mins ago









      Ned64

      2,57911336




      2,57911336










      asked 1 hour ago









      Ljm DullaartLjm Dullaart

      739212




      739212






















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