01 April 2016

Accessing Ubuntu VM using putty giving an error

     After update my ubuntu virtual machine, I see ssh stopped working for me and /var/log/auth.log show me this error:

Apr  1 09:17:50 ubuntuVM sshd[1638]: error: Hm, kex protocol error: type 30 seq 1 [preauth]

    If I try to connect from another linux machine or from localhost, it's fine. So after researching, I see the problem is the goddamit putty. So, it seems putty will not be fixed in the nearly future (and I don't know how bad this is for security, but I was in a hurry to access the machine via putty), so move the Diffie-hellman group exchange to the bottom (where is "warn below here"'):